康乐黄公鸡早期体重与繁殖性状的相关性分析  

Correlation analysis between reproductive traits and early body weight of Kangle Yellow roosters

作　　者：马荆鄂 张惠瑛 王思齐 许继国 杨艳北 柴学文[1] 熊信威 王樟凤[1] 饶友生[1] MA Jing'e;ZHANG Huiying;WANG Siqi;XU Jiguo;YANG Yanbei;CHAI Xuewen;XIONG Xinwei;WANG Zhangfeng;RAO Yousheng(Institution of Biological Technology/Jiangxi Provincial Key Laboratory of Poultry Genetic Improvement,Nanchang Normal University,Nanchang 330032,China)

机构地区：[1]南昌师范学院生物技术研究院/家禽遗传改良江西省重点实验室,南昌330032

出　　处：《黑龙江畜牧兽医》2024年第16期38-41,共4页Heilongjiang Animal Science And veterinary Medicine

基　　金：江西省重点研发计划项目“江西省地方鸡种质资源保护、评估及创新利用”(20212BBF63028);江西省重点研发计划重点项目“基于分子生物技术对江西地方鸡种质资源的保护和品系选育配套”(20212BBF61011);江西省教育厅科技计划项目(GJJ2202002)。

摘　　要：为了揭示康乐黄公鸡早期体重与繁殖性状之间的相关性,试验测定了102只康乐黄公鸡出生和2,4,6,8,10,12,14,16周龄体重及22周龄繁殖性状指标[睾丸质量指标(左侧睾丸重、右侧睾丸重、总睾丸重、左侧睾丸指数、右侧睾丸指数、总睾丸指数)和精液品质指标(精液体积、精子密度)],并分析各性状指标间的相关性。结果表明:康乐黄鸡公鸡各周龄体重的变异系数在3.68%~12.84%之间,繁殖性状指标的变异系数在42.41%~68.43%之间。不同周龄体重间的相关性均达到显著水平(P<0.05),相关系数在0.345~0.958之间;睾丸质量指标(左侧睾丸重、右侧睾丸重、总睾丸重、左侧睾丸指数、右侧睾丸指数、总睾丸指数)间均呈极显著相关(P<0.01),相关系数在0.854~0.979之间;精液体积与8周龄、10周龄、12周龄、14周龄体重呈显著或极显著相关(P<0.05或P<0.01),相关系数在0.313~0.373之间。精子密度与左侧睾丸重、右侧睾丸重、总睾丸重、左侧睾丸指数、右侧睾丸指数、总睾丸指数均呈显著相关(P<0.05),相关系数在0.310~0.350之间。说明康乐黄鸡8周龄、10周龄、12周龄、14周龄体重与部分繁殖性状之间存在相关性。The study was aimed to study the correlation between reproductive traits and early body weight of Kangle Yellow roosters. The body weight at birth, 2, 4, 6, 8, 10, 12, 14, 16 weeks of age from 102 roosters and the reproductive traits at 22 weeks of age, including testicular quality indexes(left testicle weight, right testicle weight, total testicle weight, left testicle index, right testicle index, and total testicle index) and semen quality indexes(semen volume and sperm density) were measured. The correlation among each character index was analyzed. The results showed that the coefficient variation of body weight in Kangle Yellow rooster at each week of age was 3.68%-12.84%. The coefficient variation of reproductive traits was 42.41%-68.43%. The correlation between body weight at different weeks of age was significant(P<0.05), and the correlation coefficient ranged from 0.345 to 0.958. There were significant correlations among testis quality indexes(left testicle weight, right testicle weight, total testicle weight, left testicle index, right testicle index, total testicle index)(P<0.01);the correlation coefficient was between 0.854 and 0.979. Sperm volume was significantly correlated with body weight at 8, 10, 12 and 14 weeks of age(P<0.05), respectively. The sperm density was significantly correlated with left testicle weight, right testicle weight, total testicle weight, left testicle index, right testicle index and total testicle index(P<0.05), respectively. The correlation coefficient was between 0.310 and 0.350. These results indicated that the body weight of 8-week, 10-week, 12-week and 14-week was correlated with some of the reproductive traits in Kangle yellow chickens.

关 键 词：康乐黄公鸡 繁殖性状 体重 睾丸性状 精子性状 相关性分析 

分 类 号：S831[农业科学—畜牧学]