河南农业科学 ›› 2022, Vol. 51 ›› Issue (9): 133-140.DOI: 10.15933/j.cnki.1004-3268.2022.09.014

• 畜牧·兽医 • 上一篇    下一篇

不同日龄石歧鸽体尺与屠宰性能的主成分与通径分析

穆春宇1,张蕊1,汤青萍1,卜柱1,常玲玲1,付胜勇1,夏爱萍1,杨明军2   

  1. (1.江苏省家禽科学研究所,江苏 扬州 225125;2.河南天成鸽业有限公司,河南 平顶山 214400)
  • 收稿日期:2022-03-04 出版日期:2022-09-15 发布日期:2022-11-18
  • 通讯作者: 汤青萍(1976-),女,青海格尔木人,研究员,硕士,主要从事家禽遗传资源及育种研究。E-mail:tqp0979@163.com
  • 作者简介:穆春宇(1990-),男,山东临沂人,助理研究员,硕士,主要从事家禽遗传资源及育种研究。E-mail:muchunyu_521@126.com
  • 基金资助:
    河南省农业良种联合攻关项目(2022020202);新疆自治区重点研发计划项目(2020B01007);江苏现代农业产业技术体系建
    设专项(JATS[2022]405)

Principal Component and Path Analysis of Body Size and Slaughter Performance of Different Days of Shiqi Pigeon

MU Chunyu1,ZHANG Rui1,TANG Qingping1,BU Zhu1,CHANG Lingling1,FU Shengyong1,XIA Aiping1,YANG Mingjun2   

  1. (1.Jiangsu Institute of Poultry Science,Yangzhou 225125,China;2.Henan Tiancheng Pigeon Industry Co.,Ltd.,Pingdingshan 214400,China)
  • Received:2022-03-04 Published:2022-09-15 Online:2022-11-18

摘要: 为研究不同日龄石歧鸽体型外貌特征,探究体尺与屠宰性能之间的相关性,选取石歧鸽成年鸽和28日龄乳鸽各60 只(公母各半),测定体尺与屠宰性能,并进行主成分分析和通径分析。结果表明,28日龄乳鸽体质量与成年公母鸽存在显著差异;除胫长和胫围无显著差异外,其他指标均存在显著性差异;从占比数据看,从乳鸽到成年鸽胫长、胫围、屠宰率和腿肌率变化很小,腹脂质量和腹脂率减少最明显,胸肌质量增大最明显;28 日龄乳鸽和成年石歧鸽的体尺与屠宰性状呈不同程度的相关性。主成分分析结果表明,成年鸽和28日龄乳鸽各选取前5 个主成分(累计贡献率88.597%和87.900%),在成年鸽中,体质量、胸深、腹脂质量、胫围和胫长对主成分贡献率最大,在28 日龄乳鸽中,体质量、胸宽、腹脂质量、胫围和胫长对主成分贡献率较大。对石歧成年鸽和28 日龄乳鸽进行体型选育时应包括体质量、胸深、胸宽、胫围和胫长5 个指标。通径分析显示,在石歧成年鸽和28日龄乳鸽中,胸宽和龙骨长均是影响屠宰性能的重要指标。

关键词: 石歧鸽, 体质量, 体尺, 屠宰性能, 主成分分析, 通径分析

Abstract: In order to study the body appearance characteristics of different days of Shiqi pigeon and explore the correlation between body size and slaughter performance,sixty adults and sixty 28⁃day⁃old squabs(half male and female) of Shiqi pigeon were selected to measure body size and slaughter performance,and principal component analysis and path analysis were conducted.The results showed that the body weight of 28⁃day⁃old squabs was significantly different from that of adult male and female pigeons.Except shank length and shank circumference,there were significant differences in other indexes.From the proportional data,shank length,shank circumference,slaughter rate and leg muscle rate had little change from squab to adult.The decrease of abdominal fat weight and abdominal fat percentage was most significant,but the increase in pectoral muscle weight was most significant.The body size of 28⁃day⁃old squabs and adult pigeons was correlated with slaughter traits in different degrees.The results of principal component analysis showed that the first five principal components(cumulative contribution rates of 88.597% and 87.900%)were selected for adult pigeons and 28⁃day⁃old squabs respectively.Among adult pigeons,body weight,chest depth,abdominal fat weight,shank circumference and shank length contributed the most to the principal components. Among 28⁃day⁃old squabs,body weight,chest width,abdominal fat weight,shank circumference and shank length contributed the most to the principal components.Therefore,five indexes of body weight,chest depth,chest width,shank circumference and shank length must be included in body shape selection of 28⁃day⁃old squabs and adult pigeons.The results of path analysis showed that both chest width and keel length were important indicators affecting slaughter performance in adult and 28⁃day⁃old Shiqi pigeon.

Key words: Shiqi pigeon, Body weight, Body size, Slaughter performance, Principal component analysis, Path analysis

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