Two experiments involving 6 pigs (5weeks of age) were conducted to study the effect of environmental temperature on the nitrogen metabolism of the young pig. Two Large white pigs were kept at each of the psychrometric chambers of which temperatures were adjusted 33°C, 23°C and 7°C, respectively.
Relative humidity was almost maintained at 50%. A pelleted diet was given which contained about 20% of protein on a air dry-matter baisis.
1) The orders of weight gain during the experimental period(5 days) were as follows;
33°Clot>23°Clot>7°C lot for the limited-fed pigs and 7°Clot>33°Clot>23°Clot for the self-fed pigs.
2) On the self-feeding, the pigs kept at 33°C and 23°C ate around the same amount of feed, but the pigs kept at 7°C consumed about 1.5 times more feed than the others.
3) The apparent nitrogen digestibility and the apparent biological value fell at 7°C.

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[in Japanese]

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[in Japanese]

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