新疆褐牛体重与体尺指标的相关及回归分析

doi:10.3969/j.issn.1004-1524.2021.07.03

浙江农业学报 ›› 2021, Vol. 33 ›› Issue (7): 1177-1183.DOI: 10.3969/j.issn.1004-1524.2021.07.03

新疆褐牛体重与体尺指标的相关及回归分析

李涛¹(), 张梅², 刘建明¹^,^*(), 褚洪忠¹, 陈春华¹, 杨光维¹, 团勇¹, 邱梅玉³

1.伊犁州畜牧科学研究所,新疆伊宁 835000
2.伊犁职业技术学院,新疆伊宁 835000
3.新疆畜牧科学院生物技术研究所,新疆乌鲁木齐 830001

收稿日期:2020-07-08 出版日期:2021-07-25 发布日期:2021-08-06
作者简介:*刘建明,E-mail: 1010426648@qq.com
李涛(1990—),男,新疆伊犁人,硕士研究生,研究方向为动物遗传育种与繁殖。E-mail: taoli0128@sina.com
通讯作者: 刘建明
基金资助:
国家肉牛牦牛产业技术体系(CARS-37);新疆维吾尔自治区科技计划(2017B01001);新疆维吾尔自治区新疆褐牛联合育种体系

Correlation and regression analysis on body mass and body size index of Xinjiang brown cattle

LI Tao¹(), ZHANG Mei², LIU Jianming¹^,^*(), CHU Hongzhong¹, CHEN Chunhua¹, YANG Guangwei¹, TUAN Yong¹, QIU Meiyu³

1. Yili Animal Husbandry Science Research Institute, Yining 835000, China
2. Yili Vocational and Technical College, Yining 835000, China
3. Institute of Biotechnology, Xinjiang Academy of Animal Husbandry, Urumqi 830001, China

Received:2020-07-08 Online:2021-07-25 Published:2021-08-06
Contact: LIU Jianming

摘要/Abstract

摘要：

为探讨新疆褐牛体重与体尺指标间的相关性及构建不同生长阶段的回归方程,为新疆褐牛选育提供直接而有效的方法,以伊犁地区2011—2019年6月龄、12月龄、18月龄、24月龄新疆褐牛为对象,测定4个生长阶段的4个体尺指标和体重并进行相关性分析和逐步线性回归分析。新疆褐牛不同生长阶段体重和体尺指标间存在着极显著的(P<0.01)相关性,12月龄的体尺指标与体重的相关性较其他生长阶段更高,其他体尺指标间也存在着极显著相关性(P<0.01)。通过新疆褐牛不同生长阶段估测体重的回归模型,得到了6月龄、12月龄、18月龄、24月龄4个阶段的最优回归方程,其决定系数分别为0.60、0.63、0.55和0.44,说明各阶段体重与体尺指标存在着显著的线性关系。对不同生长阶段体重与体尺指标进行相关性及回归分析,构建了不同生长阶段的4个线性回归方程,对新疆褐牛选育具有重要的意义。

关键词: 新疆褐牛, 体重, 体尺, 相关性, 逐步线性回归

Abstract:

The experiment was conducted to explore correlation between body mass and body size and constructed regression equation for different growth stages in Xinjiang brown cattle, so as to provide an effective and direct method for Xinjiang brown cattle breeding. Four individual size indexes and body weight in 4 growth stages(6 months, 12 months, 18 months and 24 months) of Xinjiang brown cattle were measured and the correlation analysis and stepwise linearity regression analysis were performed in Yili area. There was a significant correlation between body weight and body size for different growth stages of Xinjiang brown cattle (P<0.01), the correlation between body size indexes and body weight was higher than others growth stage at 12 months old, and other body size indexes also showed a significant correlation(P <0.01).By the regression models estimating body mass for different growth stages of Xinjiang brown cattle, the optimal regression equations and the coefficients were 0.60, 0.63, 0.55 and 0.44, which indicated that there was a significant linear relationship between body weight and body size index in each stage. The correlation and regression analysis had constructed 4 linear regression equations for different growth stages of body mass and body weight, which was of great significance to Xinjiang brown cattle breeding in practice.

Key words: Xinjiang brown cattle, body mass, body size, correlation, stepwise linear regression

中图分类号:

S826

李涛, 张梅, 刘建明, 褚洪忠, 陈春华, 杨光维, 团勇, 邱梅玉. 新疆褐牛体重与体尺指标的相关及回归分析[J]. 浙江农业学报, 2021, 33(7): 1177-1183.

LI Tao, ZHANG Mei, LIU Jianming, CHU Hongzhong, CHEN Chunhua, YANG Guangwei, TUAN Yong, QIU Meiyu. Correlation and regression analysis on body mass and body size index of Xinjiang brown cattle[J]. Acta Agriculturae Zhejiangensis, 2021, 33(7): 1177-1183.

图/表 10

参考文献 25

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性状 Characters	6月龄(Six months old)			12月龄(Twelve months old)			18月龄(Eighteen months old)			24月龄(Twenty-four months old)
性状 Characters	样本 Sample	平均值 Average value	变异系数 CV/%	样本 Sample	平均值 Average value	变异系数 CV/%	样本 Sample	平均值 Average value	变异系数 CV/%	样本 Sample	平均值 Average value	变异系数 CV/%
体高 Body height/cm	1204	101.79 ±7.71	7.57	869	115.80 ±9.15	7.90	484	125.27 ±5.43	4.66	385	130.28 ±7.92	6.08
体斜长 Body length/cm		115.00 ±8.82	7.67		133.17 ±10.71	8.04		146.90 ±7.37	5.01		154.35 ±11.26	7.30
胸围 Chest girth/cm		122.95 ±10.21	8.30		146.67 ±11.03	7.52		159.15 ±7.76	4.88		172.35 ±11.97	6.95
管围 Circumference of cannon bone/cm		14.21 ±1.03	7.25		16.42 ±1.47	8.95		17.65 ±1.19	6.74		18.68 ±1.37	7.33
体重 Body weight/kg		155.22 ±30.19	19.45		255.49 ±42.24	16.53		336.94 ±40.58	12.04		419.14 ±65.68	15.67

