补饲营养舔砖与盐砖对滩羊生产性能的影响（英文）

The Effects of Nutrition Lick Brick and Salt Brick as Supplement Feed on the Production Performance of Tan Sheep

试验研究了在补饲营养舔砖与盐砖对滩羊生产性能的影响。选择36只平均体重为23kg左右的育肥滩羊,按体重随机分成3个处理组,每组12只,对照组为基础日粮,试验1组为基础日粮+补饲营养舔砖,试验2组为基础日粮+补饲盐砖,试验期为60 d的。结果表明,1)与对照组相比,试验1组,日增重提高17.09%(P<0.01),料重比降低11.69%(P<0.05),只均毛利润提高51.65元;试验2组,日增重提高7.03%(P<0.05),料肉比降低4.06%(P>0.05),只均毛利润提高19.78元;2)试验1组与试验2组比较日增重提高9.40%(P<0.05),料重比降低7.96%(P<0.05),只均毛利润提高31.87元;说明滩羊补饲营养舔砖与盐砖均可提高滩羊的生产性能,营养舔砖的补饲效果优于盐砖。

In the paper, the effects of nutrition lick brick and salt brick as supple-ment feed on the performance of Tan sheep were studied. 36 fattening Tan sheep with the average weight of about 23 kg were chosen, they were randomly divided into 3 groups according to the weight, and each group had 12 sheep. Control group was fed with normal daily ration, experimental group 1 was fed with normal daily ration＋nutrition lick brick, experimental group 2 was fed with normal daily ration＋salt brick, the experimental period was 60 d. The results showed that 1） compared with CK, daily gain of group 1 improved 17.09%（P〈0.01）, feed conversion ratio reduced 11.69%（P〈0.05）, and average gross profit per sheep improved 51.65 yuan; daily gain of group 2 improved 7.03%（P〈0.05）, feed conversion ratio reduced 4.06%（P〉0.05）, and average gross profit per sheep improved 19.78 yuan; 2） compared with group 2, daily gain of group 1 improved 9.40%（P〈0.05）, feed conversion ratio re-duced 7.96%（P〈0.05）, and average gross profit per sheep improved 31.87 yuan;these indicated that nutrition lick brick and salt brick as supplement feed for Tan sheep both can improve the production performance of Tan sheep, and the supple-mentary feeding effect of nutrition lick brick was better.