草饲饲牛肉用英语怎么写

Grass feed beef

草饲饲牛肉───Grass feed beef

Yet the conversion of grass or grain to meat is nutritionally inefficient: it takes 10kg of feed to produce 1kg of beef.───可是从草料和谷物到肉的转化效率在营养上是非常低下的：出产1千克牛肉需要10千克的饲料。

produce 1kg of beef takes 10kg of grass or soya-based feed.───生产一公斤牛肉需要十公斤草或以大豆为原料的饲料。