日粮能量和蛋白质水平对奶牛繁殖性能影响的研究进展
李秋凤，高艳霞，曹玉凤，李建国*，李运起
Advances in the Effects of Dietary Energy and Protein Levels on Reproduction Performance of Dairy Cows
LI Qiufeng，GAO Yanxia，CAO Yufeng，LI Jianguo*，LI Yunqi
动物营养学报
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2010, (02): 259
-266
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DOI: 10.3969/j.issn.1006-267x.2010.02.004
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