新疆农业科学 ›› 2019, Vol. 56 ›› Issue (4): 740-748.DOI: 10.6048/j.issn.1001-4330.2019.04.017

• 植物保护·畜牧兽医·信息·农业经济 • 上一篇    下一篇

新疆也木勒白羊公羊体尺指标对体重影响力的分析

梁小鹏1, 张振良1, 阿曼开迪·莫哈麦提汗2, 姚力丹1, 包敖敦格日乐1, 决肯·阿尼瓦什1   

  1. 1. 新疆农业大学动物科学学院,乌鲁木齐830052;
    2. 新疆塔城地区畜牧科技推广研究中心,新疆塔城834700
  • 收稿日期:2018-11-30 出版日期:2019-04-20 发布日期:2019-07-08
  • 通信作者: 决肯·阿尼瓦什(1962-),男,新疆人,教授,博士,研究方向为动物遗传育种与繁殖,(E-mail)jueken62@163.com
  • 作者简介:梁小鹏(1994-),男,硕士研究生,研究方向为动物遗传育种与繁殖,(E-mail)2366297231@qq.com
  • 基金资助:
    国家科技支撑“新丝路经济带少数民族健康养殖与品牌创新模式研究”支项“新疆地方绵羊特色有机新型产品开发与技术集成”(2015BAD29B06)

Analysis of the Influence of Body Size Index of Xinjiang Yemule White Sheep Ram on Its Body Weight

LIANG Xiao-peng1,ZHANG Zhen-liang1,Amankaidi Mohamedikhan2,YAO Li-dan1, Baoaodungerile1,Jueken Aniwashi 1   

  1. 1. College of Animal Sciences , Xinjiang Agricultural University , Urumqi 830052 , China;
    2. Animal Husbandry Science and Technology Extension and Research Center of Tacheng Prefecture, Tacheng Xinjiang 834700, China
  • Received:2018-11-30 Online:2019-04-20 Published:2019-07-08
  • Correspondence author: Jueken Aniwash(1962-), male, Xinjiang, Professor, Ph.D., research direction for Animal Genetics and Breeding, (E-mail) jueken62@163.com

摘要: 【目的】对也木勒白羊公羊体尺指标对体重的影响力进行关联性分析,为也木勒白羊公羊的选种提供理论依据。【方法】随机测量50只2周岁也木勒白羊公羊的体重及体尺指标,将数据录入Excel表格整理,用SPSS 19.0进行统计分析、相关性分析、通径分析和逐步回归分析。【结果】所有指标中脂臀厚变异系数最大,为13.32%。体高、体长、胸围、胸宽、胸深、脂臀长、脂臀宽、脂臀厚均与体重呈极显著相关性,管围与体重呈显著相关性。胸围与体重的相关系数最大,为0.886,管围与体重的相关系数最小,为0.336。胸围对体重的直接影响作用最大,为0.34,胸深对体重的间接作用最大,为0.751。胸围、胸宽对也木勒白羊体重的影响既有较强的直接作用,又有较强的间接作用。筛选出影响也木勒白羊体重较主要的四个体尺指标为胸围、胸宽、体长、脂臀宽;【结论】也木勒白羊体重与体尺最优的线性回归方程为y=-65.113+0.647x3(胸围)+0.518x8(脂臀宽)+1.248x1(胸宽)+0.378x2(体长)。

关键词: 也木勒白羊; 相关性; 通径分析; 回归分析

Abstract: 【Objective】 In this paper, the influence of body size index on body weight of Yemule sheep was analyzed by different statistical analysis methods in the hope of providing theoretical basis for ram selection.【Methods】The experiment was conducted at the breeding base of the Yemule White Sheep Breeding Promotion Center in Emin County. The body weight and body size indicators of 50 2 year old Yemule White Sheep rams were randomly measured. The data were entered into an Excel spreadsheet for preliminary preparation. After that, statistical analysis, correlation analysis, path analysis and stepwise regression analysis were performed with SPSS 19.0; 【Results】The coefficient of variation of fat-thickness thickness was the highest in all indicators, which was 13.32%. Correlation analysis showed that body height, body length, chest circumference, chest width, chest depth, fat hip length, fat hip width, and fat hip thickness were significantly correlated with body weight, and tube circumference and body weight were significantly correlated. The correlation coefficient between chest circumference and body weight was the largest, 0.886, and the correlation coefficient between tube circumference and body weight was the smallest, 0.336. Path analysis showed that the direct effect of chest circumference on body weight was the largest, 0.34, and the indirect effect of chest depth on body weight was the largest, 0.751. The effect of chest circumference and chest width on the weight of Yemule White Sheep not only had a strong direct effect, but also a strong indirect effect. Through stepwise regression analysis, four main body size indexes were selected as chest circumference, chest width, body length and fat hip width.【Conclusion】The linear regression equation of body weight and body size is also y=-65.113+0.647x3 (chest circumference)+0.518x8 (fat hip width)+1.248x1 (chest width)+0.378x2 (body length)

Key words: Yemule white sheep; correlation analysis; path analysis; regression equation

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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