日粮不同NDF/NFC水平对周岁后荷斯坦奶牛生产性能、营养物质消化率、瘤胃发酵特征和甲烷排放的影响
董利锋, 杨修竹, 高彦华, 李斌昌, 王贝, 刁其玉
Effects of dietary NDF∶NFC ratio on growth performance， nutritive digestibility， ruminal fermentation characteristics and methane emissions of Holstein heifers
Li-feng DONG, Xiu-zhu YANG, Yan-hua GAO, Bin-chang LI, Bei WANG, Qi-yu DIAO
草业学报
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2021, (2): 156
-165
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DOI: 10.11686/cyxb2020117
