断乳前后乳猪消化道(胰、小肠内容物)几种消化酶活性变化的研究
计成,周庆,田河山,岳才军,谢志浩,李建魁
Effect of age on the development of the enzymes activity in the pancreatic and small intestinal contents
动物营养学报 . 1997, (03): 7 -12 . 

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