Mar. 2001, 日本畜産学会, 日本畜産学会奨励賞　　　　　　　　　　　　　　　
上田 宏一郎

Deep learning approach for classifying grazing behavior in yearling horses using triaxial accelerometer data: a pilot study
Uta Kamiya, Kasumi Kakiuchi, Kensuke Kawamura, Koichiro Ueda, Masahito Kawai, Akira Matsui, Natsuko Negishi
Journal of Equine Veterinary Science, 105706, 105706, Elsevier BV, Oct. 2025, [Peer-reviewed]
English, Scientific journal

Effect of grain vinegar feeding on milk production and fatty acid profile of Holstein cows
Seongjin Oh, Tomohiro Mitani, Masahito Kawai, Koichiro Ueda
Journal of Animal Science and Technology, 66, 6, 1162, 1169, Korean Society of Animal Science and Technology, 30 Nov. 2024, [Peer-reviewed]
English, Scientific journal

Blood composition before the clinical diagnosis of digestive and respiratory disease in pre-weaning dairy calves　　　　　　　　　　　　　　　
Yuko SHINGU, Koichiro UEDA, Yoshitaka MATSUI, Takuji WAKATSUKI, Akira DOKOSHI
Animal Behaviour and Management, 60, 1, 19, 25, 2024, [Peer-reviewed]

Changes of the daily and hourly behavioral time of respiratory disease calves in a group rearing system for 7 days prior to the date of clinical diagnosis.
Shigeru Morita, Yuko Shingu, Akira Dokoshi, Koichiro Ueda
Animal science journal = Nihon chikusan Gakkaiho, 94, 1, e13863, 2023, [Peer-reviewed], [Last author], [International Magazine]
English, Scientific journal, Respiratory disease in calves is one of the most prominent diseases affecting their growth. The early and accurate detection of calf disease on the farm brings proper growth of calves. The objective of this study was to compare the daily and hourly behavioral time of diseased calves with the other calves in same pen (pen-mates) for 7 days prior to the diagnosis day. The calves (from 14 to 20 heads) were reared in a group. Day 0 was defined as the day of diagnosis. The number of diseased calves was 30 in the present experiment. The lying and eating behavior of calves were observed at 10-min intervals. The diseased calves have significantly (P < 0.01) shorter eating times than the pen-mates on the diagnosis day. The longest hourly time of the eating was in the period between 08:00 and 09:00, and shortest lying time was in the period between 09:00 and 10:00. Diseased calves had significantly (P < 0.05) longer daily lying time and shorter daily eating time than the pen-mates almost for the 7 days prior to the diagnosis day. Even though the daily behavioral time was different, the difference of behavioral time in successive hour periods was limited.

Early detection of disease onset through changes in appearance of pre‐weaning calves
Yuko Shingu, Akira Dokoshi, Koichiro Ueda
Animal Science Journal, 94, 1, Wiley, Jan. 2023, [Peer-reviewed], [Last author]
Scientific journal

Use of a commercial indoor positioning system for monitoring resting time and moving distance in group-housed dairy calves.
Koichiro Ueda, Takakyuki Ishii, Yukako Nakai, Kunio Odaka
Animal science journal = Nihon chikusan Gakkaiho, 94, 1, e13830, 2023, [Peer-reviewed], [Lead author], [International Magazine]
English, Scientific journal, To assess the usefulness of a commercially available indoor positioning system for monitoring the resting time and moving distance in group-housed dairy calves as indicators of their health status, five dairy calves were housed in a free barn, and their coordinate was recorded. The mean displacement (cm/s) within a minute showed a double-mixture distribution. Actual observations revealed that the minutes in the first distribution with shorter displacement were mostly the time that the calves spent lying. To predict the daily lying time and moving distance, a mixed distribution was divided at a threshold value. The mean sensitivity (the proportion of total minutes predicted correctly as lying, in total minutes observed lying) was more than 92%. The daily fluctuation in lying time correlated well with the actual lying time (r = 0.758, p < 0.01). The range of fluctuations was 740-1308 min/day and 724-1269 m/day for daily lying time and moving distance, respectively. The rectal temperature was correlated with daily lying time (r = 0.441, p < 0.001) and distance moved (r = 0.483, p < 0.001). The indoor positioning system can be a useful tool for early illness detection in calves before the onset of symptoms in group-housing systems.

Simultaneous free fatty acid elevations and accelerated desaturation in plasma and oocytes in early postpartum dairy cows under intensive feeding management
Eri Furukawa, Zhen Chen, Tomoaki Kubo, Yue Wu, Koichiro Ueda, Madalitso Chelenga, Hitoshi Chiba, Yojiro Yanagawa, Seiji Katagiri, Masashi Nagano, Shu-Ping Hui
Theriogenology, 193, 20, 29, Elsevier BV, Nov. 2022, [Peer-reviewed], [International Magazine]
English, Scientific journal, A severe negative energy balance and high circulating free fatty acids (FFA) in postpartum cows impair fertility. The lipotoxicity of FFA has been shown to decrease the quality of bovine oocytes in vitro. Therefore, excess FFA in cells is converted to triacylglycerol (TAG), a non-toxic form, to avoid lipotoxicity. We recently reported that the TAG content in oocytes was higher in postpartum lactating cows subjected to grazing management than in heifers (Theriogenology 176: 174-182, 2021). The present study investigated the compositions of the energy metabolism-related lipids, FFA and TAG, in the plasma and oocytes of cows at different lactation stages under indoor intensive feeding management in order to obtain insights into lipotoxicity in oocytes, particularly those in early postpartum cows. Blood and oocytes were collected from 20 lactating cows categorized into the following lactation groups: 20-30 days in milk (DIM) (n = 5), 40-50 DIM (n = 5), 60-80 DIM (n = 5), and 130-160 DIM (n = 5). Daily energy balance data were obtained for 3 weeks prior to oocyte collection using the ovum pick up (OPU) method. The contents and compositions of FFA and TAG in plasma and oocytes were analyzed using liquid chromatography-mass spectrometry. As expected, plasma FFA was high at 20-30 DIM, decreased by 50 DIM, and was maintained at a low level for the remainder of the experimental period. Similar changes were observed in oocyte FFA and TAG with DIM as plasma FFA. Oocyte FFA positively correlated with plasma FFA (P < 0.05), but negatively correlated with the mean energy balance 1 and 21 days before OPU (P < 0.05). Relationships were noted between the composition and content of FFA in plasma and oocytes, with the FFA 16:1/16:0 and 18:1/18:0 ratios positively correlating with the total amount of FFA (P < 0.05). Elevated oocyte FFA in cows in the early postpartum period under intensive feeding management suggested that oocytes were at a high risk of FFA lipotoxicity. Furthermore, the present results implied that the severe negative energy balance in the previous few weeks was closely related to increases in oocyte FFA, which supports the importance of long-term cow feeding management for preserving the quality of oocytes in the early postpartum period. The present results provide insights into the effects of high circulating FFA on the fertility of postpartum cows.

Dietary raffinose ameliorates hepatic lipid accumulation induced by cholic acid via modulation of enterohepatic bile acid circulation in rats.
Kenta Maegawa, Haruka Koyama, Satoru Fukiya, Atsushi Yokota, Koichiro Ueda, Satoshi Ishizuka
The British journal of nutrition, 127, 11, 1621, 1630, 14 Jun. 2022, [Peer-reviewed], [International Magazine]
English, Scientific journal, Enterohepatic circulation of 12α-hydroxylated (12αOH) bile acid (BA) is enhanced depending on the energy intake in high-fat diet-fed rats. Such BA metabolism can be reproduced using a diet supplemented with cholic acid (CA), which also induces simple steatosis, without inflammation and fibrosis, accompanied by some other symptoms that are frequently observed in the condition of non-alcoholic fatty liver in rats. We investigated whether supplementation of the diet with raffinose (Raf) improves hepatic lipid accumulation induced by the CA-fed condition in rats. After acclimation to the AIN-93-based control diet, male Wistar rats were fed diets supplemented with a combination of Raf (30 g/kg diet) and/or CA (0·5 g/kg diet) for 4 weeks. Dietary Raf normalised hepatic TAG levels (two-way ANOVA P < 0·001 for CA, P = 0·02 for Raf and P = 0·004 for interaction) in the CA-supplemented diet-fed rats. Dietary Raf supplementation reduced hepatic 12αOH BA concentration (two-way ANOVA P < 0·001 for CA, P = 0·003 for Raf and P = 0·03 for interaction). The concentration of 12αOH BA was reduced in the aortic and portal plasma. Raf supplementation increased acetic acid concentration in the caecal contents (two-way ANOVA P = 0·001 as a main effect). Multiple regression analysis revealed that concentrations of aortic 12αOH BA and caecal acetic acid could serve as predictors of hepatic TAG concentration (R2 = 0·55, P < 0·001). However, Raf did not decrease the secondary 12αOH BA concentration in the caecal contents as well as the transaminase activity in the CA diet-fed rats. These results imply that dietary Raf normalises hepatic lipid accumulation via suppression of enterohepatic 12αOH BA circulation.

Measurement of frequency of sucking in rubber teat-fed dairy calves using an accelerometer attached on the neck-collar　　　　　　　　　　　　　　　
Shigeru MORITA, Syunpei OKAZAKI, Hiroyuki KATO, Koichiro UEDA
58, 3, 109, 115, 2022, [Peer-reviewed], [Last author]

Effects of soybean meal supplementation on ruminal kinetics of feed particle size reduction and passage in dairy cows fed rice straw.
Kyaw San Win, Koichiro Ueda, Seiji Kondo
Animal science journal = Nihon chikusan Gakkaiho, 92, 1, e13590, Dec. 2021, [Peer-reviewed], [International Magazine]
English, Scientific journal, Six ruminal-cannulated nonlactating Holstein Friesian cows (mean body weight:660 ± 42.9 kg) were used to investigate the effect of soybean meal (SBM) supplementation on voluntary rice straw (RS) intake, feed particle size reduction, and passage kinetics in the rumen. They were allocated to two dietary treatments: RS alone or RS supplemented with SBM. Voluntary dry matter intake of RS and total tract fiber digestibility was increased by SBM supplementation (p < 0.05). Supplementation with SBM decreased rumination time per dietary dry matter (DM) and neutral detergent fiber (NDFom) intake (p < 0.01). Particle size distribution in the rumen and total ruminal NDFom digesta weights were not affected by SBM supplementation. However, the disappearance rates of total digesta and large and small particles from the rumen were increased by SBM supplementation (p < 0.01). Moreover, SBM supplementation increased the rate of size reduction in ruminal particles (p < 0.05). In situ disappearance of DM and NDFom of RS in the rumen was greater in SBM-supplemented cows than in nonsupplemented cows (p < 0.05). This study clearly showed that increased ruminal RS particle size reduction, passage, and fermentation due to SBM supplementation accelerated the RS particle clearance from the rumen and resulted in increased voluntary RS intake of dairy cows.

Regional differences in the fatty acid composition, and vitamin and carotenoid concentrations in farm bulk milk in Hokkaido, Japan.
Tomohiro Mitani, Kuniyuki Kobayashi, Koichiro Ueda, Seiji Kondo
Animal science journal = Nihon chikusan Gakkaiho, 92, 1, e13570, Jan. 2021, [Peer-reviewed], [International Magazine]
English, Scientific journal, In this study, we investigated the regional differences in the composition of farm bulk milk produced at three different dairy areas in Hokkaido, Japan. A field survey was conducted at Central, Tokachi, and North areas of Hokkaido, three or four times a year. At each farm, an interview questionnaire for farm basal data was conducted, and 500 ml of bulk tank milk sample was obtained. Fatty acid composition, and vitamin and carotenoid concentrations in the milk samples were determined. In Central and Tokachi areas, corn silage was used as the main forage. In North area, fresh herbage was the dominant feed in the summer season, and grass hay was the main feed in the winter season. Discriminant analysis revealed that the composition of milk samples differed among the areas and seasons. Milk from Central and Tokachi areas contained a higher ratio of linoleic acid compared with that from North area, but there were only slight differences in the composition of milk between Central and Tokachi areas. The concentrations of carotenoids and α-tocopherol were higher in samples from North area and the ratios of trans-vaccenic acid and conjugated linoleic acid were higher in the summer season than in the indoor season.

