Publication Information

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'https://openalex.org/W2158687493', 'https://openalex.org/W2168110735', 'https://openalex.org/W2315479096', 'https://openalex.org/W4253586299', 'https://openalex.org/W586187287'], 'related_works': ['https://openalex.org/W4249176446', 'https://openalex.org/W2748952813', 'https://openalex.org/W2132898409', 'https://openalex.org/W2064362993', 'https://openalex.org/W2040058909', 'https://openalex.org/W2037631372', 'https://openalex.org/W2030889776', 'https://openalex.org/W1979139803', 'https://openalex.org/W1966775726', 'https://openalex.org/W1966504330'], 'abstract_inverted_index': {'分娩後の乳牛における主要な疾病の一つであるケトーシスは，他の疾病の発生リスクを増加させることで生産性を低下させる．乳牛において，飼料給与中の伏臥は種々の疾病の初期兆候であることが多い．本研究では，分娩前後の乳牛の伏臥頻度をモニタリングし，ケトーシスの発生を予測する方法の確立を試みた．2020年4-8月に分娩した乳牛（健常牛4頭とケトーシス発症牛4頭）を供試し，分娩前後2ヵ月において血液生化学検査と伏臥頻度の調査を行った．ケトーシス発症牛では，分娩後0-1ヵ月に肝機能の低下を示唆する血液性状の変化が，分娩前2-1ヵ月に伏臥頻度の増加が認められた．特に粗飼料給与後の伏臥割合は，分娩前2-1ヵ月においてケトーシス発症牛で健常牛の13.6倍となり，分娩後のケトーシス発症との関連性が考えられた．本研究により，分娩前の伏臥行動の観察に基づいてケトーシスの発症リスクを予測できる可能性が示された．': [0]}, 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