性状 Characters	6月龄(Six months old)			12月龄(Twelve months old)			18月龄(Eighteen months old)			24月龄(Twenty-four months old)
性状 Characters	样本 Sample	平均值 Average value	变异系数 CV/%	样本 Sample	平均值 Average value	变异系数 CV/%	样本 Sample	平均值 Average value	变异系数 CV/%	样本 Sample	平均值 Average value	变异系数 CV/%
体高 Body height/cm	1204	101.79 ±7.71	7.57	869	115.80 ±9.15	7.90	484	125.27 ±5.43	4.66	385	130.28 ±7.92	6.08
体斜长 Body length/cm		115.00 ±8.82	7.67		133.17 ±10.71	8.04		146.90 ±7.37	5.01		154.35 ±11.26	7.30
胸围 Chest girth/cm		122.95 ±10.21	8.30		146.67 ±11.03	7.52		159.15 ±7.76	4.88		172.35 ±11.97	6.95
管围 Circumference of cannon bone/cm		14.21 ±1.03	7.25		16.42 ±1.47	8.95		17.65 ±1.19	6.74		18.68 ±1.37	7.33
体重 Body weight/kg		155.22 ±30.19	19.45		255.49 ±42.24	16.53		336.94 ±40.58	12.04		419.14 ±65.68	15.67

性状 Characters	体重 Body weight (Y)	体高 Body height (X₁)	体斜长 Body length (X₂)	胸围 Chest girth (X₃)	管围 Circumference of cannon bone(X₄)
体重Body weight(Y)	1.00
体高Body height(X₁)	0.51^**	1.00
体斜长Body length(X₂)	0.61^**	0.76^**	1.00
胸围Chest girth(X₃)	0.62^**	0.73^**	0.76^**	1.00
管围Circumference of cannon bone(X₄)	0.42^**	0.43^**	0.47^**	0.56^**	1.00

性状 Characters	体重 Body weight (Y)	体高 Body height (X₁)	体斜长 Body length (X₂)	胸围 Chest girth (X₃)	管围 Circumference of cannon bone(X₄)
体重Body weight(Y)	1.00
体高Body height(X₁)	0.51^**	1.00
体斜长Body length(X₂)	0.61^**	0.76^**	1.00
胸围Chest girth(X₃)	0.62^**	0.73^**	0.76^**	1.00
管围Circumference of cannon bone(X₄)	0.42^**	0.43^**	0.47^**	0.56^**	1.00

性状 Characters	体重 Body weight (Y)	体高 Body height (X₁)	体斜长 Body length (X₂)	胸围 Chest girth (X₃)	管围 Circumference of cannon bone(X₄)
体重Body weight(Y)	1.00
体高Body height(X₁)	0.58^**	1.00
体斜长Body length(X₂)	0.65^**	0.72^**	1.00
胸围Chest girth(X₃)	0.79^**	0.73^**	0.75^**	1.00
管围Circumference of cannon bone(X₄)	0.58^**	0.59^**	0.65^**	0.74^**	1.00

新疆褐牛体重与体尺指标的相关及回归分析

Correlation and regression analysis on body mass and body size index of Xinjiang brown cattle

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变量 Variable	参数估计 Parameter estimate	标准误差 Standard error	t值 t value	P值 P value
常量Constant	-279.36	9.05	-30.87	<0.001
体高Body height(X₁)	0.40	0.11	3.49	<0.001
体斜长Body length(X₂)	1.53	0.10	16.18	<0.001
胸围Chest girth(X₃)	1.39	0.59	16.96	<0.001
管围Circumference of cannon bone(X₄)	3.23	0.11	5.63	<0.001

变量 Variable	参数估计 Parameter estimate	标准误差 Standard error	t值 t value	P值 P value
常量Constant	-211.79	12.53		<0.001
体斜长Body length(X₂)	0.57	0.13	22.68	<0.001
胸围Chest girth(X₃)	2.67	0.12	4.27	<0.001

变量 Variable	参数估计 Parameter estimate	标准误差 Standard error	t值 t value	P值 P value
常量Constant	-523.12	30.33	-17.24	<0.001
体高Body height(X₁)	1.55	0.28	19.11	<0.001
体斜长Body length(X₂)	1.24	0.19	6.47	<0.001
胸围Chest girth(X₃)	3.03	0.16	5.55	<0.001

变量 Variable	参数估计 Parameter estimate	标准误差 Standard error	t值 t value	P值 P value
常量Constant	-238.38	37.80	-6.31	<0.001
体高Body height(X₁)	-3.32	0.60	-5.49	<0.001
体斜长Body length(X₂)	3.01	0.32	9.32	<0.001
胸围Chest girth(X₃)	3.62	0.32	11.28	<0.001

生长阶段 Stage of age	回归模型 Regression model	决定系数 Determination coefficient(R²)
6月龄 six months old	Y₁=-279.36+0.40X₁+1.53X₂+1.39X₃+3.23X₄	0.60
12月龄 twelve months old	Y₂=-211.79+0.57X₂+2.67X₃	0.63
18月龄 eighteen months old	Y₃=-523.12+1.55X₁+1.24X₂+3.03X₃	0.55
24月龄 twenty-four months old	Y₄=-238.38-3.32X₁+3.01X₂+3.62X₃	0.44

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