Effects of grazing adaptation on herbage intake, milk production, and body weight change in lactating dairy cows after turning out to pasture in early spring.
Tomohiro Mitani, Sawako Nakajima, Seongjin Oh, Masahito Kawai, Koichiro Ueda
Animal science journal = Nihon chikusan Gakkaiho, 92, 1, e13639, 2021, [Peer-reviewed], [Last author], [International Magazine]
English, Scientific journal, The present study investigated the effects of adaptation to grazing in early spring on the herbage intake, milk production, and body weight changes in lactating dairy cows. The experiment included 12 Holstein lactating cows during early spring. Six cows were allowed to gradually adapt to grazing (ADP) over 10 days. They were allowed to graze on a pasture for 4 h during the first week and for 19 h during the remaining 3 days (adaptation period). During the 10-day period, the remaining six cows were housed in a barn (CON). Cows in both groups received adequate silage, hay, and concentrate during the adaptation period. Subsequently, cows in both groups were allowed to graze together for 19 h for 4 weeks (experimental period). No cow received supplements during the experimental period. In the first week of the experimental period, the ADP cows showed a higher herbage intake than the CON cows. During the subsequent weeks, there were no differences in herbage intake between the two groups. At the start of the experimental period, milk production and body weight of the ADP cows were higher than those of the CON cows, and this difference lasted until the end of the experiment.

Effects of grazing adaptation on intake, ruminal fermentation, blood metabolites, and body weight change in dairy cows after turning out to pasture in early spring.
Tomohiro Mitani, Tomoyo Kubota, Hitoshi Mizuguchi, Shiro Kushibiki, Koichiro Ueda
Animal science journal = Nihon chikusan Gakkaiho, 91, 1, e13481, Jan. 2020, [Peer-reviewed], [Last author], [International Magazine]
English, Scientific journal, This study investigated the effect of adaptation to grazing in early spring on herbage intake, ruminal fermentation parameters, blood metabolite concentrations, and body weight change in dairy cows. The experiment was conducted on eight rumen-cannulated non-lactating cows in the early spring period. Four cows were adapted to grazing by stocking for 4 hr for 1 week (ADP group). The other cows were kept in a barn during the period (CON group). Then, both groups of cows were stocked together throughout a day on a 1 ha pasture for 3 weeks (experimental period). In the first week of the experimental period, compared to the CON group, the ADP group had a higher herbage intake, ruminal NH3 -N and total VFA concentration, and blood urea concentration, but the NEFA concentration was lower in the ADP group (p < .01). During the subsequent weeks, there were little differences in ruminal fermentation parameters and blood metabolites. Cows in the ADP group maintained their body weight, but cows in the CON group lost 60 kg of body weight in the first week of the experimental period.

Relationship between the timing of the first postpartum ovulation and antral follicle counts in Holstein cows
Furukawa E, Masaki T, Sakaguchi K, Bo M, Yanagawa Y, Ueda K, Nagano M
Journal of Ovarian Research, 13, 1, 7, 7, Jan. 2020, [Peer-reviewed], [International Magazine]
English, Scientific journal, BACKGROUND: The timing of the first postpartum ovulation is an important factor affecting the timing of estrous resumption in dairy cows. The first postpartum ovulation is delayed in cows producing large amounts of milk with an intensive negative energy balance. The antral follicle count (AFC) and serum anti-Müllerian hormone concentrations are known to be indicators of the ovarian reserve, which is the number and quality of follicles left in a pair of ovaries and known as an indicator of female fertility. Cows with higher AFC have been proven to show higher pregnancy rate and shorter calving to conception intervals; however, the relationship between the timing of the first postpartum ovulation and ovarian reserve remains unclear. Therefore, this study examined the relationships between postpartum follicular dynamics, the ovarian cycle, nutritional status, and ovarian reserve. METHODS: Transrectal ultrasonography was conducted from calving to 70-120 days in milk (DIM) in 26 cows to monitor AFC, follicular dynamics and the ovarian cycle. Body weight (BW) and milk yield were used as indicators of nutritional status. RESULTS: The first postpartum ovulation was significantly later in cows with low AFC (< 25) than in those with high AFC (≥25), while changes in BW from calving to the nadir and milk production were similar in both groups. The present results also suggested that cows with low AFC and a delayed first postpartum ovulation had a shorter first ovarian cycle after the first postpartum ovulation. The mean DIM of the first postpartum artificial insemination (AI) and days open (days from calving to AI with which pregnancy was achieved) were similar in high and low AFC groups. CONCLUSIONS: The first postpartum ovulation was significantly earlier in cows with high AFC than in those with low AFC. The assumed reason for this result was higher sensitivity to luteinizing hormone and larger androstenedione and estradiol production in follicles in high AFC cows. Therefore, cows with high AFC may be more fertile than those with low AFC while their milk production increase and BW decrease; it means they are in negative energy balance. (340/350 words).

Effects of the presence of grazing-experienced heifers on the development of foraging behavior at the feeding station scale for first-grazing season calves
Yuko Shingu, Koichiro Ueda, Shingo Tada, Tomohiro Mitani, Seiji Kondo
Animal Science Journal, 88, 8, 1120, 1127, Aug. 2017, [Peer-reviewed]
English, Scientific journal

Skill reading of human social cues by horses (Equus caballus) reared under year-round grazing conditions
Ryoko Koizumi, Tomohiro Mitani, Koichiro Ueda, Seiji Kondo
Animal Behaviour and Management, 53, 2, 69, 78, 日本家畜管理学会, 2017, [Peer-reviewed]
English

Effect of timing and type of supplementary grain on herbage intake, nitrogen utilization and milk production in dairy cows grazed on perennial ryegrass pasture from evening to morning
Koichiro Ueda, Tomohiro Mitani, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 88, 1, 107, 118, Jan. 2017, [Peer-reviewed]
English, Scientific journal

Effect of increased concentrate allotment before evening grazing on herbage intake, nitrogen utilization and rumen fermentation in dairy cows grazed on perennial ryegrass pasture
Koichiro Ueda, Tomohiro Mitani, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 87, 10, 1233, 1243, Oct. 2016, [Peer-reviewed]
English, Scientific journal

Relationship of rumen fill and fermentation to diurnal and seasonal variation of herbage intake in dairy cows grazed on perennial ryegrass pasture
Koichiro Ueda, Tomohiro Mitani, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 87, 9, 1148, 1156, Sep. 2016, [Peer-reviewed], [Lead author]
English, Scientific journal

Effect of water-soluble carbohydrate content in orchardgrass pasture on grazing time and rumen fermentation in dairy cows
Koichiro Ueda, Tomohiro Mitani, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 87, 9, 1122, 1129, Sep. 2016, [Peer-reviewed], [Lead author]
English, Scientific journal

Herbage intake and ruminal digestion of dairy cows grazed on perennial ryegrass pasture either in the morning or evening
Koichiro Ueda, Tomohiro Mitani, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 87, 8, 997, 1004, Aug. 2016, [Peer-reviewed]
English, Scientific journal

Discrimination of "grazing milk" using milk fatty acid profile in the grassland dairy area in Hokkaido
Tomohiro Mitani, Kuniyuki Kobayashi, Koichiro Ueda, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 87, 2, 233, 241, Feb. 2016, [Peer-reviewed]
English, Scientific journal

Regional difference of feeding management and milk composition in Hokkaido, Japan　　　　　　　　　　　　　　　
Tomohiro Mitani, Kuniyuki Kobayashi, Tetsushiro Endo, Koichiro Ueda, Seiji Kondo
Proceedings of the 6th Korea-China-Japan Grassland Conference, 86, 89, 2016

Large-Scale Glycomics of Livestock: Discovery of Highly Sensitive Serum Biomarkers Indicating an Environmental Stress Affecting Immune Responses and Productivity of Holstein Dairy Cows
Ibrahim F. Rehan, Koichiro Ueda, Tomohiro Mitani, Maho Amano, Hiroshi Hinou, Tetsu Ohashi, Seiji Kondo, Shin-Ichiro Nishimura
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 63, 48, 10578, 10590, Dec. 2015, [Peer-reviewed]
English, Scientific journal

Effects of grass hay proportion in a corn silage-based diet on rumen digesta kinetics and digestibility in dairy cows
Kyaw San Win, Koichiro Ueda, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 86, 9, 833, 841, Sep. 2015, [Peer-reviewed]
English, Scientific journal

Effect of substitution of highly-digestible fiber of beet pulp for corn grain starch in concentrate on energy balance and recovery of ovarian function in early lactating dairy cows　　　　　　　　　　　　　　　
Bo M, Masaki, T, Nagano, M, Yanagawa, Y, Mitani, T, Ueda, K, Kondo, S
Hokkaido Journal of Livestock and Grassland Science, 3, 45, 53, 2015, [Peer-reviewed]
English, Scientific journal

Effect of group size on the consistency of movement direction among cows in a small grazing group
TADA Shingo, UEDA Koichiro, NAKATSUJI Hiroki, KONDO Seiji
Animal Behaviour and Management, 50, 2, 61, 68, Japanese Soceity of Livestock Management, Jun. 2014, [Peer-reviewed]
English, Scientific journal, Under rotational grazing by dairy cows, effect of stocking rate on soil animal, soil microorganism, inorganic nitrogen contents in soil, herbage production and nitrogen intake were evaluated using five perennial ryegrassdominant pastures. Each pasture was grazed at once every fifteen days from early July to early October. The stocking rate of each pasture was 10, 20, 30, 40 and 50cow-hr/ha/day, respectively. In stocking rate 10-40 cow-hr/ha/day, the number of soil animals and herbage regrowth tended to increase with increasing the stocking rate, and consequently, herbage production and nitrogen intake increased, although soil microorganisms and inorganic nitrogen contents in soil had little differences. However, in stocking rate 50cow-hr/ha/day, herbage production and nitrogen intake were lower than in stocking rate 40cow-hr/ha/day, because herbage regrowth was lower than stocking rate 40 cow-hr/ha/day, and the number of soil animals and inorganic nitrogen contents in soil were the lowest in all stocking rate-treatment.

