離乳子豚の消化率および窒素蓄積率に及ぼす寒冷の影響

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  • Effects of Cold on Digestibility and Nitrogen Metabolism in Weaned Piglets
  • リニュウ コブタ ノ ショウカリツ オヨビ チッソ チクセキリツ ニ オヨボス

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Twenty four post-weaning male Landrace piglets were used in three trials. The piglets were fed a starter diet which had low crude fiber content of 1.0%, gross energy content of 17.1kJ/g and crude protein content of 22.6%. Digestibility, energy and nitrogen metabolism of the piglets kept at 5°C were compared to the piglets at 25°C. The piglets fed similar amount of the diet at 5°C and 25°C in two trials. In another trial, the piglets kept at 5°C fed 48% higher amount of the diet compared with the piglets at 25°C. The results are summarized as follows. 1) Any changes of digestibilities of nutrients due to cold were not recognized ine very trials. 2) The piglets kept at 5°C decreased mean nitrogen retention per nitrogen intake to 45.3% compared with 59.7% at 25°C through the three trials. 3) Mean metabolizabilities of energy (ME/GE) through the three trials were significantly different with environmental temperature (87.1% at 5°C vs. 88.5% at 25°C, P<4.41), but the differece was extremely small.

収録刊行物

  • 日本畜産学会報

    日本畜産学会報 60 (9), 841-845, 1989

    公益社団法人 日本畜産学会

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