日粮钴铜比例对肉用绵羊维生素B12营养状况及养分代谢的影响
王润莲,张 微,朱晓萍,贾志海
Influence of Cobalt and Copper Supplementation on Vitamin B12 Status and Nutrient Utilization in Sheep
WANG Run-lian,ZHANG Wei,ZHU Xiao-ping,JIA Zhi-hai
中国农业科学
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2009, (8): 2909
-2914
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DOI: 10.3864/j.issn.0578-1752.2009.08.032