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畜牧人

標題: 雞的人工授精技術! [打印本頁]
作者: hxchang    時間: 2007-10-20 09:39
標題: 雞的人工授精技術!
種雞的人工授精技術,在許多場都在采用,對于在這方面需要做而又不是太熟悉的同行會有所幫助,聽十遍不如看一遍,這是一個短視頻,看過后希望對你有所幫助!個人也想收集這方面的視頻,如果你有,希望能夠分離!



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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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