【摘要】 本试验在冷季补饲期和夏季牧草旺盛期采用三组饲料配方对52头甘南藏族自治州犏牛乳营养成分进行分析,结果表明:冷季补饲期和夏季牧草旺盛期三组饲料配方对犏牛的泌乳量有显著提升,乳的营养成分略有变化,但总体来说乳蛋白、乳脂率、乳糖等指标与对照组差异不显著。更多还原

【Abstract】 This study was intended to investigate the effects of three different feed formulas on milk nutritional component of cattle-yarks in Gannan during winter and summer.The results showed as follows:Lactational quantity of the control group was significantly lower than those which had been feed three different feed formulas in winter and summer.On the other hand,milk nutritional component of cattle-yaks was slightly high.But,milk protein,butterfat rate,lactose and additional indicators were not significantly higher than control group.更多还原