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影响山西肉用绵羊母本品系生长性状的非遗传因素分析 被引量:4

Analysis of Non-genetic Factors Affecting Growth Traits of Shanxi Meat Sheep Dam Line
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摘要 为研究非遗传因素对山西肉用绵羊母本品系的初生重、断奶重(100日龄)、6月龄重和周岁重的影响,收集了山西肉用绵羊母本品系育种记录。利用SPSS19.0的GLM过程分析性别、出生年份、出生月份、母亲年龄、出生类型对山西肉用绵羊母本品系生长性状的的影响。结果表明:性别仅对6月龄重有极显著影响(P<0.01),对初生重、断奶重、周岁重影响显著(P<0.05);出生年份对初生重和断奶重有极显著影响(P<0.01),对6月龄重和周岁重影响显著(P<0.05);出生月份对6月龄重有极显著影响(P<0.01),对初生重、断奶重和周岁重无影响(P>0.05);母亲年龄对初生重影响显著(P<0.05),对6月龄重影响极显著(P<0.01),而对断奶重和周岁重无影响(P>0.05);出生类型对6月龄重有显著影响(P<0.05),对初生重和断奶重有极显著影响(P<0.01)。本分析结果对山西肉用绵羊母本品系的进一步选育和生产具有重要参考价值。 This paper aimed to study the influence of non-genetic factors on birth weight, wean weight, body weight at 6 month, yearling weight of Shanxi meat sheep dam line. The non-genetic factors considered were sex, birth year, birth month, age of dam, and birth type. GLM procedure in SPSS software package was used to analyse the variance, and Duncan's method was used for multiple comparison. The results indicated that the influence of sex on the body weight at 6 month was significant ( P 〈 0.01 ). Birth year significantly influenced birth weight and wean weight ( P 〈 0.01 ). Birth month influenced body weight at 6 month only ( P 〈 O. 01 ). Age of dam influenced birth weight ( P 〈 0.05 ) and body weight at 6 month (P 〈0.01 ). Birth type showed significant effects on birth weight (P 〈 0.01 ), wean weight (P 〈 0.01 ) and body weight at 6 month ( P 〈 0.05 ). These results were valuable for the further selection and production of the Shanxi meat sheep dam line.
出处 《四川动物》 CSCD 北大核心 2012年第6期931-935,共5页 Sichuan Journal of Zoology
关键词 山西肉用绵羊母本品系 生长性状 非遗传因素 Shanxi meat sheep dam line growth traits non-genetic factors
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