【摘要】 用生活活性蛋白粉饲喂奶牛,研究其对奶牛生产性能的影响。采用逐头配对法,选取38对产奶牛分为试验组与对照组,试验组奶牛精饲料添加4%的生物活性蛋白粉,进行为期38d的试验检测,并用t检验对各组试验前后指标进行比较,结果表明试验组与对照组的产奶量差异显著(p<0.05),乳脂率差异不显著(p>0.05)。饲喂生物活性蛋白粉可显著提高产奶量,并可获得明显的经济效益。更多还原

【Abstract】 Cows were fed with bioactive protein powder in order to study its effect on the performance of cows. The couple method was selected. 38 lacteal cows were divided into experimental and control groups. 4% bioactive protein power were supplemented to contraction of experimental group and fed to cows for 38 days. Each index in pre-and post-experiment was compared with t analysis. The results showed that milk yield in experimental and control group was obviously different(P<0.05),but butter fat content has no difference.Bioactive protein powder greatly improved the milk yield and Economic benefit.更多还原