SEMEN CHARACTERISTICS OF CROSSBRED (FRIESIAN X SAHIW AL) BULLS AT LIVESTOCK RESEARCH ST A T.lON, NA TIONAL AGRICUL TURAL RESEARCH CENTRE, ISLAMABAD
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[效力级别] [学科分类] 兽医学
[关键词] Crossbred bull;semen volume sperm motility;concentration;morphology [时效性]
