To correct this problem, psychologist emphasize the significance of psychological weaning.

为解决这个问题，心理学家强调“心理断乳”的重要意义。

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Earlier weaning caused psychological, environmental and nutritional stress reactions in piglets, which induced diarrhea, dystrophia and slow growth.

早期断奶会使仔猪产生心理、环境和营养应激反应，引起仔猪腹泻、营养不良和生长迟滞等。

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Earlier weaning caused psychological, environmental and nutritional stress reactions in piglets, which induced diarrhea, dystrophia and slow growth.

早期断奶会使仔猪产生心理、环境和营养应激反应，引起仔猪腹泻、营养不良和生长迟滞等。

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