促进畜禽生长，提高饲料转换率。
实际上，它们的身体将饲料转换为肉、脂肪、骨、皮的效率差异可能是令人惊讶的。
In fact the difference in how efficiently their bodies convert feed into meat, fat, bone and hide might be surprising.
试验表明不同营养配比的饲料，其饲料转换率有着较大的差异，会导致鱼体生长的显著差异。
The results show that the content of nutrition have distinct effect on feed coefficient rate and growth rate of turbot .
虽然它们吃掉大量的粮食饲料，直接与人类竞争食物，但是相对而言他们把饲料转换成肉的效率比较高，而且只产生很少的粪便。
While these eat a largely grain-based diet and thus compete directly with humans for food, they are relatively good at converting feed into flesh while producing little or no methane.
他说国会颁布的关于酒精燃料的法令促使农民种植更多的玉米来转换为生物燃料，其代价就是减少了饲料用玉米和其他粮食的产量。
He said Congressional mandates for ethanol would require farmers to grow more corn for conversion to biofuel, at the expense of feed corn and other food crops.
本课程探讨生质能转换成食品、饲料、能源及其他有用产品所利用之方法与流程。
This course deals with methodology and processes to convert biomass into food, feed, fuel and other useful products.
饲料喂养材料在干燥状态的转换区，以防止炉墙侵蚀。
The feed materials are fed in a dry state to the conversion zone in order to prevent erosion of the furnace walls.
酵母在智利原生平原雨林牛只饲料中进行木质的去木质素作用及真菌类转换等的相关研究。
A study of yeasts during the delignification and fungal transformation of wood into cattle feed in Chilean rain forest.
人工采摘桑叶制作纯桑叶饲料，成本高，始终未能把桑叶转换为可流通的商品禽畜饲料。
Feed purely made from mulberry leaves which are picked up by manpower is high in cost so that the mulberry leaves are still not transformed into commercial feed for the livestock in circulation.
人工采摘桑叶制作纯桑叶饲料，成本高，始终未能把桑叶转换为可流通的商品禽畜饲料。
Feed purely made from mulberry leaves which are picked up by manpower is high in cost so that the mulberry leaves are still not transformed into commercial feed for the livestock in circulation.
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