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中文摘要：
牦牛采食量受牧场草量的限制，体重呈季节性波动，冷季补饲是减少牦牛冬季掉膘的重要措施。本文通过冷季补饲试验，结果为：冷季牦牛掉膘率为13％，相比传统饲养方法减少掉膘20％左右，牦牛体重在4月减少得最为严重。
英文摘要：
Yak feed intake is limited by herbage production of meadow, yak＇s weight is seasonal fluctuations, the cold season supplementary feeding is one of the important measures to reduce the yak weight lost in winter. The cold season weight lost rate is 13%, through the cold season supplementary feeding experiment, compared with the traditional breeding methods to reduce 20%,the yak weight reducing are serious in April.
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