Effect of grass hay intake on fiber digestion and digesta retention time in the hindgut of horses
M. Miyaji, K. Ueda, H. Hata, S. Kondo
JOURNAL OF ANIMAL SCIENCE, 92, 4, 1574, 1581, Apr. 2014, [Peer-reviewed]
English, Scientific journal

Relationship between in vitro digestibility and preference order of woodland plants by Hokkaido native horse
内山 知, 上田宏一郎, 秦 寛, 近藤 誠司
北海道畜産学会報, 2, 93, 97, 北海道畜産草地学会, 2014, [Peer-reviewed]
Japanese, Scientific journal

Effects of a proportion of herbage intake and crude protein content of herbage on nitrogen and energy utilization in lactating dairy cows
Mitani, T, Ueda, K, Endo, T, Takahashi, M, Nakatsuji, H, Kondo, S
Hokkaido Journal of Livestock and Grassland Science, 2, 51, 62, 北海道畜産草地学会, 2014, [Peer-reviewed]
English, Scientific journal

Fractal analysis for quantification of grazing paths of cows on homogeneous pastures
Shingo Tada, Makoto Takahashi, Koichiro Ueda, Hiroki Nakatsuji, Seiji Kondo
Behavioural Processes, 92, 107, 112, Jan. 2013, [Peer-reviewed]
English, Scientific journal

Evaluation of associative effects on ruminal digestion kinetics between pasture and grains using in vitro gas production method
Aye Sandar Cho, Koichiro Ueda, Seiji Kondo
Animal Science Journal, 83, 9, 650, 655, Sep. 2012, [Peer-reviewed]
English, Scientific journal

Evaluation of associative effects on ruminal digestion kinetics between rice straw and protein supplements　　　　　　　　　　　　　　　
Cho, A, Ueda, K, Kondo, S
北海道畜産学会報, 54, 47, 52, 2012, [Peer-reviewed]
English, Scientific journal

Bean husks as a supplemental fiber for ruminants: Potential use for activation of fibrolytic rumen bacteria to improve main forage digestion
Tin Ngwe, Yoko Nukui, Shinya Oyaizu, Genki Takamoto, Satoshi Koike, Koichiro Ueda, Hiroki Nakatsuji, Seiji Kondo, Yasuo Kobayashi
ANIMAL SCIENCE JOURNAL, 83, 1, 43, 49, 2012, [Peer-reviewed]
English, Scientific journal

Effect of feeding non-fibrous carbohydrate before grazing on intake and nitrogen utilization in dairy cows throughout the grazing season
Tomohiro Mitani, Koichiro Ueda, Tetsushiro Endo, Makoto Takahashi, Hiroki Nakatsuji, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 83, 2, 121, 127, 2012, [Peer-reviewed]
English, Scientific journal

Effects of quality and physical form of hay on mean retention time of digesta and total tract digestibility in horses
M. Miyaji, K. Ueda, H. Hata, S. Kondo
ANIMAL FEED SCIENCE AND TECHNOLOGY, 165, 1-2, 61, 67, Apr. 2011, [Peer-reviewed]
English, Scientific journal

平坦地での昼夜低地放牧における泌乳牛の移動距離の変化　　　　　　　　　　　　　　　
森 光生, 遠藤哲代, 中辻浩喜, 上田宏一郎, 近藤誠司
北海道畜産学会報, 53, 43, 50, 2011, [Peer-reviewed]
English, Scientific journal

多様な植生をもつ林地に放牧した北海道和種馬のフィーディングステーション内における採食植物選択　　　　　　　　　　　　　　　
内山 知, 上田宏一郎, 中辻浩喜, 秦 寛, 近藤誠司
北海道畜産学会報, 53, 35, 41, 2011, [Peer-reviewed]
English, Scientific journal

Change in milk compositions from cows during transition period from barn feeding to grazing
三谷朋弘, 佐藤悠二, 上田宏一郎, 高橋誠, 中辻浩喜, 近藤誠司
北海道畜産学会報, 53, 29, 34, 2011, [Peer-reviewed]
English, Scientific journal

Effect of Set Stocking and Rotational Grazing by Lactating Dairy Cows on Sward Structure, Herbage Production and Utilization
Endo Tetsushiro, Mitani Tomohiro, Takahashi Makoto, Ueda Koichiro, Nakatsuji Hiroki, Kondo Seiji
Japanese Journal of Grassland Science, 55, 1, 9, 14, Japanese Society of Grassland Science, 2009, [Peer-reviewed]
Japanese, Scientific journal, Under set stocking (S) and rotational grazing (R) by lactating dairy cows, effects of these grazing systems on sward structure, herbage production and utilization were examined at the same stocking rate. Two paddocks of 0.83 ha of grass-clover mixed pasture were assigned two treatments. Two different groups of each 5 lactating dairy cows were grazed on each pasture. Mean sward height during the grazing period was lower in S than R (P<0.05). Grass leaf mass in S was higher than that of post-grazing in R (P<0.05), whereas daily herbage regrowth did not differ between the treatments. The amount of dead material in S was higher than that of pre-grazing in R (P<0.05), and nutritive value of herbage in S decreased in summer. Daily herbage DM intake per cow in S tended to be higher than R in May and June due to large amount of herbage allowance, and consequently total herbage utilization during the grazing period in S was higher than R (11.2 vs. 7.0t DM/ha). Herbage utilization during the grazing period under set stocking would be no less than that of rotational grazing, although the amount of dead materials increased and nutritive value tended to decrease in set stocking through summer.

反芻胃でのタンパク質と炭水化物の分解同期化を考慮した放牧乳牛に対する併給飼料の給与法　　　　　　　　　　　　　　　
三谷朋弘, 遠藤哲代, 高橋 誠, 上田宏一郎, 中辻浩喜, 近藤誠司
栄養生理研究会報, 52, 1, 9, 2009, [Peer-reviewed]
Japanese, Scientific journal

Fiber digestion in various segments of the hindgut of horses fed grass hay or silage
Makoto Miyaji, Koichiro Ueda, Yasuo Kobayashi, Hiroshi Hata, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 79, 3, 339, 346, Jun. 2008, [Peer-reviewed]
English, Scientific journal

Mean retention time of digesta in the different segments of the equine hindgut
Makoto Miyaji, Koichiro Ueda, Hiroki Nakatsuji, Teruo Tomioka, Yasuo Kobayashi, Hiroshi Hata, Seiji Kondo
ANIMAL SCIENCE JOURNAL, 79, 1, 89, 96, Feb. 2008, [Peer-reviewed]
English, Scientific journal

Influence of equine conformation on rider oscillation and evaluation of horses for therapeutic riding
Akihiro Matsuura, Emiko Ohta, Koichiro Ueda, Hiroki Nakatsuji, Seiji Kondo
Journal of Equine Science, 19, 1, 9, 18, 2008, [Peer-reviewed]
English, Scientific journal

The Relationship between Change of Ruminal Particle and Eating and Ruminating Activity in Sheep Offered Hay Ad Libitum
IZUMI Kenichi, SUZUKI Tomoyuki, UEDA Yasuko, UEDA Koichiro, OKUBO Masahiko
Nihon Chikusan Gakkaiho, 78, 4, 427, 433, Japanese Society of Animal Science, 25 Nov. 2007, [Peer-reviewed]
Japanese, Scientific journal, The relationship between rumen fill and eating and rumination activity was evaluated using four rumencannulated sheep offered alfalfa hay (ALF) or grass hay (GR) twice a day. Ruminal digesta samplings were obtained before feeding (0 h), immediately after the first meal (FM), and at 4 and 8 h after feeding. The particle size distribution of rumen digesta was determined (LP : >5.60 mm ; MP : 5.60-1.18 mm ; SP : 1.18-0.30 mm ; FP : 0.30-0.047 mm ; and SOL : <0.047 mm). Although dry matter (DM) intake of the first meal was not different between ALF and GR, total DM intake for ALF was significantly higher than that for GR (P<0.05). Total eating time did not differ between the diets ; however, the number of meals for ALF was significantly greater than that for GR (P<0.05). Total rumination time and the duration of the rumination period for GR were significantly longer than for ALF (P<0.05). Therefore, the length of rumination time per kg of DM intake for ALF was significantly shorter than that for GR (P<0.05). The amount of ruminal DM contents at FM was quite similar in the two diets. The percentage of LP sharply increased at FM in GR. The change of the pool size of large particles consisting of LP and MP after feeding was similar in both diets. It was concluded that the amount of digesta in rumen signaled the end of first meal.

Effects of grass height at the start of grazing on herbage intake and milk production under rotational grazing by lactating dairy cows
Nakatsuji, H, Nishimichi, Y, Yayota, M, Takahashi, M, Ueda, K, Kondo, S, Okubo, M
Grassland Science, 52, 175, 180, 2006, [Peer-reviewed]
English, Scientific journal

Effects of pre-feeding of a corn silage-based supplement on the feed intake, milk production and nitrogen utilization of grazing dairy cows
Tomohiro Mitani, Makoto Takahashi, Koichiro Ueda, Hiroki Nakatsuji, Seiji Kondo
Animal Science Journal, 76, 5, 453, 460, Oct. 2005, [Peer-reviewed]
English, Scientific journal

Effects of supplementary corn silage on the feed intake and milk production of time-restricted grazing dairy cows
Tomohiro Mitani, Makoto Takahashi, Koichiro Ueda, Hiroki Nakatsuji, Seiji Kondo, Masahiko Okubo
Animal Science Journal, 76, 4, 331, 337, Aug. 2005, [Peer-reviewed]
English, Scientific journal

Effect of Stocking Rate on Soil Animal and Microorganisms, Inorganic Nitrogen Contents in Soil, Herbage Production and Nitrogen Intake by Dairy Cows.
高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司
日本草地学会誌, 51, 2, 157, 162, Japanese Society of Grassland Science, Jul. 2005, [Peer-reviewed]
Japanese, Under rotational grazing by dairy cows, effect of stocking rate on soil animal, soil microorganism, inorganic nitrogen contents in soil, herbage production and nitrogen intake were evaluated using five perennial ryegrassdominant pastures. Each pasture was grazed at once every fifteen days from early July to early October. The stocking rate of each pasture was 10, 20, 30, 40 and 50cow-hr/ha/day, respectively. In stocking rate 10-40 cow-hr/ha/day, the number of soil animals and herbage regrowth tended to increase with increasing the stocking rate, and consequently, herbage production and nitrogen intake increased, although soil microorganisms and inorganic nitrogen contents in soil had little differences. However, in stocking rate 50cow-hr/ha/day, herbage production and nitrogen intake were lower than in stocking rate 40cow-hr/ha/day, because herbage regrowth was lower than stocking rate 40 cow-hr/ha/day, and the number of soil animals and inorganic nitrogen contents in soil were the lowest in all stocking rate-treatment.

Intestinal flow and digestibility of trans fatty acids and conjugated linoleic acids (CLA) in dairy cows fed a high-concentrate diet supplemented with fish oil, linseed oil, or sunflower oil
JJ Loor, K Ueda, A Ferlay, Y Chilliard, M Doreau
ANIMAL FEED SCIENCE AND TECHNOLOGY, 119, 3-4, 203, 225, Apr. 2005, [Peer-reviewed]
English, Scientific journal

Effect of pre-grazing feeding of a non-fibrous carbohydrate on feed intake, milk production and nitrogen utilization　　　　　　　　　　　　　　　
Tomohiro Mitani, Junki Honma, Tetsushiro Endo, Koichiro Ueda, Hiroki Nakatsuji, Seiji Kondo
Tomohiro Mitani, Junki Honma, Tetsushiro Endo, Koichiro Ueda, Hiroki Nakatsuji, Seiji Kondo, 31, 37, 2005
English

Comparison of disease occurrence between grazing and zero-grazing dairy cows at northern area in Hokkaido.
TAKAHASHI M., MISAKI T., UEDA K., NAKATUJI H., SHUKUNOBE T., KONDO S.
Japanese Journal of Livestock Management, 40, 4, 155, 160, Japanese Soceity of Livestock Management, 2005, [Peer-reviewed]
Japanese, Scientific journal, To evaluate for an effect of grazing on a health in dairy cattle, the veterinary records from Agricultural Cooperation were analyzed with milk production records and feeding styles with or without grazing for each dairy farms at northern area in Hokkaido, Japan. The veterinary records and milk production performance for each farm were from Research Center of Agriculture and Science in this area. Number of cattle kept, area of grassland, grazing or zero-grazing were surveyed by a postal questionnaire method for all dairy farms, about 100, in this area. Forty-six questionnaires had been obtained. In these farms, means of milk yield, number of milking cows, area of grazing pastures and number of medical treatments by veterinarians were 8,127.2 kg/305d, 71.7 cows, 8.6 ha and 1.2 time/year, respectively. The number of medical treatments by veterinarians/cow/year were positively related to the milk yield /cow/305d. (P<0.05) and negatively related to the area of grassland/farm (P<0.05). From this 46,32 farms were picked up for further analysis. Grazing were used in 24 farms, in which 7 farms were of all-day-grazing except milking time (group G), 17 were grazed their cattle during day time (group TG). Remained 9 had kept their animals in their cow-shed for a whole day (group B). There was no statistical difference of milk yield/cow among groups. The number of medical treatments (/cow/year) for milk organs by veterinarians was a little high in the group G and treatment frequencies for a foot and hoof were relatively low in groups G and B, though those differences among groups were not significant. Frequency of veterinary treatments (/cow/year) for conception, calving and reproductive organs was lower in group G (0.22) than groups TG (0.41) and B (0.42) significantly (P<0.05).

