不同营养水平对内蒙古绒山羊生产性能的影响  

Effect of Different Nutrition Levels on the Performance of Inner Mongolia White Cashmere Goats

作　　者：杨成和[1] 朱森阳[1] 孔祥浩[1] 王润莲[1] 贾志海[1] 

机构地区：[1]中国农业大学动物科技学院,北京100094

出　　处：《中国畜牧杂志》2006年第1期14-16,共3页Chinese Journal of Animal Science

摘　　要：本试验选用120只2.5岁健康的内蒙古绒山羊母羊,根据体重、上年度产绒量和产羔率分为4组,每组30个重复,研究在自然放牧、放牧加补饲(混合精料100、200、300 g)条件下,不同营养水平对绒山羊生产性能的影响。结果表明:在自然放牧、放牧加补饲条件下,绒山羊的发情率、受胎率和双羔初生重均无显著(P>0.05)变化;每天每只羊补饲200 g混合精料组,产羔率显著(P<0.05)提高,但羔羊初生重下降(P<0.05);不同营养水平的补饲对绒山羊的绒产量、绒长度和细度无显著(P>0.05)变化。120 Inner Mongolia White Cashmere Goats （IMWCGs）, 2.5 year-old, were divided into four groups according to their body weight, last year parturition rate and cashmere yield, one control group and three treatment groups, with 30 IMWCGs per group. The effect of different nutrition levels on performance of the grazing IMWCGs was studied. The result showed that the nutrients intake was enough for the basic nutrients requirement of reproduction and cashmere and had no significant influence on the rate of oestrus and fecundation and birth weight of twins （P 〉 0.05） under grazing and grazing plus supplementation （100,200,300 g mixed ratiom）. Supplementation improved the rate of twins significantly （P〈 0.05）, and significant influence on the average birth weight （P 〈 0.05）; had no significant influence on the cashmere yield, length and diameter of cashmere （P 〉 0.05）.

关 键 词：畜牧学 生产性能 营养 内蒙古白绒山羊 

分 类 号：S827.5[农业科学—畜牧学]