When they're still young, he says, farmers toss animal waste in the ponds and allow the tilapia to feed on the algae bloom that follows.

它们还是鱼苗的时候，他说，农户会往鱼塘里扔动物粪便，并让罗非鱼以由此催生出的大片水藻为食。

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Upon how the animal waste effect the environment, this report describes a series of measures which acting on the feed and manure treatment to decrease environmental pollution.

本文在分析畜禽排泄物对环境影响的基础上，对饲料处理及排泄物处理等一系列减少环境污染的措施做了介绍。

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Strain 5088 was isolated from the bark, and could be used to turn the waste fibres from flax textile factory into the material which could be displaced as corn of domestic animal feed.

用平板分离法从树皮中选育出“5088号菌种”，使麻纺厂的废弃下脚料转化成可替代饲料中玉米成份的“媲谷菌饲”。

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As well as animal welfare concerns over rearing large numbers of farm animals in close proximity, the water use, farmland for animal feed, waste and greenhouse-gas emissions associated with meat production make it one of the most significant environmental problems in the world today.

CNN: Lab-grown meat gives food for thought

We feed them animal waste, and they convert it from manure to digested effluent, eating the carbohydrates and producing biogas that contains methane.

FORBES: Magazine Article

Food is donated to food banks and hunger relief organizations and other organic waste products are used to make animal feed, compost and even energy creation.

FORBES: Written by Melissa Hincha-Ownby