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yin jin zhong gong zhu ying zhu yi de shi xiang
Author(s): 
Pages: 8
Year: Issue:  7
Journal: Rural Animal-Production Technology

Keyword:  GetLinkList(KeywordFilter('种公猪:9295维生素E:1498饲养管理:1335传染病:1334雄性特征:1256腿臀部:1231睾丸发育:1200赖氨酸需要量:1055江西省:1046肌肉发达:1018')'kw''CJFQ');
Abstract: <正> (一)选购雄性特征明显的种猪 1.腿臀部肌肉发达,睾丸发育良好,左右均称。单睾、隐睾或疝症均不能选购。 2.阴茎端部的包皮结不能太大。乳头排列整齐均匀,发育正常,不低于6对。
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