PDF(880 KB)
不同规模化猪场饲料和粪便中锌含量调查分析
周 鑫,任善茂,李延森,李春梅
PDF(880 KB)
PDF(880 KB)
不同规模化猪场饲料和粪便中锌含量调查分析
Concentrations of Zinc in Feeds and Feces in Large Scale Pig Farms
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