High-concentrate diets and polyunsaturated oils alter trans and conjugated isomers in bovine rumen, blood, and milk　　　　　　　　　　　　　　　
Loor, J. J, Ferlay, A, Ollier, A, Ueda, K, Doreau, M, Chilliard, Y
Journal of Dairy Science, 33, 3986, 3999, 2005, [Peer-reviewed]
English, Scientific journal

Short communication: Diurnal profiles of conjugated linoleic acids and trans fatty acids in ruminal fluid from cows fed a high concentrate diet supplemented with fish oil, linseed oil, or sunflower oil
JJ Loor, K Ueda, A Ferlay, Y Chilliard, M Doreau
JOURNAL OF DAIRY SCIENCE, 87, 8, 2468, 2471, Aug. 2004, [Peer-reviewed]
English, Scientific journal

Biohydrogenation, duodenal flow, and intestinal digestibility of trans fatty acids and conjugated linoleic acids in response to dietary forage : concentrate ratio and linseed oil in dairy cows
JJ Loor, K Ueda, A Ferlay, Y Chilliard, M Doreau
JOURNAL OF DAIRY SCIENCE, 87, 8, 2472, 2485, Aug. 2004, [Peer-reviewed]
English, Scientific journal

ウマにおける消化管内飼料片の粒度分布と繊維成分含量　　　　　　　　　　　　　　　
上田宏一郎, 宮地 慎, 小林泰男, 秦 寛, 近藤誠司, 大久保正彦
北海道畜産学会報, 46, 79, 82, 2004, [Peer-reviewed]
Japanese, Scientific journal

Chewing Activity, Particle Size Distribution of Feces and Total Tract Mean Retention Time of Digesta in Horses Fed Timothy Hay or Silage
宮地慎, 上田宏一郎, 山田文啓, 小林泰男, 秦寛, 中辻浩喜, 近藤誠司
日本畜産学会報, 74, 4, 567, 572, 2004, [Peer-reviewed]
Japanese, Scientific journal

Effect of linseed oil supplementation on ruminal digestion in dairy cows fed diets with different forage: Concentrate ratios
K Ueda, A Ferlay, J Chabrot, JJ Loor, Y Chilliard, M Doreau
JOURNAL OF DAIRY SCIENCE, 86, 12, 3999, 4007, Dec. 2003, [Peer-reviewed]
English, Scientific journal

Effect of mastication on degradation of orchardgrass hay stem by rumen microbes: fibrolytic enzyme activities and microbial attachment
J Pan, S Koike, T Suzuki, K Ueda, Y Kobayashi, K Tanaka, M Okubo
ANIMAL FEED SCIENCE AND TECHNOLOGY, 106, 1-4, 69, 79, Apr. 2003, [Peer-reviewed]
English, Scientific journal

Effects of urea infused into the rumen on liquid- and particle-associated fibrolytic enzyme activities in steers fed low quality grass hay
J Pan, T Suzuki, S Koike, K Ueda, Y Kobayashi, K Tanaka, A Okubo
ANIMAL FEED SCIENCE AND TECHNOLOGY, 104, 1-4, 13, 27, Feb. 2003, [Peer-reviewed]
English, Scientific journal

Continuous monitoring of oxygen consumption in sheep head and estimation of energy expenditure from oxygen consumption　　　　　　　　　　　　　　　
Higuchi, K, Nishida, T, Enishi, O, Purnomoadi, A, Ueda, K, Terada, F
Bulletin of National Institute of Livestock and Grassland Science, 4, 7, 13, 2003, [Peer-reviewed]
English, Research institution

グラスサイレージを給与したウマにおける自由採食量，消化率および採食行動
宮地 慎, 上田宏一郎, 秦 寛, 塙 友之, 近藤誠司, 大久保正彦
日本畜産学会報, 74, 213, 219, 2003, [Peer-reviewed]
Japanese, Scientific journal

Postprandial changes in particle associated ruminal bacteria in sheep fed ammoniated rice straw
ASM Selim, J Pan, T Suzuki, K Ueda, Y Kobayashi, K Tanaka
ANIMAL FEED SCIENCE AND TECHNOLOGY, 102, 1-4, 207, 215, Dec. 2002, [Peer-reviewed]
English, Scientific journal

Effect of Litter Size and Maternal Malnutrition to the Hormone Secretion, Blood Flow of Uterine Artery and Nutrient Uptake by the Gravid Uterus in Late Pregnant Goats.
NISHIDA Takehiro, HIGUCHI Koji, UEDA Koichiro, KURIHARA Mitsunori, PURNOMOADI Agung, SHIBATA Masaki, TERADA Fuminori
Nihon Chikusan Gakkaiho, 73, 2, 265, 271, Japanese Society of Animal Science, 2002, [Peer-reviewed]
English, Scientific journal, The maternal plasma hormone and metabolites concentration, blood flow and net nutrient uptake by gravid uterus with different litter size were observed using 10 Saanen goats under maternal malnutrition. Surgery was done under general anesthesia at 105 days of pregnancy. The ultrasonic flow probe was surgically fitted around the uterine artery. Heparinized catheters were inserted into the uterine vein and carotid artery. Uterine blood flow was measured continuously for 24 h at 1 min interval and blood samples were collected every 3 h at an average of 119.0 (single, n=4), 113.5 (twin, n=4) and 121.5 (triplet, n=2) days of pregnancy. As percentage of requirement (maintenance+pregnancy), metabolizable energy intake was 56.4% (single), 59.4% (twin) and 71.4% (triplet). Retention energy in the triplet pregnant goats were lowest because the heat production was significantly (P<0.01) greater than in the single or twin pregnant goats. Plasma flow rate in the uterine artery, net glucose uptake by the gravid uterus, plasma glucose and urea nitrogen concentrations in the triplet pregnant goats were higher than in the single or twin pregnant goats. There were no clear differences in plasma free fatty acid concentration among each litter size. Molar ratio of plasma insulin and glucagon tended to be lower in the triplet pregnant goats. Our results suggest that the triplet pregnant goats could adapt to the energy deficit by increased secretion of glucagon to maintain glucose supply for fetuses. And furthermore, results showed that the techniques used in the present experiment would contribute to an accurate determination of nutrient uptake by gravid uterine tissues in ruminants.

ウシの反芻時咀嚼による飼料片微細化の経時推移
鈴木知之, 潘 軍, 上田宏一郎, 田中桂一, 大久保正彦
日本畜産学会報, 72, 343, 350, 2001, [Peer-reviewed]
Japanese, Scientific journal

A method for estimating the rate of size reduction, passage and fermentation of ruminal particles of sheep
Ueda, K, Ichinohe, T, Okubo, M, Asahida, Y
Animal Science Journal, 72, 4, 306, 314, Japanese Society of Animal Science, 2001, [Peer-reviewed]
English, Scientific journal, This study attempted to develop a method for quantifying dynamics of particulate matter in the rumen of sheep fed on alfalfa hay at hourly intervals. The four compartments model for four size particulate fractions (large particle (LP):>5, 600, medium particle (MP): 5, 600-1, 180, small particle(SP): 1, 180-300, fine particle (FP): 300-47μm) in the rumen that has multiple pathways of size reduction, fermentation and passage was assumed. The respective rate constants were estimated by applying the in situ method and rare earth markers technique to each ruminal particulate fractions. The fermentation rate of each particulate fraction could be estimated from in situ disappearance curves. The rate of disappearance and the rate of size reduction of multiple pathways were able to be estimated by non-linear regression fitting to the theoretical equations from the dynamics model. The extent of fitting of the changes of markers in particulate fractions to the functions was enough to estimate the rate of disappearance and size reduction of ruminal particulate fractions. The rates of size reduction were 1.55 (LP→MP), 1.06 (LP→SP), 1.94 (LP→FF), 1.76 (MP→SP), 0.46 (MP→FP) and O.84%/h (SP→FP). The rates of fermentation were 1.47 (LP), 0.90 (MP), 0.08 (SP) and 1.19%/h (FP). The rates of passage were 1.82 (SP) and 3.94%/h (FP).

Distribution of microbial mass and fibrolytic enzyme activities in different size of feed particles from rumen contents of sheep
Pan, J, Suzuki, T, Ueda, K, Tanaka, K, Okubo, M
Animal Science Journal, 72, 209, 217, 2001, [Peer-reviewed]
English, Scientific journal

Influence of fiber fermentation, size reduction and passage of ruminal particles on fiber digestibility in sheep fed hays
Ueda, K, Ichinohe, T, Tamura, T, Okubo, M, Asahida, Y
Animal Science Journal, 72, 198, 208, 2001, [Peer-reviewed]
English, Scientific journal

Diurnal changes in the distribution of ruminal bacteria attached to feed particles in sheep fed hay once daily
J Pan, T Suzuki, K Ueda, K Tanaka, M Okubo
ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 13, 12, 1708, 1716, Dec. 2000, [Peer-reviewed]
English, Scientific journal

Relationship between Comminution of Feed Particles during Rumination and Fiber Fermentation in Cattle
SUZUKI Tomoyuki, PAN Jun, IZUMI Kenichi, UEDA Yasuko, UEDA Kouichirou, TANAKA Keiichi, OKUBO Masahiko
日本畜産學會報 = The Japanese journal of zootechnical science, 71, 9, J331, J337, 25 Aug. 2000, [Peer-reviewed]
Japanese, Scientific journal

反芻胃内飼料片付着微生物量およびin situ NDF消失率に及ぼす飼料片の粒度および給与乾草の影響　　　　　　　　　　　　　　　
潘 軍, 鈴木知之, 上田宏一郎, 田中桂一, 大久保正彦
北海道畜産学会報, 42, 19, 24, 2000, [Peer-reviewed]
Japanese, Scientific journal

Relationship Between Voluntary Intake of Rapping Rollbale Silage of Italian ryegrass in Dairy Cattle and Chemical Compositions, Retention Time in the Rumen, Digestibility and Digestion rate
AMARI Masahiro, UMEDA Taketoshi, UEDA Koichiro, MASAKI Shigehiko, TERADA Fuminori, ABE Akira
Japanese Journal of Grassland Science, 46, 3, 254, 260, Japanese Society of Grassland Science, 2000, [Peer-reviewed]
Japanese, Scientific journal, Two experiments were carried out to study the effects of characteristics of feed and animal condition on voluntary intake. The voluntary feed intake was measured as dry matter intake (DMI) with four dairy cows fed rapping roll-bale Silage of four Italian ryegrass (IRGS) ad libitum. The digestibility of dry matter (DM) and organic cell wall (OCW), and the rate of degradation of OCW in the rumen of the IRGS were determined using in vitro method. Mean of DMI per day and DMI per metabolic body weight of four IRGS ranged from 6.3 to 9.4 kg/day, from 54.2 to 79.8 g/kg^<0.75>, respectively. The DMI per day of IRGS in dairy cows was highly correlated with OCW, low digestible fraction of OCW (organic b fraction : Ob), sum of organic cellular contents (OCC) and high digestible fraction of OCW (organic a fraction : Oa) (OCC+Oa), neutral detergent fiber (NDF) and acid detergent lignin (ADL). The DMI per day can be predicted from the following equations; DMI =-0.257×OCW +23.69 (r=0.987), DMI=-0.162×Ob+16.34 (r=0.995), DMI= 0.214×(OCC+0a)-0.34 (r= 0.995), DMI =-0.258×NDF+23.35 (r=0.996), DMI =-1.047×ADL+13.96 (r=1.000). In addition, the DMI per day of IRGS in dairy cows was highly corrlated with retention time in the rumen, digestibility of each chemical compositions and the rate of degradation of fiber in the rumen. Similar values were observed in DMI per metabolic body weight. From those results, it was cleared that each factor examined in this study affets on voluntary feed intake.

