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Effect of Total Mixed Ration on Milk Performance and Apparent Digestibility of Ntrients in Dairy Cows
Author(s): Yi Xuewu, Zhang Shirui, Liu Hailin, Xiao Bingnan, Tan Xin, Dai Qiuzhong
Pages: 11-
15
Year: 2006
Issue:
6
Journal: CHINA DAIRY CATTLE
Keyword: 全混合日粮; 奶牛; 生产性能; 养分表观消化率;
Abstract: 实验研究了不同精粗比全混合日粮对奶牛生产性能和养分表观消化率的影响.实验选用了30头奶牛,根据产奶量、泌乳天数和胎次相近的原则分为5组.试验结果表明,随着全混合日粮中精料比例的增加,奶牛产奶量、4%标准乳产奶量、乳蛋白率、乳糖量、乳固形物产量和乳非脂固形物产量可显著提高(P<0.05),日粮养分中除粗脂肪外,其余各养分的表观消化率均随着日粮精料比例的增加而增加(P<0.05).
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