鸿雁体尺指标与体质量的相关性研究  

Correlation Analysis between the Body Sizes and Body Weight of Anser cygnoides

作　　者：杜强[1] 韩卫杰[1] 郑峰 黄晓凤[1] DU Qiang;HAN Wei-jie;ZHENG Feng(Jiangxi Academy of Forestry,Nanchang,Jiangxi 330032;Forestry Bureau of Fuliang County,Jingdezhen,Jiangxi 333400)

机构地区：[1]江西省林业科学院,江西南昌330032 [2]江西省浮梁县林业局,江西景德镇333400

出　　处：《安徽农业科学》2021年第11期88-90,共3页Journal of Anhui Agricultural Sciences

基　　金：中央财政林业科技推广项目(JXTG〔2018〕18);江西省重点研发项目(2020BBFL63030)。

摘　　要：[目的]探讨鸿雁体尺指标与体质量之间的相互关系,揭示其体尺指标对体质量的影响程度。[方法]试验随机选取6月龄鸿雁30只,雌雄各半,测量其体质量(Y)、胫围(X_(1))、胫长(X_(2))、胸宽(X_(3))、胸深(X_(4))、胸围(X_(5))、体斜长(X_(6))、龙骨长(X_(7)),运用SPSS 22.0软件进行体尺指标与体质量的相关分析、通径分析和回归分析。[结果]鸿雁的体尺指标(胫围、胸宽、胸深、胸围、体斜长、龙骨长)与体质量之间存在极显著正相关(P<0.01)。在体尺指标中,对鸿雁体质量的直接作用较大的指标有龙骨长、胸宽、胫围、胸深;大部分指标的直接作用小于间接作用,反映多体尺指标联合效应成为影响鸿雁体质量的主要因素。决定程度分析显示,对鸿雁体尺指标对体质量决定程度较高的体尺指标有龙骨长、胫围、胸宽。以体质量为因变量,体尺指标为自变量,采用逐步线性回归方法建立了回归方程:Y=-2.432+0.146X_(7)+0.371X_(1)+0.124X_(3)(r=0.924,P<0.01)。[结论]该研究结果可为利用鸿雁进行我国家鹅杂交改良提供依据。[Objective]To investigate the correlation between body weight and body size indices of Anser cygnoides,and reveal the influencing degree of body weight and body size indices.[Method]30 heads(half male and half female)of A.cygnoides at 6-month-age were selected randomly as objects.The body weight(Y),shank girth(X_(1)),shank length(X_(2)),chest width(X_(3)),chest depth(X_(4)),chest circumference(X_(5)),body steep length(X_(6)),and keel length(X_(7))were measured.The phenotypic correlation analysis,path analysis and regression analysis between the body weight and body size indices of A.cygnoides were made by using SPSS 22.0 software.[Result]There were extremely significant positive correlation between body weight and body size indices(shank girth,chest width,chest depth,chest circumference,body steep length,keel length)(P<0.01).Among the body size indices,keel length,chest width,shank girth,and chest depth had greater direct effects on the body weight,and most indices had greater direct effects than indirect effects,which indicated the combined effect of multiple body size indices had become the main factor affecting the body weight of A.cygnoides.The decision analysis showed that the body size indices that had higher degree of determination for the body weight of A.cygnoides were keel length,shank girth and chest width.Taking body weight as dependent variable and body size indices as independent variables,the regression equation was established by using the stepwise linear regression method as Y=-2.432+0.146X_(7)+0.371X_(1)+0.124X_(3)(r=0.924,P<0.01).[Conclusion]The results of this study could provide the basis for the use of A.cygnoides to improve the goose hybridization in China.

关 键 词：鸿雁 体尺 体质量 相关分析 通径分析 

分 类 号：S865[农业科学—野生动物驯养]