近赤外分光法による牛乳中の窒素成分の推定　　　　　　　　　　　　　　　
アグン・プルノモアディ, ケサブクマール・バタジョ, 野中 最子, 樋口 浩二, 上田 宏一郎, 永西 修, 西田 武弘, 栗原 光規, 寺田 文典
Animal Science Journal, 70, 5, 343, 348, John Wiley & Sons Australia, Ltd, Sep. 1999
English

Milk nitrogenous components as measured by near infrared spectroscopy-study on the repeatability for predicting different population samples
Purnomoadi, A, Batajoo, K. K, Nonaka, I, Higuchi, K, Ueda, K, Enishi, O, Nishida, T, Kurihara, M, Terada, F
Animal Science Journal, 70, 5, 343, 348, 1999, [Peer-reviewed]
English, Scientific journal

Influence of feed source on determination of fat and protein in milk by near-infrared spectroscopy
A Purnomoadi, KK Batajoo, K Ueda, F Terada
INTERNATIONAL DAIRY JOURNAL, 9, 7, 447, 452, 1999, [Peer-reviewed]
English, Scientific journal

Effects of Dietary Protein Degradability on Nitrogen and Energy Utilization of Lactating Cows
NAKAI Fuminori, HIRASHIMA Yoshinori, UEDA Koichiro, PURNOMOADI Agung, HIGUCHI Koji, ENISHI Osamu, TERADA Fuminori
日本畜産学会報, 70, 10, 390, 396, 1999, [Peer-reviewed]
Japanese, Scientific journal

乾草の自由摂取量と反芻胃内飼料片の粒度別動態との関連　　　　　　　　　　　　　　　
上田 宏一郎
北海道大学農学部邦文紀要, 20, 1, 57, 1997, [Peer-reviewed]
Japanese, Research institution

Efficiency of chewing for breakdown of large particles during eating and ruminating in sheep fed hays
Ueda, K, Ichinohe, T, Tamura, T, Okubo, M, Asahida, Y
Animal Science and Technology (Japan), 68, 917, 925, 1997, [Peer-reviewed]
English, Scientific journal

自由採食下のめん羊における採食・反芻行動と反芻胃内粒度別飼料片の動態の関連
泉 賢一, 岡部靖子, 福間 哲, 上田宏一郎, 大久保正彦
北海道畜産学会報, 38, 94, 97, 1996, [Peer-reviewed]
Japanese, Scientific journal

刈取り時期の異なるオーチャードグラス乾草およびアルファルファ乾草を給与しためん羊における反芻胃内容物粒度別飼料片の繊維成分含量
上田宏一郎, 一戸俊義, 田村 忠, 大久保正彦, 朝日田康司
日本畜産学会報, 66, 949, 956, 1995, [Peer-reviewed]
Japanese, Scientific journal

Effect of orchardgrass growth stage on pool size and kinetics of digesta particles in the rumen of sheep
Ichinohe, T, Tamura, T, Ueda, K, Okubo, M, Asahida, Y
Asian-Australasian Journal of Animal Science, 8, 267, 273, 1995, [Peer-reviewed]
English, Scientific journal

刈取り時期, 草種の異なる乾草を給与しためん羊における反芻胃および十二指腸内容物の粒度分布
上田宏一郎, 一戸俊義, 田村 忠, 大久保正彦, 朝日田康司
北海道畜産学会報, 36, 41, 44, 1994, [Peer-reviewed]
Japanese, Scientific journal

The particle size distributions of ingested boli, rumen digesta and feces in sheep fed orchardgrass hay harvested at different stages of maturity
Ichinohe, T, Tamura, T, Ueda, K, Okubo, M, Asahida, Y
Animal Science and Technology (Japan), 65, 8, 701, 708, Japanese Society of Animal Science, 1994, [Peer-reviewed]
English, Scientific journal, The changes in particle size distribution of ingested boli, rumen digesta and feces were investigated with four rumen cannulated sheep receiving 3 varieties of orchardgrass hay (H1, H2 and H3) once a day. The hay was harvested at three stages of maturity: pre-heading; a 1:1 heading to blooming ratio; and a 1:1 blooming to fruiting ratio for H1, H2, and H3, respectively. The digestion coefficients and voluntary intake for hay decreased with advancing stage of maturity. The sheep were fed 1300g of the unchopped hay for 3h a day and represent-ative samples of total rumen digesta were collected at 3, 7, 11, 15, 19 and 24h after feeding. The particle size distribution of every sample was determined by the wet-sieving technique and expressed as the dry matter proportion of large particles (LP, retained on 5600, 2360 and 1180μm sieves), small particles (SP, passed through a 1180μm sieve and retained on 47μm sieves) and soluble fraction (SOL, passed through a 47μm sieve) to total sample dry matter. The percentage of LP in the ingested boli was higher for H1 than for H2 or H3. The percentage of the boli-particles retained on a 5600μm sieve was prominently higher for H1, as compared to that for the other hay varieties. The percentage of LP in the rumen digesta decreased from 46% at 3h after feeding to 13% at 24h for H1, 39 to 14% for H2 and 34 to 8% for H3, respectively. However, the percentage of ruminal LP at each sampling time tended to be higher for H1 than for H2 and H3, although the difference was not so marked. The percentage of SP increased from 28% at 3h after feeding to 47% at 24h for H1, 35 to 62% for H2 and 47 to 68% for H3, respectively. The percentage of ruminal SP was higher (P<0.05) for H2 and H3 than for H1 at every sampling time. The percentage of SOL in the rumen digesta tended to increase with time after feeding (from 26% at 3h to 41% at 24h) for H1, whereas it showed no change with time and accounted for about 25% of total digesta for H2 and H3. The percentages of LP in feces were very low for the three hay varieties. The percentage of SP in feces for H3 was higher (P<0.05) than for either H1 or H2, and inversely. SOL was lower (P<0.05) for H3 than for the other hay varieties.

刈取り時期の異なるオーチャードグラス乾草を1日1回給与しためん羊における反芻胃内容物量の経時変化
一戸俊義, 田村 忠, 上田宏一郎, 大久保正彦, 朝日田康司
日本綿羊研究会誌, 29, 45, 50, 1992, [Peer-reviewed]
Japanese, Scientific journal

集約放牧酪農経営における搾乳ロボット導入時の技術的課題
上田 宏一郎, 畜産の情報, 345, 345, 51, 64, Jul. 2018
Japanese

放牧乳牛に補給する濃厚飼料の朝夕の給与配分は放牧草の摂取量を変化させる
上田 宏一郎, 畜産技術, 749, 749, 9, 14, Oct. 2017
畜産技術協会, Japanese, Introduction commerce magazine

泌乳初期乳牛における濃厚飼料中デンプン源の高消繊維への代替がエネルギーバランスおよび排卵機能回復に及ぼす影響
BO MIN, MASAKI TOMOYUKI, NAGANO MASASHI, YANAGAWA YOJIRO, MITANI TOMOHIRO, UEDA KOICHIRO, KONDO SEIJI, 北海道畜産草地学会報, 3, 45, 53, 31 Mar. 2015
Japanese

微生物が支える健全なルーメン発酵―良質粗飼料の食い込み，反すうのレベル向上を　　　　　　　　　　　　　　　
上田宏一郎, デーリィマン, 65, 7, 40, 41, 2015
Japanese, Introduction commerce magazine

ホルスタイン牛における分娩後のビートパルプ給与が繁殖成績に及ぼす影響
正木智之, MIN Bow, 上田宏一郎, 柳川洋二郎, 永野昌志, 日本獣医学会学術集会講演要旨集, 157th, 455, 11 Aug. 2014
Japanese

大麦もしくはコーンの朝夕の給与配分が放牧泌乳牛のN利用および乳生産に及ぼす影響
堀口康太, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 109th, 30, 27 Mar. 2008
Japanese

放牧乳牛における乾物摂取量の季節間変動と反芻胃内容物動態の関連
上田宏一郎, 三谷朋弘, 高橋誠, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 109th, 30, 27 Mar. 2008
Japanese

放牧牛の食草移行動に対する群構成頭数の影響―Feeding Stationレベルからの解析―
多田慎吾, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, Anim Behav Manag, 44, 1, 118, 119, 25 Mar. 2008
日本家畜管理学会, Japanese

放牧地における発情泌乳牛の行動解析
近藤創, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, Anim Behav Manag, 44, 1, 116, 117, 25 Mar. 2008
日本家畜管理学会, Japanese

放牧強度が等しい定置放牧における面積および頭数の違いがdefoliationのfrequencyおよびintensityに及ぼす影響
遠藤哲代, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 54, 334, 335, 25 Mar. 2008
Japanese

泌乳牛の定置放牧と輪換放牧の違いが牧草生産量および利用草量の経年変化に及ぼす影響
遠藤哲代, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 西道由紀子, 八代田真人, 日本草地学会誌, 54, 126, 127, 25 Mar. 2008
Japanese

放牧地へのバイオガスプラント消化液の年3回施用が牧草生産量および利用草量に及ぼす影響
森本陽子, 松永知美, 高橋誠, 鈴木啓太, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 54, 128, 129, 25 Mar. 2008
Japanese

面積および地形の異なる傾斜定置放牧地における泌乳牛の移動速度および移動傾斜角度
中辻浩喜, 森光生, 遠藤哲代, 高橋誠, 上田宏一郎, 近藤誠司, 日本草地学会誌, 54, 348, 349, 25 Mar. 2008
Japanese

ペレニアルライグラス主体草地に放牧した乳牛における反芻胃内窒素利用の日内および季節間変動
上田宏一郎, 三谷朋弘, 高橋誠, 中辻浩喜, 近藤誠司, 日本草地学会誌, 54, 130, 131, 25 Mar. 2008
Japanese

道内定置放牧酪農家の牧草生産量および利用草量の比較
遠藤哲代, 森光生, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 浜辺一貴, 花田正明, 北海道草地研究会報, 42, 32, 15 Mar. 2008
Japanese

バイオガスプラント消化液の前年散布量および時期の違いが1番草サイレージの化学成分および発酵品質に及ぼす影響
森本陽子, 松永知美, 高橋誠, 鈴木啓太, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道草地研究会報, 42, 28, 15 Mar. 2008
Japanese

乳牛放牧地におけるバイオガスプラント消化液の施用量の違いが草地構造,牧草生産量および利用草量に及ぼす影響
高橋誠, 森本陽子, 松永知美, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道草地研究会報, 42, 27, 15 Mar. 2008
Japanese

Influence of Equine Conformation on Rider Oscillation and Evaluation of Horses for Therapeutic Riding
MATSUURA Akihiro, OHTA Emiko, UEDA Koichiro, NAKATSUJI Hiroki, KONDO Seiji, Journal of equine science, 19, 1, 9, 18, 01 Mar. 2008
日本ウマ科学会, English

朝夕放牧前の濃厚飼料給与量配分が泌乳牛の窒素利用および乳生産に及ぼす影響
上田宏一郎, 堀口康太, 三谷朋弘, 高橋誠, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 108th, 14, 14, 26 Sep. 2007
(公社)日本畜産学会, Japanese

朝夕放牧前の圧片コーン給与量が乳牛の反芻胃内NH₃‐N濃度及び窒素利用に及ぼす影響
堀口康太, 三谷朋弘, 上田宏一郎, 高橋誠, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 108th, 14, 26 Sep. 2007
Japanese

放牧前の圧片コーン給与が乳牛の採食行動および反芻胃内容物動態に及ぼす影響
三谷朋弘, 上田宏一郎, 高橋誠, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 62nd, 30, 24 Aug. 2007
Japanese

WSC含量の異なるオーチャードグラス草地に放牧した乳牛の採食量および採食行動
上田宏一郎, 三谷朋弘, 堀口康太, 高橋誠, 山田敏彦, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 62nd, 29, 24 Aug. 2007
Japanese

放牧草WSC含量の差が乳牛の反芻胃内性状に及ぼす影響
本間純記, 上田宏一郎, 高橋誠, 山田敏彦, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 107th, 35, 35, 27 Mar. 2007
(公社)日本畜産学会, Japanese

