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畜牧人

標題: 用布爾山羊改良本地羊的問題 [打印本頁]
作者: 安格斯    時間: 2008-11-21 12:50
標題: 用布爾山羊改良本地羊的問題
有沒有人用布爾山羊改良過本地土羊啊，會不會出現難產啊
作者: ann    時間: 2008-11-21 14:02
難產率會提高。
作者: lxj52151    時間: 2008-11-27 20:47
我咨詢過，也查閱過一些資料，選擇母羊體格要大，不能選初羊。



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亚洲日韩精品无码专区网站_亚洲日本一区二区_亚洲Av无码专区国产乱码DVD_亚洲精品永久在线观看 
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