出生类型和年龄对陇东绒山羊主要经济性状的影响

Effect of Birth Type and Age on Main Economic Traits of Longdong Cashmere Goats

以2012～2017年陇东绒山羊育种核心群母羊测定(调查)资料,运用最小二乘方差法分析出生类型和年龄对主要经济性状的影响。结果表明:出生类型对产绒量和出生重有极显著影响(P<0.01),对断奶重有显著影响(P<0.05),对绒长度、绒直径和抓绒后体重无显著影响(P>0.05);年龄对产绒量、绒长、绒直径和抓绒后体重均有极显著影响(P<0.01)。产绒高峰期在2～4岁,5岁时体重最大,2～6岁是生长发育及产绒的理想利用时期。

Based on the data of elder sheep breeding core group from 2012 to 2017,the least squares variance method was used to analyze the impact of birth type and age on main economic traits.The results showed that the birth type had a significant effect on the amount of cashmere and birth weight(P<0.01),and had a significant effect on weaning weight(P<0.05).There was no significant effect on the length of cashmere,the diameter of cashmere and the body weight after fluffing(P >0.05);age had a significant effect on cashmere yield,cashmere length,cashmere diameter and body weight after fluffing(P<0.01).The peak period of cashmere is 2to 4years old,the weight is the largest at 5years old,and 2to 6years old is the ideal use period for growth and development and cashmere production.