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jia xu si ge wei shi me
Author(s): 
Pages: 44
Year: Issue:  3
Journal: Hubei Journal of Animal and Veterinary Sciences

Keyword:  唾液分泌量 家畜 异物 冬春季节 粪尿污染 生长发育 营养不良 刺激性气体 支气管炎 创伤性炎症;
Abstract: <正>1 为什么学吃吊草好?羊天生有一种“洁净癖”,饲草一被污染,如人朝饲草上面吐一口唾沫,它就不吃了.冬春季节青草枯萎,羊只由放牧转为圈养,如果把草随便扔在羊圈里,被粪尿污染或踩踏后,羊就不吃了,就会浪费大量饲草,羊还吃不好.
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