Peri-natal environmental effects on maternal behaviour, pituitary and adrenal activation, and the progress of parturition in the primiparous sow
作者： S Jarvis , BT Reed , AB Lawrence , SK Calvert , J Stevenson
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摘要: Maternal behaviour in free-ranging sows is normally performed in an isolated nest that the sow has built during the pre-parturient period. Consequently there is much concern over the …
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