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畜牧人

標題: 乳牛飼養管理的誤區 [打印本頁]
作者: yutata    時間: 2010-1-5 15:04
標題: 乳牛飼養管理的誤區
奶牛養殖戶常見的誤區有哪些
作者: hahachina    時間: 2010-4-21 23:54
后備牛的養護重視不夠；粗料重視不夠。



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