家畜目前排放的温室气体占到全球总数的百分之四，如果用新的饲料则可以将期减少到百分之三。

Farm animals currently produce four per cent of the world's total greenhouse gas emissions, and it's thought the new diets could cut that to three per cent.

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中国有家畜禽品种、类群596个，其中土著家畜禽品种（类群）占品种总数的70％以上。

There are 596 species of livestock and poultry in China, of which over 70 percent are native species.

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