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

畜牧人

標題: 奶牛怎樣斷奶 [打印本頁]
作者: 我靠123    時間: 2012-7-31 13:58
標題: 奶牛怎樣斷奶
怎樣才能快速斷奶，
作者: dahe051311    時間: 2012-7-31 20:34
只能逐漸減少牛奶的飼喂量，增加犢牛料的供給量



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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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