飼料としての牛糞の細胞内容物画分と細胞壁構成物質画分への分画における中性デタージェント法と酵素法の比較

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タイトル別名
  • Comparison of Neutral Detergent Method and Enzymatic Method for the Fractionation into Cellular Contents Fraction and Cell Wall Fraction in Cattle Feces as Feeds
  • シリョウ ト シテ ノ ギュウフン ノ サイボウ ナイヨウブツ カクブン ト

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Experiments were conducted to obtain preliminary knowlege toward evaluating chemical and nutritive characteristics of cattle feces as feeds with the feed analysis, based on fractionation into a cellular contents fraction (CC) and cell wall fraction (CW). Cattle feces samples were two of feces from breeding cows fed high roughage diet and two of feces from fattening sters fed a high concentrate diet. The CW content determined by the neutral detergent (ND) method was lower than that determined by enzymatic method involving digestion with the enzyme, pronase. ND treatment removed nitrogenous materials, lignin and ash from feces samples more than did pronase treatment. Digestibility of dry matter in cattle feces samples determined by in vitro method where incubation with rumen microorganisms were carried out after ND treatment was much higher than that determined by in vitro method where incubations with rumen microorganisms were carried out after enzymatic treatment. The result of the in vitro trial suggested that ND treatment removed cell wall materials that could not be digested by rumen microorganisms more than pronase tveatment. It was considered that the enzymatic method was more suitable for the fractionation into CC and CW than the ND method in the case of evaluating chenical and nutritive characteristics of cattle feces as feeds.

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  • 日本畜産学会報

    日本畜産学会報 59 (5), 402-406, 1988

    公益社団法人 日本畜産学会

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