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jia xu si ge wei shi me
Author(s): LI Shuzuo, YANG Songfu
Pages: 44
Year: 1999
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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