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畜牧人

標題: 豬飼料 [打印本頁]
作者: wwpan7689    時間: 2007-6-9 16:27
標題: 豬飼料
大家幫我分析一下,豬的背部一般在10到30斤階段起有黑皮,以后脫落了也就沒事了,生長速度都很不錯.會有那些原因引起???



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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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