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畜牧人

標(biāo)題: 奶牛用的舔磚各添加劑的含量 [打印本頁(yè)]
作者: gwm506506    時(shí)間: 2009-4-12 09:15
標(biāo)題: 奶牛用的舔磚各添加劑的含量
現(xiàn)在市場(chǎng)上奶牛用的舔磚很多，但效果參差不齊，有沒(méi)有各添加劑含量的標(biāo)準(zhǔn)啊？
作者: 田永勝    時(shí)間: 2009-5-15 15:54
沒(méi)有，有的只是個(gè)別經(jīng)驗(yàn)含量



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