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'https://openalex.org/W2090732195', 'https://openalex.org/W2050779095', 'https://openalex.org/W1481008614'], 'abstract_inverted_index': {'泌乳牛の乳量,熱発生量などに及ぼす高温負荷ならびに乾草と濃厚飼料の給与比率の影響を検討する目的で,ホルスタイン種泌乳牛10頭を用い,5処理のスイッチバック法に従って実験を実施した.実験処理は,環境温度2水準(H:30°C,': [0], 'L:18°C,いずれも,相対湿度60%),乾草給与水準(C:0.9%,': [1], 'M:1.5%,': [2], 'R:2.1%,いずれも体重あたり乾物換算給与量)であり,濃厚飼料を補給してTDN量で日本飼養標準による要求量に適合させた.その結果,次のような知見を得た.1)': [3], '乾物およびTDN摂取量は高温時に減少したが,乾物消化率は上昇した.2)': [4], '体温および呼吸数は高温時に上昇,増加を示したが,上昇,増加率はM水準にくらべてC水準で小さかった.3)': [5], '熱発生量は処理間に有意差を認めなかった.しかし,高温時においては,M水準に採食後の熱増加が認められたのに対し,C水準では認められなかった.4)': [6], '乳量およびFCM量は高温時に約20%減少したが,その減少率はM水準にくらべC水準で小さく,また,粗効率においてもC水準の方が若干高い値を示した.5)': [7], '高温時には,熱発性量あたりのFCM量は有意に減少し,また,熱発生量とFCM量および組効率との間の相関係数も負の値を示した.6)': [8], '以上の結果から,高温時における乳量低下の防止には,無効な熱発生をできるだけ抑制するような飼料給与を行なうことが重要であると考えられる.': [9]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2332200013', 'counts_by_year': [{'year': 2017, 'cited_by_count': 1}, {'year': 2016, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 2}], 'updated_date': '2024-08-31T08:27:07.032387', 'created_date': '2016-06-24'}