日粮中无机钴添加量对山羊瘤胃微生物VB_(12)合成及血清VB_(12)水平的影响
何瑞国,姚艳平,杨晓静,郭长义,马立保
Effect of the adding amount of inorganic cobalt salt on VB12 synthesis of rumen microbe and serum VB12 concentration in goats
动物营养学报 . 2000, (04): 62 -0 . 

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