Livestock production makes use of products left behind during the manufacture of human plant foods, like citrus pulp and sugar beet, which could not otherwise contribute to the human food supply.

畜牧业生产是利用在人类植物食物制造的剩余产品，像柑橘渣和甜菜渣，而无法以其他方式促进人类的食物供应。

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Livestock production makes use of products left behind during the manufacture of human plant foods, like citrus pulp and sugar beet, which could not otherwise contribute to the human food supply.

畜牧业生产是利用在人类植物食物制造的剩余产品，像柑橘渣和甜菜渣，而无法以其他方式促进人类的食物供应。

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