摘要
以3～6月龄重庆黑山羊为试验动物，配制了粗蛋白质水平分别为8．23％、10．42％和12．52％的饲粮，进行了饲养试验、血清生化指标测定。结果表明：（1）随着饲粮中粗蛋白质水平的提高，各组山羊的日增重有增加的趋势，高蛋白质组极显著高于低蛋白质组（P〈0．01）、显著高于中蛋白质组（P〈0．05），中蛋白质组与低蛋白质组差异不显著（P〉0．05）；各组的日采食量有提高趋势，但各组间差异不显著（P〉0．05）；各组饲料转化率有提高趋势，高蛋白质组极显著高于低蛋白质组（P〈0．01），其余各组间差异不显著（P〉0．05）；低蛋白质组肥育毛利润比中蛋白质组低13．83％，而高蛋白质组比中蛋白质组高17．22％。（2）随着饲粮中蛋白质水平的提高，各组山羊血清中的尿素氮、转氨酶有增加的趋势，前自蛋白、总蛋白变化不大；
The current experiment was conducted to investigate the effects of different dietary crude protein levels （8.23% , 10. 42% and 12. 52% ） on the serum biochemical indexes in Chongqing black goat of 3 - 6 month old. The results showed that with the increase of dietary crude protein level, the daily weight gain of goat increased accordingly, and the high protein group was significant increased （P 〈0. 05 or P 〈0. 01 ）. The daily feed intake in each group had a trend of increase, but not significant （P 〉0.05）. The feed efficiency had an improvemental trend. High protein group was significantly higher than low protein group （ P 〈 0. 01 ）, there was no apparently difference between other groups （P 〉0. 05）. The gross profit of low protein group was 13.83% lower than medium protein group, and the high protein group was 17.22% higher than medium protein group. In addition, with the increase of crude protein level, there was a tendency of increase in urea nitrogen and transaminase of the serum in goats. And the other serum biochemical indexes had no significant changes.
出处
《畜牧与兽医》
北大核心
2009年第2期25-28,共4页
Animal Husbandry & Veterinary Medicine
基金
重庆重大科技专项(CSTC2008AA1020)
关键词
蛋白质水平
生产性能
血液生化指标
重庆黑山羊
protein level
performance
serum biochemical indexes
Chongqing black goat