時間制限放牧下の乳牛における反芻胃内容物量の日内変化および季節間差異
上田宏一郎, 本間純記, 高橋誠, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 107th, 35, 35, 27 Mar. 2007
(公社)日本畜産学会, Japanese

放牧牛の食草移動経路―放牧頭数,牧区面積,割当面積の影響および草高との関係―
多田慎吾, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 107th, 160, 27 Mar. 2007
Japanese

放牧牛の食草移動経路―個体の追従移動と放牧頭数との関連―
多田慎吾, 近藤創, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, Animal Behaviour and Management, 43, 1, 60, 61, 25 Mar. 2007
日本家畜管理学会, Japanese

Lameness scoreによる放牧およびフリーストール飼養泌乳牛の歩行動作の比較
栢原裕之, 遠藤哲代, 高橋誠, 上田宏一郎, 中辻浩喜, 宿野部猛, 近藤誠司, Anim Behav Manag, 43, 1, 58, 59, 25 Mar. 2007
日本家畜管理学会, Japanese

年間を通じた作付面積割合の違いが土地からの乳生産に及ぼす影響―夏季放牧時におけるコーンサイレージ主体併給粗飼料利用の検討―
星勝也, 中辻浩喜, 遠藤哲代, 高橋誠, 上田宏一郎, 近藤誠司, 日本草地学会誌, 53, 98, 99, 24 Mar. 2007
Japanese

バイオガスプラント消化液の散布量および時期の違いがサイレージの化学成分および発酵品質に及ぼす影響
森本陽子, 高橋誠, 鈴木啓太, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 53, 198, 199, 24 Mar. 2007
Japanese

バイオガスプラント消化液の散布量および散布方法の違いが土壌動物数および牧草生産量に及ぼす影響
高橋誠, 鈴木啓太, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 53, 196, 197, 24 Mar. 2007
Japanese

放牧強度が低く地形の異なる定置放牧地における草地構造と泌乳牛の利用場所の季節変化
遠藤哲代, 森光生, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 浜辺一貴, 河合正人, 花田正明, 日本草地学会誌, 53, 90, 91, 24 Mar. 2007
Japanese

放牧強度および開始時草高の異なる泌乳牛の定置放牧における放牧地からの乳生産の経年変化
中辻浩喜, 遠藤哲代, 星勝也, 西谷一哉, 多田慎吾, 本間純記, 三谷朋弘, 高橋誠, 上田宏一郎, 近藤誠司, 日本草地学会誌, 53, 96, 97, 24 Mar. 2007
Japanese

放牧強度および開始時草高の異なる泌乳牛の定置放牧における牧草の栄養価,生産量および利用草量の経年変化
遠藤哲代, 西谷一哉, 多田慎吾, 星勝也, 本間純記, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 53, 94, 95, 24 Mar. 2007
Japanese

面積および高低差の異なる定置放牧地における泌乳牛の移動距離
森光生, 遠藤哲代, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 浜辺一貴, 河合正人, 花田正明, 日本草地学会誌, 53, 92, 93, 24 Mar. 2007
Japanese

泌乳牛の定置放牧における放牧強度および開始時草高の違いが草地構造に及ぼす影響(3年次)
遠藤哲代, 星勝也, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道草地研究会報, 41, 59, 15 Mar. 2007
Japanese

放牧地へのバイオガスプラント消化液の施用が牧草生産量および利用草量に及ぼす影響
森本陽子, 高橋誠, 鈴木啓太, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道草地研究会報, 41, 52, 15 Mar. 2007
Japanese

泌乳牛の冬季コーンサイレージ主体飼養時における濃厚飼料の給与量が土地からの乳生産に及ぼす影響
星勝也, 中辻浩喜, 高橋誠, 上田宏一郎, 近藤誠司, 北海道畜産学会大会講演要旨, 61st, 23, 28 Aug. 2006
Japanese

放牧牛の食草移動経路に対する牧区面積および放牧頭数の影響
多田慎吾, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 61st, 26, 28 Aug. 2006
Japanese

放牧草成分の日内および季節変化が乳牛の反芻胃内性状に及ぼす影響
本間純記, 上田宏一郎, 高橋誠, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 61st, 25, 28 Aug. 2006
Japanese

泌乳牛の定置放牧における放牧強度および開始時草高の違いが牧草の栄養価,生産量および利用草量に及ぼす影響 (第2年次)
遠藤哲代, 星勝也, BAWM Saw, 栢原裕之, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 52, 76, 77, 26 Mar. 2006
Japanese

放牧乳牛の喫食および咀嚼動作に及ぼす草高の影響
上田宏一郎, 三谷朋弘, 高橋誠, 中辻浩喜, 近藤誠司, 日本草地学会誌, 52, 74, 75, 26 Mar. 2006
Japanese

泌乳牛の定置放牧における放牧強度および開始時草高の違いが放牧地から乳生産に及ぼす影響
星勝也, 遠藤哲代, BAWM Saw, 栢原裕之, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 52, 78, 79, 26 Mar. 2006
Japanese

ウマの盲腸および腹側結腸における内容物通過動態
宮地慎, 水野浩二, 富岡輝男, 松井朗, 上田宏一郎, 中辻浩喜, 秦寛, 近藤誠司, 日本畜産学会大会講演要旨, 106th, 40, 40, 20 Mar. 2006
(公社)日本畜産学会, Japanese

朝もしくは夕の時間制限放牧下における乳牛の反すう胃内性状と採食量
本間純記, 上田宏一郎, 高橋誠, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 106th, 28, 20 Mar. 2006
Japanese

時間制限放牧下における乳牛の反すう胃内容物量の変化
上田宏一郎, 本間純記, 高橋誠, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 106th, 29, 20 Mar. 2006
Japanese

乳牛の放牧地およびタイストール繋留時における伏臥および起立動作の違い(日本家畜管理学会・応用動物行動学会合同2006年度春季研究発表会)
近藤 誠司, 三谷 朋弘, 高橋 誠, 上田 宏一郎, 中辻 浩喜, 日本家畜管理学会誌・応用動物行動学会誌, 42, 1, 40, 41, 2006
日本家畜管理学会, Japanese

放牧牛の食草移動経路に対するフラクタル解析の応用(日本家畜管理学会・応用動物行動学会合同2006年度春季研究発表会)
多田 慎吾, 高橋 誠, 上田 宏一郎, 中辻 浩喜, 近藤 誠司, 日本家畜管理学会誌・応用動物行動学会誌, 42, 1, 44, 45, 2006
日本家畜管理学会, Japanese

北海道東部・北部草地酪農地域における放牧および舎飼い乳牛の疾病治療記録の解析(日本家畜管理学会・応用動物行動学会合同2006年度春季研究発表会)
三谷 朋弘, 高橋 誠, 三嵜 健司, 上田 宏一郎, 中辻 浩喜, 近藤 誠司, 日本家畜管理学会誌・応用動物行動学会誌, 42, 1, 48, 49, 2006
日本家畜管理学会, Japanese

泌乳牛の定置放牧および輪換放牧における年間牧草利用量と放牧地由来の乳生産量
西谷一哉, 遠藤哲代, SAW Bawm, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 105th, 43, 43, 25 Aug. 2005
(公社)日本畜産学会, Japanese

飼料摂取量がウマの各消化管部位での繊維消化率,消化管内容物滞留時間および繊維分解酵素活性に及ぼす影響
宮地慎, 上田宏一郎, 富岡輝男, 中辻浩喜, 秦寛, 近藤誠司, 日本畜産学会大会講演要旨, 105th, 9, 9, 25 Aug. 2005
(公社)日本畜産学会, Japanese

放牧牛の移動とバイト数および圧縮草高との関連
多田慎吾, 遠藤哲代, 三谷朋弘, 高橋誠, 西谷一哉, 星勝也, 本間純記, 近藤智子, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 105th, 44, 44, 25 Aug. 2005
(公社)日本畜産学会, Japanese

一放牧期における泌乳牛へのNFC飼料の放牧前給与がN代謝及び乳生産に及ぼす影響
本間純記, 三谷朋弘, 遠藤哲代, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 105th, 41, 41, 25 Aug. 2005
(公社)日本畜産学会, Japanese

泌乳牛の定置放牧における放牧強度および開始時草高の違いが放牧草摂取量,乾物消化率および乳生産に及ぼす影響
星勝也, 遠藤哲代, SAW Bawm, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 105th, 43, 43, 25 Aug. 2005
(公社)日本畜産学会, Japanese

泌乳牛の定着放牧における放牧強度および開始時草高の違いが草高の分布の季節変化に及ぼす影響
遠藤哲代, 多田慎吾, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 105th, 9, 25 Aug. 2005
Japanese

異なる放牧時季における圧片コーンの放牧前給与が乳牛の反すう胃内性状およびN利用に及ぼす影響
三谷朋弘, 本間純記, 遠藤哲代, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 105th, 9, 25 Aug. 2005
Japanese

泌乳牛の定置放牧における放牧強度および開始時草高の違いが草地構造に及ぼす影響
遠藤哲代, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道草地研究会報, 39, 27, 31 Mar. 2005
Japanese

乳牛放牧地における放牧方式の違いが土壌動物・微生物,土壌中無機態窒素濃度および牧草生産に及ぼす影響
高橋誠, 遠藤哲代, 三谷朋弘, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 51, 112, 113, 26 Mar. 2005
Japanese

泌乳牛の定置放牧における放牧強度および開始時草高の違いが放牧地からの乳生産に及ぼす影響
中辻浩喜, 遠藤哲代, BAWM Saw, 三谷朋弘, 高橋誠, 上田宏一郎, 近藤誠司, 日本草地学会誌, 51, 108, 109, 26 Mar. 2005
Japanese

泌乳牛の定置放牧における放牧強度および開始時草高の違いが牧草の栄養価,生産量および利用草量に及ぼす影響
遠藤哲代, BAWM Saw, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本草地学会誌, 51, 106, 107, 26 Mar. 2005
Japanese

bm3型トウモロコシサイレージを給与した泌乳牛における反すう胃内容物消失動態
UEDA KOICHIRO, OSHITA TOMOKO, KUME SHIN'ICHI, KONDO SEIJI, 日本畜産学会大会講演要旨, 104th, 74, 20 Mar. 2005
Japanese

生牧草給与時における圧片コーンの給与時間の違いが乳牛の窒素利用に及ぼす影響
三谷朋弘, 遠藤哲代, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 104th, 52, 20 Mar. 2005
Japanese

ウマの体格の違いが騎乗者の振動に与える影響
松浦晶央, 太田恵美子, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 104th, 150, 20 Mar. 2005
Japanese

ウマの体格および騎乗者の振動とRDAインストラクターによる障害者用乗馬としての評価との関係
松浦晶央, 太田恵美子, 上田宏一郎, 中辻浩喜, 近藤誠司, Anim Behav Manag, 41, 1, 94, 95, 15 Mar. 2005
Japanese

bm3型トウモロコシサイレージ摂取牛の産乳性と第一胃液性状
大下友子, 野中和久, 久米新一, 小酒井貴晴, 上田宏一郎, 三木一嘉, 青木康浩, 秋山典昭, 研究成果情報 北海道農業, 2004, 2005

bm3型トウモロコシサイレージ摂取牛の産乳性と第一胃液性状
大下友子, 野中和久, 久米新一, 小酒井貴晴, 上田宏一郎, 三木一嘉, 青木康浩, 秋山典昭, 畜産草地研究成果情報, 4, 2005

II-16 ウマの体格および騎乗者の振動とRDAインストラクターによる障害者用乗馬としての評価との関係(日本家畜管理学会・応用動物行動学会合同2005年度春季研究発表会)
松浦 晶央, 太田 恵美子, 上田 宏一郎, 中辻 浩喜, 近藤 誠司, 日本家畜管理学会誌・応用動物行動学会誌, 41, 1, 94, 95, 2005
日本家畜管理学会, Japanese

