β-激动剂对体外培养的瘤胃微生物活力的影响
姚文,毛胜勇,王全军,朱伟云,韩正康
Effect of β-agonist on the activity of rumen microganism in vitro culture
动物营养学报 . 1999, (增刊): 256 -0 . 

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