It comes after scientists found mixing some unusual foods into cattle and sheep feed could cut the stinky emissions from animals by as much as a quarter.
科学家发现，在牛羊饲料中加入一些不寻常的食物，可以将它们排放的废气减少四分之一。
Farm animals can also pollute water supplies. Animals like cattle, pigs, sheep and goats are often left to feed on grass in open fields bordered by streams or rivers.
农田动物也会污染水源。牛，猪，绵羊和山羊等动物通常在小溪或河边的广阔的草地上放牧。
The products of ruminant feed and cattle or sheep-derived feed from the enterprises and farms of 7 districts in Shaanxi province were detected by real-time PCR.
实时PCR对陕西省7个地市生产、经营和使用的反刍动物饲料产品和动物源性饲料产品（原料）进行了牛羊源成分检测调查。
Usual ways to improve utilization rate of coarse feeds are processing and treating, rational collocation of diets, increasing coarse feed intake for cattle and sheep.
常用的提高粗饲料利用率的方法有加工处理、合理搭配日粮、提高羊的粗饲料采食量等手段。
In the 5 batches unqualified products, 2 batches are concentrated feed for cattle and sheep, 3 batches are concentrated feed only for cattle;
而其中不合格的5批次产品，2批次为牛羊用浓缩饲料，3批次为牛用浓缩饲料。
In the 5 batches unqualified products, 2 batches are concentrated feed for cattle and sheep, 3 batches are concentrated feed only for cattle;
而其中不合格的5批次产品，2批次为牛羊用浓缩饲料，3批次为牛用浓缩饲料。
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