不同杂交组合优质冷鲜鸡体重与鸡冠相关和回归分析

发布时间：2018-06-08 01:35

本文选题：冷鲜鸡 + 体重　；参考：《家畜生态学报》2017年08期

【摘要】：通过比较不同杂交组合优质冷鲜鸡体重和鸡冠性状,初步筛选杂交组合,并通过分析鸡冠性状与体重的相关性,建立最佳回归方程,提高育种效率。对63日龄三个杂交组合优质冷鲜鸡体重和鸡冠指标进行测定,利用SPSS 16.0软件进行相关及回归分析,采用逐步回归法构建体重与鸡冠性状的多元回归方程。结果表明:三个杂交组合63日龄母鸡体重均超过1.8kg,公鸡体重均超过2.2kg。冷鲜鸡杂交组合1(ABC)大鸡冠公鸡鸡垂周长、总周长、鸡冠面积、鸡垂面积与总面积均显著高于其他组合;ABC大鸡冠公鸡鸡冠平均色R显著高于其他组合;ABC大鸡冠公鸡鸡垂色度级别显著高于冷鲜鸡杂交组合2(ABD)公鸡和冷鲜鸡杂交组合3(AEB)公母鸡;ABC大鸡冠公鸡鸡冠色度级别显著高于ABC母鸡、ABD公鸡、AEB公母鸡。63日龄体重与鸡垂周长、总周长(鸡冠+鸡垂)、鸡垂面积、鸡冠面积、总面积(鸡冠+鸡垂)均极显著正相关(P0.01),相关系数在0.579~0.753之间,其中与总周长(鸡冠+鸡垂)相关系数最大,为0.753。建立鸡冠对体重的最优回归模型:Y=1659.091+9.186 X1+0.052 X2,通过测定鸡冠总周长和鸡冠总面积能够较准确地评估体重变化。
[Abstract]:The best regression equation was established to improve breeding efficiency by comparing the weight and crown traits of chilled chicken with different cross combinations, and analyzing the correlation between the traits and body weight. The body weight and chicken crown index of three hybrid combinations of 63 days old were measured. The correlation and regression analysis were carried out by SPSS 16.0 software, and the multiple regression equation between body weight and crown traits was established by stepwise regression method. The results showed that the body weight of 63 day old hens and male chickens were over 1.8 kg and 2.2 kg, respectively. The length of vertical circumference, total circumference, and the area of chicken crown of large crowns of cold fresh chicken cross combination 1, ABC, and the total circumference of chicken, the total circumference and the area of chicken crown, The vertical area and total area of chickens were significantly higher than those of other combinations, the average color R of ABC big crowns cock was significantly higher than that of other combinations. The chromaticity grade of ABC big crowns was significantly higher than that of ABD / AEB / AEB hens. The total circumference (Crowne, droop area, total area) were significantly positive correlation (P 0.01), the correlation coefficient was between 0. 579 and 0. 753, among which the correlation coefficient with the total perimeter was the highest (0.753). The optimal regression model of the weight of chicken crowns was established. The weight change could be evaluated more accurately by measuring the total circumference and total area of the crowns.
【作者单位】：江苏省家禽科学研究所;江苏省家禽遗传育种重点实验室;江苏立华牧业股份有限公司;
【基金】：江苏省重点研发计划(现代农业)(BE2015344) 江苏省农业科技自主创新资金(CX(15)1009) 国家自然科学基金(31402032,31301967,31572358) 江苏省六大人才高峰项目(2014-NY-004) 现代农业产业技术体系建设专项资金(CARS-42-G03) 扬州市科技公共服务平台建设(YZ2016221) 江苏省三新工程(SXGC[2016]290)
【分类号】：S831

【相似文献】