摘要
以粗蛋白日粮为对照对泌乳牛应用瘤胃非降解蛋白质日粮进行了为期64天的对比试验。结果表明，头日平均产奶量试验组比对照组增加0．73kg，以4％乳脂校正乳，头日平均产奶量提高1．38kg，差异显著（P＜0．05）；每生产1kg乳试验组比对照组少消耗精料0．02kg，精饲料消耗降低3．26％；每生产1kg乳消耗日粮粗蛋白质试验组比对照组减少5．25g，降低4．85％。综合经济效益分析，头日平均纯收入试验组比对照组提高人民币5．0元，经济效益显著。
The nondegradable protein dietary use in the rumen of milk secreting cattle was comparativelystudied for 64 - days taking crude protein dietary as the control. The average milk yield per cattle per dayof testing group was 0.73kg higher than the control. Refering the standard milk of 4% milkfat, the milkyield per cattle per day increased 1. 38kg; the difference is significant (p < 0.05). The fine fodder consumption producing 1kg milk by testing group decreed 0. 02kg compared to the control; the consumptiondecreased 3. 26%. The dietary crude protein comsumption producing 1kg milk by testing group decreased5. 25g, i. e., 4. 85%. Through comprehensive analysis, average net income per cattle per day of testinggroup increased RMB5. 0 yuan compared to the control.
出处
《山西农业科学》
1997年第4期80-83,共4页
Journal of Shanxi Agricultural Sciences
关键词
奶牛
瘤胃
非降解蛋白质
日粮
Milk cattle, Rumen, Non-degradable protein, Dietary
