在往年就诊的病例中，有一半的不孕不育家庭的“罪魁祸首”都是男性。
In about half of these cases, male infertility plays a role.
试验表明：该自制药品对体况较好的凉山半细毛羊不育适龄母羊具有一定疗效。
The result shows that this selfmade PMB has a certain level of treatment effect on Linag Shan semifinewool ewes, which are at the breeding age and in good body condition.
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