1目录中文摘要及关键词................................................................1英文摘要及关键词..............................................................2前言..........................................................................31.材料与方法..................................................................41.1材料来源..............................................................41.2测量工具..............................................................41.3测量内容..............................................................41.4测定方法..............................................................41.5处理数据..............................................................42分析与结果..................................................................42.1数据统计分析..........................................................42.2本地黄牛性状间的相关分析..............................................52.3本地黄牛体尺体重的回归分析............................................52.4体尺与体重的最优回归方程..............................................63讨论........................................................................73.1关于相关分析..........................................................73.2关于回归分析..........................................................73.3建立最优回归方程......................................................74结论........................................................................7参考文献......................................................................8致谢......................................................................92摘要采用SPSS软件对通辽市科左后旗甘其卡镇50多头地方牛的主要体尺指标和体重进行回归分析和相关分析，结果表明：体重和胸围的相关系数为0.737，呈高等正相关，体直长与尻宽的相关系数为0.456，中等正相关，体高与胸宽、胸围与胸宽、体直长与胸宽、胸围与尻高的相关系数均较小，分别为0.277、0.02、0.175和0.154，呈低正相关，建立体重和主要体尺指标间的最优回归方程：体重=-821+3.071体直长+4.388胸围，说明体重与体直长、胸围具有显著的线性回归关系，可以通过胸围、体直长进行体重预估。关键词:本地黄牛；体尺；回归分析；3CorrelationAnalysisofBodySizeTraitsofLocalYellowInnerMongoliaUniversityforNationalitiestongliao028000,chinaAbstractSPSSsoftwarewasusedforregressionanalysisandcorrelationanalysisofmainbodysizeindexesandbodyweightof50HorqincattleinGanqikaTown,kezuohoubanner,TongliaoCity.bodyweightandchestcircumferencewas0.737,showinghighpositivecorrelation(P<0.05),thecorrelationcoefficientofbodystraightlengthandrumpwidthwas0.456,mediumpositivecorrelation(P<0.05),thedifferencewassignificant(P<0.05)Thecorrelationcoefficientsofheightandchestwidth,chestcircumferenceandchestwidth,bodystraightlengthandchestwidth,bodyheightandbodystraightlength,chestcircumferenceandrumpheightwere0.277,0.02and0.175,respectivelyBodyweight=-821+3.071,bodystraightlength+4.388chestcircumference,whichindicatedthatbodyweighthadsignificantlinearregressionrelationshipwithbodystraightlengthandchestcircumference,andbodyweightcouldbeestimatedbychestcircumferenceandbodystraightlength.Keywords:Horqinyellowcattle;Bodyruler;Correlationanalysis;Regressionanalysis;4前言我国地方黄牛具有耐粗饲、抗病力强、性情温顺、适应性好、遗传稳定、肉质优良等特性。肉役或役肉兼用［1］。科尔沁黄牛，是以科尔沁草原上的本地黄牛为基础，用西门塔尔牛杂交培育的兼用型牛。这个新品种结合了双亲的优良特性，产奶...
