陕北白绒山羊角型与生长性状的相关分析  

Correlation analysis between horn type and growth traits in Shanbei white cashmere goats

作　　者：宋晓越 张杰[1] 李洋 朱海鲸[1] 冯继英 谢宇杰 姬凯 屈雷[1] SONG Xiaoyue;ZHANG Jie;LI Yang;ZHU Haijing;FENG Jiying;XIE Yujie;JI Kai;QU Lei(Shaanxi Province Engineering Technology Research Center of Shanbei Cashmere Goats,Yulin University,Yulin 719000,China)

机构地区：[1]榆林学院陕西省陕北绒山羊工程技术研究中心,陕西榆林719000

出　　处：《黑龙江畜牧兽医》2024年第13期42-46,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金：陕西省重点研发计划项目(2022NY-090);陕西化生基础科学研究项目(22JHQ045);陕西省创新能力支撑计划项目(2021PT-017)。

摘　　要：为了研究陕北白绒山羊角型分布规律及角型指标与山羊生长性状的相关性,丰富山羊良种选育的途径,试验对11618只山羊角型数据进行统计和分类,依据羊角特征建立了山羊角的角型分类规则,并对其中3610只陕北白绒山羊的角型指标(角大小、角形状、角弧度、角尖朝向)与生长性状(体长、体高、十字部高、胸深、胸宽、胸围和管围)进行相关性分析和单因素方差分析。结果表明:母羊的中角、拧角、非螺旋角和角尖向侧是优势角型,公羊的大角、非螺旋角和角尖向侧是优势角型。在公羊中,角弧度与胸宽呈极显著正相关(P<0.01),角尖朝向与体高呈显著正相关(P<0.05);在母羊中,4种角型指标均与生长性状存在相关性。母羊的大角对应的体长、十字部高、胸深、胸围、管围、胸宽均极显著高于中角和小角(P<0.01),大角和中角对应的体高也极显著高于小角(P<0.01);拧角对应的体长极显著高于直角(P<0.01);螺旋角对应的体高、十字部高、胸围和胸宽显著或极显著高于非螺旋角(P<0.05或P<0.01);角尖向上对应的体高、十字部高、胸深、胸围极显著高于角尖向侧(P<0.01)。公羊的螺旋角对应的胸宽极显著高于非螺旋角(P<0.01),角尖向侧对应的体高显著高于角尖向上(P<0.05)。在母羊的体高、十字部高、胸宽、胸围和管围等生长性状方面,角大小、角形状、角弧度和角尖朝向之间存在交互作用(P<0.05);在公羊中均没有交互作用。说明陕北白绒山羊角型与生长性状之间存在相关性,角型指标可作为辅助选育指标。In order to study the distribution rule of Shanbei white cashmere goat horn types and the correlation between horn type indexes and growth traits of goats,and to enrich the way of breeding better goats,the data from 11618 goat horn types were counted and classified,and the classification rules of goat horn types were established according to the horn characteristics.Among them,the correlation analysis between the horn type indexes(horn size,horn shape,horn radian,horn tip orientation)and the growth traits(body length,body height,cross height,chest depth,chest width,chest girth and tube girth)was carried out in 3610 Shanbei white cashmere goats.The results showed that the middle,twist,un-helical,and horn tip to the side of ewe were the dominant horn type,while the large,un-helical,and horn tip to the side of ram were the dominant horn type.In rams,horn radian showed a significantly positive correlation with chest width(P<0.01),and horn tip orientation showed a significantly positive correlation with body height(P<0.05).In ewes,all four horn type indexes were correlated with growth traits.The body length,cross height,chest depth,chest circumference,tube circumference and chest width corresponding to the large horn of ewe were significantly higher than those corresponding to the medium horn and small horn(P<0.01);the body height corresponding to the large and medium horn was also significantly higher than that corresponding to the small horn(P<0.01).The body length corresponding to the twist horn was significantly higher than that corresponding to the straight horn(P<0.01).The body height,cross height,chest circumference and chest width corresponding to helical horn were significantly higher than those corresponding to un-helical horn(P<0.05 or P<0.01),and the body height,cross height,chest depth and chest circumference corresponding to horn tip to the up were significantly higher than those corresponding to horn tip to the side(P<0.01).The chest width corresponding to the helical horn of rams was significantly high

关 键 词：陕北白绒山羊 角大小 角形状 角弧度 角尖朝向 生长性状 

分 类 号：S826[农业科学—畜牧学] S813.3[农业科学—畜牧兽医]