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Affiliation |
Faculty of Agriculture Region of Animal and Plant Biosciences |
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Title |
Associate Professor |
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Related SDGs |
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NISHIMURA Keiko
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Degree 【 display / non-display 】
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博士（農学） ( 2014.3 鹿児島大学 )
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修士（農学） ( 2003.3 鹿児島大学 )
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学士（農学） ( 2001.3 鹿児島大学 )
Papers 【 display / non-display 】
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酒粕あるいは酵母給与が黒毛和種肥育牛の飼料摂取量、飼料消化性、ルーメン発酵および血液性状に及ぼす影響 Reviewed
前田友香, 小松正尚, 小松智彦, 西村慶子, 水口人史, 庄司則章
日本畜産学会報 97 ( 1 ) 9 - 16 2026.2
Language：Japanese Publishing type：Research paper (scientific journal)
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Nishimura K., Terada F.
Animal Science Journal 96 ( 1 ) e70116 2025.12
Authorship：Lead author, Corresponding author Publishing type：Research paper (scientific journal) Publisher：Animal Science Journal
This study aimed to evaluate the effects of a fermented total mixed ration (TMR) on feed intake, digestibility, rumen fermentation, and milk production in dairy cows in a hot environment. The experiment was conducted twice, with four multiparous Holstein cows used in each trial. Fresh and fermented TMR were used as dietary treatments in a crossover experimental design. Fresh and fermented TMR had the same diet composition. Fresh TMR was prepared every morning. Fermented TMR was prepared by baling fresh TMR and sealing it with a bale wrapper, followed by storage outdoors. Dry matter intake and digestibility did not differ between groups. Cows fed fermented TMR showed increased intake and digestibility of crude protein and non-fiber carbohydrate. Rumen total volatile fatty acids and propionate concentration were higher in cows fed fermented TMR than in those fed fresh TMR. Milk yield tended to increase in the cows fed fermented TMR. These results indicated that feeding fermented TMR to dairy cows in a hot environment altered feed digestibility and rumen fermentation and increased milk production. Therefore, fermented TMR is a suitable feed for lactating cows in a hot environment and is an effective technology for heat management.
DOI： 10.1111/asj.70116
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Nishimura K., Hirabayashi H., Kawashima K., Okimura T., Suzuki A., Asakuma S., Isobe N., Obitsu T., Kushibiki S., Sugino T.
Journal of Dairy Science 108 ( 4 ) 4381 - 4389 2025.4
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of Dairy Science
Medium-chain fatty acids (MCFA) are rapidly utilized by the liver as an energy source. However, the effects of feeding MCFA to dairy cows during the transition period and the subsequent effect on postpartum performance is not clear. Therefore, the objective of this study was to evaluate the effects of MCFA supplementation on feed intake, rumen fermentation, blood profile, and milk production in dairy cows during their transition period. Twenty-one multiparity Holstein cows were randomly assigned to 2 dietary groups: one group received a diet supplemented with MCFA calcium salts (MCFA-Ca) from 3 wk relative to expected parturition to 5 wk postpartum (MCFA; n = 10), and the other group received the same diet without supplements (control; n = 11). Medium-chain fatty acid calcium salts containing 80% caprylic acid and 20% capric acid were added to the mixed diet at 1.5% DM. During the close-up period (from 3 wk relative to expected parturition until parturition), cows were fed a TMR with restricted intake to provide 100% of the metabolic energy requirement. Subsequently, the cows were fed a TMR ad libitum from parturition to 5 wk postpartum. Dry matter intake and BW did not differ throughout the experimental period between groups. Rumen fermentation and protozoa counts remained unaffected during the experimental period. Supplementation of MCFA had no effect on the plasma concentrations of nonesterified fatty acids and total ketone bodies in cows throughout the experimental period. Conversely, postpartum plasma glucagon concentration was higher in the MCFA group than in the control group, and milk yield tended to increase in the MCFA group. In conclusion, our results suggested that MCFA-Ca supplementation enhances the catabolic state by affecting pancreatic hormone secretion, resulting in an increase in milk yield during the fresh period without an excessive negative energy balance in dairy cows.
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初産牛における乾乳期短縮時の栄養強化が産乳と繁殖性に及ぼす影響 Reviewed
大澤玲, 眞鍋典義, 宮本剛志, 高松英里奈, 佐沢公子, 森川繁樹, 西村慶子, 高橋優希, 真貝拓三, 伊藤文彰, 野中最子, 田鎖直澄
家畜衛生学雑誌 50 ( 4 ) 253 - 263 2025.3
Language：Japanese Publishing type：Research paper (scientific journal)
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Effect of dry period shortening on lactation performance and reproductive measures in primiparous Holstein cows Reviewed
49 ( 4 ) 189 - 198 2024
Language：Japanese Publishing type：Research paper (scientific journal)
Presentations 【 display / non-display 】
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国産飼料を主体とした豚肉生産－飼養管理から官能評価までー Invited
西村慶子，前田友香
日本官能評価学会2024年大会 2024.11.9
Event date： 2024.11.9
Language：Japanese Presentation type：Oral presentation (invited, special)
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早期水稲収穫後の水田におけるイタリアンライグラスの品種比較
西村慶子，守倉梨佳，前田友香，荒川 明
第17回日本暖地畜産学会熊本大会 2024.10.27
Event date： 2024.10.26 - 2024.10.27
Language：Japanese Presentation type：Oral presentation (general)
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中鎖脂肪酸添加代用乳を用いた早期離乳プログラムへの酪酸添加が乳用雌子牛の血液および糞便性状に及ぼす影響
沖村朋子，近田邦利，大澤 玲，中村真紀，竹内拓朗，西村慶子，神藤 学，川嶋賢二，犬飼 愛，坂本和志，村山恭太郎，上野 豊，櫛引史郎，磯部直樹，杉野利久
日本畜産学会第128回大会 2021.3.28
Event date： 2021.3.27 - 2021.3.30
Presentation type：Poster presentation
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乳牛の初－２産間における乾乳期間とタンパク質強化の違いが血液性状とルーメン発酵に及ぼす影響
可知正行，大澤 玲，高橋優希，佐沢公子，高松英里奈，宮本剛志，森川繁樹， 西村慶子，真貝拓三，伊藤文彰，青木真理，菊 佳男，野中最子，田鎖直澄
日本畜産学会第128回大会 2021.3.28
Event date： 2021.3.27 - 2021.3.30
Presentation type：Poster presentation
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最大哺乳到達と離乳時期の早期化が乳用雌子牛の血液性状に及ぼす影響
近田邦利，中村真紀，大澤 玲，沖村朋子，竹内拓朗，西村慶子，辻乃莉美，川 嶋賢二，犬飼 愛，上野 豊，櫛引史郎，坂本和志，村山恭太郎，磯部直樹，杉野利久
日本畜産学会第128回大会 2021.3.28
Event date： 2021.3.27 - 2021.3.30
Presentation type：Poster presentation