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li yong yun ma xue qing cu xing xian ji su he jia zuo tong pei he wei sheng su e zhi liao zhong gong yang si jing ji xing jing zi ji xing yu bu qiang de xiao guo
Author(s): 
Pages: 16
Year: Issue:  5
Journal: Liaoning Journal of Animal Husbandry and Veterinar

Abstract: <正> 实际生产中能作为种用的公羊非常有限,同时价格也很高。这就造成购羊的单位和个人,对种公羊过度使用(使用强度大、频率高),加之不注意饲养管理,饲料单一、往往造成种公羊使用一段时间后性欲降低,精液中无精子、死精子和畸形精子等现象发生。现将治疗情况报告如下。1 治疗药物和方法1.1 治疗药物 孕马血清促性腺激素为长春生物制品研究所生产;甲睾酮片为山东沂蒙新华制药厂生产;
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