新疆褐牛体型外貌线性评定技术方法的研究

项目来源

新(略)尔(略)科(略)

项目主持人

杨(略)

项目受资助机构

伊(略)克(略)畜(略)((略)萨(略)州(略)学(略))

立项年度

2(略)

立项时间

未(略)

项目编号

2(略)D03031

项目级别

省(略)

研究期限

未(略) (略)

受资助金额

5(略)万(略)

学科

其(略)

学科代码

未(略)

基金类别

特(略)

关键词

新(略) (略)尺(略);(略)结(略) (略)聚(略) (略)性(略)定(略);(略)n(略)n(略)r(略) (略)t(略);(略)d(略)e(略)r(略)n(略)r(略)s(略)U(略)r(略)r(略)u(略);(略)i(略)p(略)

参与者

刘(略)

参与机构

未(略)

项目标书摘要:牛的(略)健康水平、使用年限(略)到牛场现代化程度与(略)兼用牛品种,体型外(略)于乳用品种又不同于(略)条件下应该做如何改(略)或几种概念模糊的线(略)果的准确性和可靠性(略)肉兼用牛体型外貌线(略)过测定新疆伊犁河谷(略)二胎生产母牛的体重(略)18个指标,对这1(略)、相关性、聚类和主(略)牛、中国西门塔尔牛(略)评定方法,提出了伊(略)性外貌评定方法,4(略)尻部、腿蹄、乳房,(略)种选配和选育提高方(略)

Applicati(略): The app(略)cattle is(略)elated to(略) level,se(略)and produ(略)ity of ca(略)so direct(略)the degre(略)ization a(略) efficien(略)e farms.X(略)wn cattle(略)purpose c(略),is diffe(略)oth dairy(略)reeds by (略)uation me(略)y shape a(略)ce.It is (略)o ensure (略)y and rel(略) the eval(略)lts only (略)everal fu(略)evaluatio(略),this stu(略) the line(略)on method(略)ape and a(略)f Xinjian(略)k and mea(略)total of (略)of body w(略)size and (略)cture of (略)g brown c(略)Yili Rive(略)re measur(略)extreme v(略)ce,correl(略)ering and(略)component(略)f these 1(略)ere carri(略)d on the (略)uation me(略)y shape a(略)ce of dai(略)hinese Si(略)tle and f(略)n cattle,(略)inear eva(略)hod of ap(略) Xinjiang(略)le in Ili(略)ey was pr(略)four char(略)traits we(略)structure(略)oof and b(略) provided(略)or identi(略)eeding an(略)of Xinjia(略)ttle in t(略)

项目受资助省

新(略)尔(略)

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  • 1.新疆褐牛体型外貌线性评定技术方法的研究其他报告(Study on Body Conformation Linear Assessment of XinJiang Brown Cattle)

    • 关键词:
    • 新疆褐牛、体尺性状、乳房结构、主成分聚类分析、线性外貌评定方法、XinJiang Brown Cattle、Body Measurement Traits、Udder structure、Principal
    • 杨光维;刘建明;
    • 《伊犁哈萨克自治州畜牧科学研究所;》
    • 2022年
    • 报告

    牛的体型外貌直接关系到牛的健康水平、使用年限、生产能力,也直接影响到牛场现代化程度与养殖效益。新疆褐牛作为兼用牛品种,体型外貌线性评定方法,既区别于乳用品种又不同于肉用品种。究竟在特定的条件下应该做如何改进或如何评定,单靠一种或几种概念模糊的线性评定,很难确保评定结果的准确性和可靠性。故本研究对新疆褐牛乳肉兼用牛体型外貌线性评定方法进行探究。通过测定新疆伊犁河谷483头新疆褐牛一胎或二胎生产母牛的体重、体尺、乳房结构性状共18个指标,对这18个指标进行极值、方差、相关性、聚类和主成分计算分析。并借鉴奶牛、中国西门塔尔牛、国外褐牛体型外貌线性评定方法,提出了伊犁河谷新疆褐牛9分制线性外貌评定方法,4个特征性状为整体结构、尻部、腿蹄、乳房,为今后新疆褐牛鉴定、选种选配和选育提高方向提供指导。 The appearance of cattle is directly related to the health level,service life and production capacity of cattle,and also directly affects the degree of modernization and breeding efficiency of cattle farms.Xinjiang brown cattle,as a dual-purpose cattle breed,is different from both dairy and meat breeds by linear evaluation method of body shape and appearance.It is difficult to ensure the accuracy and reliability of the evaluation results only by one or several fuzzy linear evaluation.Therefore,this study explored the linear evaluation method of body shape and appearance of Xinjiang Brown milk and meat cattle.A total of 18 indexes of body weight,body size and breast structure of 483 Xinjiang brown cattle from Yili River Valley were measured,and the extreme value,variance,correlation,clustering and principal component analysis of these 18 indexes were carried out.Based on the linear evaluation method of body shape and appearance of dairy cattle,Chinese Simmental cattle and foreign brown cattle,a 9-point linear evaluation method of appearance of Xinjiang Brown Cattle in Ili River valley was proposed.The four characteristic traits were overall structure,rump,leg hoof and breast,which provided guidance for identification,breeding and breeding of Xinjiang Brown Cattle in the future.

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