农牧交错带人工草地放牧对奶牛生产性能的影响
石永红, 韩建国, 张洪生
Herbage Intake and Milk Performance of Dairy Cows Under Different Grazing Systems and Intensities in Agro-pastoral Transitional Zone of North China
SHI Yong-hong, HAN Jian-guo, ZHANG Hong-sheng
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2007, (3): 232
-237
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DOI: 10.11733/j.issn.1007-0435.2007.03.007