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畜牧人

標題: 關于牛奶的一個問題 [打印本頁]
作者: clang130    時間: 2010-11-30 11:31
標題: 關于牛奶的一個問題
奶牛每生產一斤奶，經過乳房的循環血液大概是多少？請高手指點
作者: lyun003    時間: 2010-11-30 11:51
沒有找到具體數據，希望有老師指點了
作者: lzwei    時間: 2010-11-30 12:13
400-500kg，貝爾考克奶牛發展國際研究所數據



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