kangchengfeed 發(fā)表于 2011-7-2 14:27 首先公豬質(zhì)量要過硬,其二精液質(zhì)量要有保證,確保母豬的妊娠率和產(chǎn)子率,三配送體系要完善,及時快捷保質(zhì)保 ...