草地型酪農地域の乳牛放牧地における窒素施肥量の違いが土壌動物・微生物および土壌中無機態窒素濃度に及ぼす影響
高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 60th, 25, 20 Aug. 2004
Japanese

輪喚および定置放牧下の泌乳牛におけるフィーディングステーション滞在時間の解析
上田宏一郎, 倉田雅代, 遠藤哲代, 三谷朋弘, 高橋誠, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 60th, 34, 20 Aug. 2004
Japanese

泌乳牛の定置放牧と輪換放牧の違いが放牧地からの乳生産に及ぼす影響
中辻浩喜, 遠藤哲代, 倉田雅代, 三谷朋弘, 高橋誠, 上田宏一郎, 近藤誠司, Grassl Sci, 50, 128, 129, 26 Mar. 2004
Japanese

乳牛放牧地における放牧強度の違いが土壌動物・微生物,土壌中無機態窒素濃度および牧草生産に及ぼす影響
高橋誠, 遠藤哲代, 倉田雅代, 三谷朋弘, 上田宏一郎, 中辻浩喜, 近藤誠司, Grassl Sci, 50, 136, 137, 26 Mar. 2004
Japanese

泌乳牛の定置放牧と輪換放牧の違いが牧草栄養価および放牧地からの養分摂取量に及ぼす影響
遠藤哲代, 倉田雅代, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, Grassl Sci, 50, 126, 127, 26 Mar. 2004
Japanese

北海道北部草地酪農地域の獣医診療記録からみた放牧乳牛の疾病発生状態
近藤誠司, 三崎健司, 高橋誠, 上田宏一郎, 中辻浩喜, 宿野部猛, 日本畜産学会大会講演要旨, 103rd, 95, 95, 20 Mar. 2004
(公社)日本畜産学会, Japanese

放牧泌乳牛における併給飼料給与時刻とFeeding Station(FS)レベルでみた採食行動との関係
倉田雅代, 遠藤哲代, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 103rd, 92, 20 Mar. 2004
Japanese

コーンサイレージの放牧前および後給与が放牧泌乳牛の摂取量,乳生産および窒素出納に及ぼす影響
三谷朋弘, 倉田雅代, 遠藤哲代, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 日本畜産学会大会講演要旨, 103rd, 33, 20 Mar. 2004
Japanese

放牧乳牛のフィーディングステーション滞在時間の解析と採食戦略(乳牛・ヒツジの行動・生理と管理)(日本家畜管理学会・応用動物行動学会合同 2004年度春季研究発表会)
上田 宏一郎, 倉田 雅代, 高橋 誠, 中辻 浩喜, 近藤 誠司, 日本家畜管理学会誌, 40, 1, 68, 69, 2004
日本家畜管理学会, Japanese

フランスの人とチーズと郷土と　　　　　　　　　　　　　　　
上田宏一郎, 北海道畜産学会報, 46, 93, 99, 2004
Japanese, Introduction scientific journal

ヒツジ頭部における酸素消費量の連続測定ならびにエネルギー消費量の推定
樋口 浩二, 西田 武弘, 永西 修, Purnomoadi A., 上田 宏一郎, 寺田 文典, 畜産草地研究所研究報告, 4, 7, 14, Dec. 2003
動静脈差法による家畜臓器のエネルギー消費量測定系を開発する目的で，2頭のヒツジの頚動脈と頚静脈の酸素濃度差ならびに頚動脈血流量を連続的に測定した。ヒツジにはあらかじめ左側に頚動脈ループの作成，右側頚動脈に超音波血流計センサーの装着をおこない，日本飼養標準に基づいてイタリアンライグラス乾草をTDN維持要求量を満たすように給餌し，7日間の予備試験の後，6日間の本試験をおこなった。本試験前半3日間は，頚動脈ループと頚静脈に血液ガスセンサーを挿入して酸素濃度を10秒間隔で測定し，血流量は1分間の平均値を記録した。同時にビデオカメラでヒツジの採食・反すう行動を観察した。後半3日間は開放式呼吸試験装置で全身の酸素消費量を測定した。その結果，頚動脈ならびに頚静脈酸素濃度は，1日を通じてほぼ一定の値を示した。血中酸素濃度には動物の行動の影響は見られず，見かけの酸素濃度差に変化はなかった。しかし頚動脈血流量は採食・反すう行動に伴って大きく変動し，採食時では安静時に比べて約2.5倍に増加した。単位時間あたりの頭部のエネルギー消費量は，安静時に比べて採食・反すう時に増加し，その増加は反すう時よりも採食時のほうが大きかった。, 農業技術研究機構畜産草地研究所, English

アルファルファサイレージもしくはグラスサイレージTMRを給与した泌乳初期乳牛における反すう胃内滞留時間
UEDA KOICHIRO, OSHITA TOMOKO, KUME SHIN'ICHI, NAKAMURA MASATO, 日本畜産学会大会講演要旨, 102nd, 16, 15 Sep. 2003
Japanese

放牧泌乳牛のコーンサイレージ併給時における放牧草由来窒素摂取量の違いが窒素およびエネルギー出納に及ぼす影響
三谷 朋弘, 上田 宏一郎, 中辻 浩喜, 近藤 誠司, 日本畜産学会大会講演要旨, 102nd, 18, Sep. 2003
(公社)日本畜産学会, Japanese

泌乳牛の定置放牧における放牧開始時草高の違いが牧草栄養価および放牧地からの養分摂取量に及ぼす影響
遠藤哲代, 倉田雅代, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 59th, 33, 22 Aug. 2003
Japanese

草地型酪農地域における放牧管理の違いと土壌動物,土壌微生物および放牧地土壌成分の関連
高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 59th, 32, 22 Aug. 2003
Japanese

放牧乳牛におけるfeeding station滞在時間の分布とその経時的変化
倉田雅代, 遠藤哲代, 三谷朋弘, 高橋誠, 上田宏一郎, 中辻浩喜, 近藤誠司, 北海道畜産学会大会講演要旨, 59th, 21, 22 Aug. 2003
Japanese

フランスの酪農－マシフ・セントラルの酪農とチーズ生産－　　　　　　　　　　　　　　　
上田 宏一郎, 酪総研・世界の窓, 8, 10, 2003
Japanese, Introduction commerce magazine

傾斜地定置放牧区における搾乳牛のFeeding Stationと食草行動
近藤誠司, 西道由紀子, 上田宏一郎, 中辻浩喜, 大久保正彦, Grassl Sci, 48, 134, 135, 21 Sep. 2002
日本草地学会, Japanese

時間制限放牧下の泌乳牛群における各個体の併給粗飼料採食時間帯と放牧草採食量
重田多恵子, 上田宏一郎, 中辻浩喜, 近藤誠司, 大久保正彦, 日本畜産学会大会講演要旨, 99th, 96, 25 Aug. 2001
Japanese

ストリップ放牧した搾乳牛におけるFeeding Stationの間隔とFeeding Station行動の連続性
近藤誠司, 重田多恵子, 西道由紀子, 上田宏一郎, 中辻浩喜, 大久保正彦, 日本畜産学会大会講演要旨, 99th, 96, 25 Aug. 2001
Japanese

ストリップ放牧した搾乳牛のFeeding Stationにおける食草行動
近藤誠司, 吉羽由紀子, 重田多恵子, 西道由紀子, 上田宏一郎, 中辻浩喜, 大久保正彦, 日本畜産学会大会講演要旨, 98th, 177, 20 Mar. 2001
Japanese

Relationship between Comminution of Feed Particles during Rumination and Fiber Fermentation in Cattle
SUZUKI Tomoyuki, PAN Jun, IZUMI Kenichi, UEDA Yasuko, UEDA Kouichirou, TANAKA Keiichi, OKUBO Masahiko, Animal science journal, 71, 9, J331, J337, 25 Aug. 2000
日本畜産学会, Japanese

泌乳牛における放牧地草の摂取割合が窒素出納および乳生産効率におよぼす影響
上田宏一郎, 西道由紀子, 八代田真人, 中辻浩喜, 近藤誠司, 大久保正彦, Grassl Sci, 46, 314, 315, 19 Jul. 2000
日本草地学会, Japanese

畑地型および草地型酪農地域における土地からの家畜生産
近藤誠司, 藤芳雅人, 八代田真人, 上田宏一郎, 中辻浩喜, 大久保正彦, 日本畜産学会大会講演要旨, 96th, 107, 20 Sep. 1999
Japanese

放牧泌乳牛の窒素出納に及ぼす牧草蛋白質の反すう胃内分解性の季節変動の影響
上田宏一郎, 西道由紀子, 八代田真人, 中辻浩喜, 近藤誠司, 大久保正彦, 日本畜産学会大会講演要旨, 96th, 34, 20 Sep. 1999
Japanese

草地型酪農地域における牛乳生産システムの土地利用方式からみた解析
八代田真人, 藤芳雅人, 上田宏一郎, 中辻浩喜, 近藤誠司, 大久保正彦, 北海道畜産学会大会講演要旨, 55th, 18, 18 Aug. 1999
Japanese

Effect of grass height in the start of grazing under intensive grazing of lactating cow on CP and NDF intake from pasture.
八代田真人, 西道由紀子, 谷川珠子, 王徳利, 時田光明, 上田宏一郎, 中辻浩喜, 近藤誠司, 大久保正彦, Grassl Sci, 45, 44, 45, 20 Mar. 1999
Japanese

放牧泌乳牛の飼料給与面からの暑熱対策について　　　　　　　　　　　　　　　
上田宏一郎, 雪種ニュース, 226, 6, 1999
Japanese, Introduction commerce magazine

もみ殻の肉牛用飼料への利用--とくに黒毛和種牛の肥育における稲わらとの代替の可能性
上田 宏一郎, 畜産の研究, 52, 2, 236, 242, Feb. 1998
養賢堂, Japanese

もみ殻の肉牛飼料への利用－とくに黒毛和種牛の肥育における稲わらとの代替の可能性－　　　　　　　　　　　　　　　
上田宏一郎, 畜産の研究, 52, 6, 11, 1998
Japanese, Report scientific journal

高泌乳牛における代謝エネルギー測定データの蓄積を目指して
上田宏一郎, 畜産技術, 509, 509, 17, 19, 1997
畜産技術協会, Japanese, Report scientific journal

動物衛生学第2版
獣医衛生学教育研修協議会
文永堂出版, Mar. 2024, 9784830032912, xxviii, 467p, Japanese, [Contributor]

新しい子牛の科学　　　　　　　　　　　　　　　
家畜感染症学会, 第4章 離乳期の生理と管理 4-1 離乳期における発育と栄養生理的変化
緑書房, Mar. 2021, [Contributor]

畜産学概論
小林泰男, 第3章 栄養（ウシ）
朝倉書店, Jan. 2021, 9784254450316, vii, 184p, Japanese

飼料設計・給餌の基本と実践ー粗飼料生産から牛群マネジメントまで　　　　　　　　　　　　　　　
上田宏一郎, 第Ⅱ章 飼料設計の実践と応用 7パターン別の飼料設計④～放牧飼養型
デーリィマン社, Oct. 2020

動物衛生学　　　　　　　　　　　　　　　
上田 宏一郎, 第10章 生産動物の衛生管理 6 特用家畜の衛生管理 5)めん羊と山羊
文栄堂出版, Apr. 2018, [Contributor]

日本飼養標準・乳牛（2017年版）　　　　　　　　　　　　　　　
上田 宏一郎, 飼料中の繊維
中央畜産会, Nov. 2017, [Joint work]

デーリィ・プロフェッショナル vol.4　　　　　　　　　　　　　　　
上田 宏一郎
デーリィ・ジャパン社, Feb. 2016, [Joint work]

