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畜牧人

標題: 奶牛消化代謝試驗：如何準確完全地收集到幾頭奶牛1天的糞和尿液？ [打印本頁]
作者: wjh_xumuren    時間: 2010-8-20 16:25
標題: 奶牛消化代謝試驗：如何準確完全地收集到幾頭奶牛1天的糞和尿液？
用1個飼養員幫忙，如何準確完全地收集到幾頭奶牛1天的糞和尿液？
作者: dnaxy    時間: 2010-8-22 06:43
做糞袋、尿袋
作者: jun1kun2    時間: 2010-11-22 18:46
我也遇到這個問題，期待得到回復




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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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