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应用粪氮指数法检测青藏高原草甸区成年母牦牛青草期放牧采食量
吴伟生,郑群英,刘 刚,罗晓林,杨平贵,陈 琳
Daily Grass Organic Matter Intakes of  Female Yak
in Green Grass Season in Subalpine Meadow by Fecal Index Method
家畜生态学报 . 2015, (7): 33 -38 .