乳牛栄養学の基礎と応用　　　　　　　　　　　　　　　
上田 宏一郎, 脂質
デーリィ・ジャパン社, 2010

子牛の科学　　　　　　　　　　　　　　　
上田 宏一郎, 第一胃の発達と離乳
チクサン出版社, 2009

新版 酪農用語解説 第２版　　　　　　　　　　　　　　　
上田 宏一郎
デーリィ・ジャパン社, 2008, [Joint work]

日本飼養標準・乳牛（2006年版）　　　　　　　　　　　　　　　
上田 宏一郎, 飼料中の繊維
中央畜産会, 2007, [Joint work]

ルーメン６～ルーメン機能を理解する実践栄養学～　　　　　　　　　　　　　　　
上田 宏一郎, 反芻を科学する
デーリィ・ジャパン社, 2001, [Joint work]

マメ科牧草の草生割合がマメ科採食量に及ぼす影響　　　　　　　　　　　　　　　
上田宏一郎
強い馬づくりのための生産育成技術講座2023, 08 Nov. 2023, Invited oral presentation
[Invited]

生涯生産性を高める 哺育・育成からのスマート酪農を目指して　　　　　　　　　　　　　　　
上田宏一郎
2020年度大動物臨床研究会第10回東京シンポジウム, 27 Feb. 2021, Nominated symposium
[Invited]

生涯生産性を高める 哺育・育成からのスマート酪農を目指して　　　　　　　　　　　　　　　
上田宏一郎
北海道アグリ・フードフォーラム2021, 18 Feb. 2021, Nominated symposium
[Invited]

搾乳ロボットを利用した放牧酪農経営における乳牛の草地利用と課題　　　　　　　　　　　　　　　
上田 宏一郎
道北地域考える酪農セミナー～道北地域での豊かな暮らしのために～, 08 Nov. 2018, Japanese, Keynote oral presentation
[Invited], [Domestic Conference]

健全な乳牛を育成するための新たな飼養管理技術の開発　　　　　　　　　　　　　　　
上田 宏一郎
オランダ経済使節団来日記念セミナー「酪農・馬鈴薯セクターのコスト削減と効率化―日蘭協力の可能性を模索して」, 17 Oct. 2018, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

Timing strategy for concentrate supplementation in grazing dairy cows　　　　　　　　　　　　　　　
UEDA Koichiro
The 7th Japan-China-Korea Grassland Conference, 10 Jul. 2018, English, Invited oral presentation
[Invited], [International presentation]

新しい北海道の酪農～生産寿命を延ばす哺乳・育成の可視化技術の開発を目指して～　　　　　　　　　　　　　　　
上田 宏一郎
平成30年度GTBH総会・理事会 記念講演会, 21 Jun. 2018, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

草からの乳生産量　　　　　　　　　　　　　　　
上田 宏一郎
創地農業21第34回グラスファーミングスクール, 16 May 2017, Japanese, Keynote oral presentation
[Invited], [Domestic Conference]

放牧家畜の食草行動　　　　　　　　　　　　　　　
上田宏一郎
アフリカの牧畜地域で活用しうるICT関連技術に関する研究集会, 25 Mar. 2014, Japanese, Invited oral presentation
[Invited], [Domestic Conference]

泌乳牛の放牧における基礎栄養学　　　　　　　　　　　　　　　
上田宏一郎
創地農業21第26回グラスファーミングスクール, 04 Jun. 2013, Japanese, Keynote oral presentation
[Invited], [Domestic Conference]

放牧時の栄養管理　　　　　　　　　　　　　　　
上田宏一郎
北海道公共牧場会平成22年度春季研修会, 13 Apr. 2010, Japanese, Keynote oral presentation
[Invited], [Domestic Conference]

基本的な放牧時の栄養学　　　　　　　　　　　　　　　
上田宏一郎
第3回天北放牧ネットテクニカルセミナー, 13 Sep. 2008, Japanese, Keynote oral presentation
[Invited], [Domestic Conference]

畜牧体系科学　　　　　　　　　　　　　　　
Apr. 2016 - Present

一般教育演習「私たちの生活と家畜」　　　　　　　　　　　　　　　
北海道大学教養課程

循環型社会形成学　　　　　　　　　　　　　　　
北海道大学大学院農学院

畜牧体系学特論演習　　　　　　　　　　　　　　　
北海道大学大学院農学院

畜牧体系学特論　　　　　　　　　　　　　　　
北海道大学大学院農学院

家畜生産学特論演習　　　　　　　　　　　　　　　
北海道大学大学院農学院

家畜生産学特論　　　　　　　　　　　　　　　
北海道大学大学院農学院

北海道農業概論／HUSTEP講義　　　　　　　　　　　　　　　
北海道大学農学部

牧場実習　　　　　　　　　　　　　　　
北海道大学農学部

家畜生産実習　　　　　　　　　　　　　　　
北海道大学農学部

畜牧体系学実験　　　　　　　　　　　　　　　
北海道大学農学部

畜牧体系学　　　　　　　　　　　　　　　
北海道大学農学部

家畜生産論Ⅱ　　　　　　　　　　　　　　　
北海道大学農学部

家畜生産論Ⅰ　　　　　　　　　　　　　　　
北海道大学農学部

放牧地における植生分布および被食エリアの可視化技術の開発　　　　　　　　　　　　　　　
JRA競走馬総合研究所受託研究
Apr. 2025 - Mar. 2028
日本中央競馬会競走馬総合研究所

群飼育哺育牛の健全な発育と管理省力化を両立させる体調不良個体AI検出システムの開発　　　　　　　　　　　　　　　
戦略的スマート農業技術の開発・改良
Apr. 2023 - Mar. 2026
生物系特定産業技術研究支援センター, 北海道大学大学院農学研究院, Principal investigator

放牧地におけるイネ科およびマメ科牧草の草生割合が採食割合ならびに発育に及ぼす影響　　　　　　　　　　　　　　　
JRA競走馬総合研究所受託研究
Apr. 2022 - Mar. 2025
上田宏一郎
JRA競走馬総合研究所, 北海道大学大学院農学研究院

群飼育下の乳用雌哺育牛から体調不良個体を早期発見するリアルタイムモニタリング技術の開発　　　　　　　　　　　　　　　
イノベーション創出強化研究推進事業
May 2020 - Mar. 2023
国立研究開発法人農業・食品産業技術総合研究機構 生物系特性産業技術センター, 基礎ステージ, 北海道大学大学院農学研究院, Principal investigator

Effects of feeding management on bovine fertility and ovarian function: relationship between lipid profile and developmental competence of oocytes
Grants-in-Aid for Scientific Research
01 Apr. 2019 - 31 Mar. 2022
Nagano Masashi
Oocyte triacylglycerols (TAG) were significantly higher in cows in the early lactation stage than in heifers. Plasma free fatty acids (FFA) were high at 20-30 after days in milk (DIM). Oocyte FFA positively correlated with plasma FFA, but negatively correlated with the mean energy balance and 21 days before oocyte collection. Elevated oocyte FFA in cows in the early ostpartum period under intensive feeding management suggested that oocytes were at a high risk of FFA lipotoxicity.
In addition, the effects modulated (5-20%) oxygen environments on the in vitro development of bovine oocyte-cumulus-granulosa cell complexes (OCGCs) cultured in the presence or absence of an antioxidant (astaxanthin: Ax) were evaluated by using gas permeable culture wells. The presence of Ax in the 5-20% O2 condition promoted oocyte nuclear maturation and development of OCGCS.
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B), Kitasato University, 19H03117

日本短角種去勢牛の２シーズン放牧肥育における放牧管理改善による肉質向上　　　　　　　　　　　　　　　
令和３年度公益財団法人伊藤記念財団助成
Apr. 2021 - Mar. 2022
上田宏一郎・呉 成真
公益財団法人伊藤記念財団, 北海道大学大学院農学研究院, Principal investigator

乳牛預託哺育・育成牧場の飼養管理実態調査事業　　　　　　　　　　　　　　　
畜産振興事業
Apr. 2019 - Mar. 2022
上田 宏一郎
日本中央競馬会, Principal investigator, Competitive research funding

牧草サイレージの高品質化に向けたバイオガスプラント消化液施用量の評価　　　　　　　　　　　　　　　
令和2年度公益財団法人伊藤記念財団助成
Apr. 2020 - Mar. 2021
三谷朋弘, 上田宏一郎
公益財団法人伊藤記, 北海道大学大学院農学研究院, Coinvestigator

ワイン搾汁残渣タンニンを利用したラム肉パストラルフレーバー低減技術の確立　　　　　　　　　　　　　　　
平成30年度公益財団法人伊藤記念財団助成
Jun. 2018 - Mar. 2020
上田 宏一郎
公益財団法人伊藤記念財団, Principal investigator, Competitive research funding

集約放牧酪農経営における搾乳ロボット導入時の技術的課題の明確化　　　　　　　　　　　　　　　
平成29年度畜産関係学術研究委託調査
Jun. 2017 - Mar. 2018
上田 宏一郎
農畜産業振興機構, Principal investigator, Competitive research funding

Analysis of behavior of grazing cows by the movable body recognition and the analysis system using an automatic following system
Grants-in-Aid for Scientific Research
2009 - 2011
NAKATSUJI Hiroki, KONDO Seiji, UEDA Koichiro, MITANI Tomohiro
We tried to determine the moving locus of grazing cows by high resolution network cameras installed in pasture, which recorded the behavior of cows, the digital images were transmitted to a host personal computer by wireless LAN, and automatic image processing was made. As the result of trial and error, it was suggested to be possible to identify the place of cows grazed, depending on the conditions of cameras installed in pasture. Although the possibility of such a system configuration was recognized, the number of camera, and the improvement in accuracy of picture integrated processing with the host computer was remained as a future subject.
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (C), 21580321

Acquisition of crop growth information by airborne laser scanner
Grants-in-Aid for Scientific Research
2009 - 2011
TANI Hiroshi, WANG Xiufeng, NAKATUJI Hiroki, ARAKI Hajime, UEDA Koichiro
Various crops such as paddy rice, field crops, forage crops, and pasture grass were observed with the aerial laser scanner (ALS), concurrently with the investigation of the growth of these crops on the ground. The ALS data obtained and the results of the investigation were analyzed to estimate the heights of the crops adn crop canopy structures. From the relationships between the measured heights and the ALS-based mean height values for seven types of crops, it was shown that the measured heights of crops with vertically growing thin leaves, such as paddy rice, were different from those of crops with horizontally growing leaves, such as corn. This is because of the fact that the entry depth of the laser pulse into the communities depends on the grass type of the crops. We were also able to estimate three-dimensional structure of the crop canopy by examining the spatial distribution of the laser pulses to be emitted from aircraft.
Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B), Hokkaido University, 21380159

放牧牛の採食動作の生体音響解析による牧草採食量および栄養価の推定　　　　　　　　　　　　　　　
科学研究費補助金 萌芽研究
Apr. 2005 - Mar. 2007
上田 宏一郎
科学技術振興機構, Principal investigator, Competitive research funding

乳牛の反芻胃内容物の消失における給与飼料間の相互作用に関する研究　　　　　　　　　　　　　　　
研究助成（個人研究）
Apr. 1998 - Mar. 1999
上田 宏一郎
栗林育英学術財団, Principal investigator, Competitive research funding

競走馬総合研究所外部評価委員会　　　　　　　　　　　　　　　
01 Jun. 2017 - Present
Advisor
Others

放牧酪農環境総合スマート管理サービス専門家指導員　　　　　　　　　　　　　　　
21 Aug. 2017 - 30 Oct. 2018
Advisor
Research advise
ファームエイジ

第34回グラスファーミングスクール　　　　　　　　　　　　　　　
16 May 2017 - 18 May 2017
Lecturer, Advisor, Demonstrator

第27回グラスファーミングスクール　　　　　　　　　　　　　　　
27 May 2014
Advisor, Demonstrator
Visiting lecture
創地農業21

第26回グラスファーミングスクール　　　　　　　　　　　　　　　
13 Apr. 2013 - 15 Apr. 2013
Lecturer, Advisor, Demonstrator
Visiting lecture
創地農業21