Canonical Correlation Analysis between Body Weight and Adult Traits in Yunshang Black Goat

doi:10.11924/j.issn.1000-6850.casb20190500112

Abstract

Abstract:

To explore the relationship between body weight and adult traits of Yunshang black goat, based on the body weight and adult traits data of 98 Yunshang black female goats, Pearson correlation analysis and canonical correlation analysis were performed on 11 variables using R software. The results of Pearson correlation analysis showed that there was a highly significant correlation between adjacent body weight (0.30<r<0.42, P<0.01) except adjusted body weight at 12 and 18 months of age; there was a highly significant correlation between adjusted body weight at 18 months of age and adult traits except body height (0.39<r<0.76, P<0.01); chest girth, canal circumference, backfat thickness and eye muscle area were significantly correlated (0.24<r<0.76, P<0.05). Canonical correlation analysis showed that the correlation between body weight and adult traits was mainly contributed by adjusted body weight at 18 months of age and chest girth. The study indicates that chest girth could be selected as a promising breeding index which is a key adult trait affecting body weight of Yunshang black goat.

Key words: Yunshang black goat, canonical correlation analysis, body weight, body size, R language

CLC Number:

S813.24
S827

Tao Lin, Yang Hongyuan, Jiang Yanting, He Xiaoyun, Hong Qionghua, Chu Mingxing. Canonical Correlation Analysis between Body Weight and Adult Traits in Yunshang Black Goat[J]. Chinese Agricultural Science Bulletin, 2020, 36(11): 108-112.

Figures/Tables 4

指标	平均值±标准误	最小值	最大值	变异系数/%
x₁/kg	1.89±0.04	1.00	3.00	20.63
x₂/kg	15.91±0.23	11.07	22.93	14.02
x₃/kg	23.78±0.33	16.97	33.67	13.84
x₄/kg	33.41±0.50	21.63	47.33	14.94
x₅/kg	38.09±0.57	25.39	56.01	14.89
y₁/cm	69.72±0.44	58.00	85.00	6.18
y₂/cm	65.43±0.35	59.00	77.00	5.30
y₃/cm	80.78±0.48	70.00	93.00	5.89
y₄/cm	8.34±0.05	7.00	9.50	6.47
y₅/mm	2.54±0.02	2.10	3.20	8.66
y₆/cm²	7.62±0.20	4.00	14.70	25.72

	x₁	x₂	x₃	x₄	x₅	y₁	y₂	y₃	y₄	y₅	y₆
x₁		0.0021	0.6840	0.9636	0.4393	0.5062	0.1856	0.8517	0.9789	0.4696	0.5552
x₂	0.3072^**		0.0004	0.0747	0.3111	0.8651	0.2779	0.0130	0.0321	0.4786	0.5297
x₃	-0.0416	0.3515^**		0.0000	0.1509	0.0485	0.6814	0.1260	0.3337	0.2205	0.6647
x₄	-0.0047	0.1809	0.4113^**		0.1162	0.0227	0.2799	0.0889	0.7148	0.9574	0.0053
x₅	-0.0790	0.1034	0.1462	0.1597		0.0001	0.0571	0.0000	0.0000	0.0000	0.0000
y₁	0.0679	0.0174	0.1999^*	0.2299^*	0.3918^**		0.0564	0.0584	0.8547	0.0095	0.1299
y₂	0.1348	0.1107	0.0420	0.1102	0.1929	0.1934		0.1296	0.1031	0.3965	0.2184
y₃	-0.0191	0.2500^*	0.1556	0.1728	0.7531^**	0.1919	0.1542		0.0000	0.0000	0.0149
y₄	0.0027	0.2167	0.0987	0.0374	0.4997^**	0.0187	0.1657	0.6272^**		0.0001	0.0167
y₅	-0.0739	0.0724	0.1249	-0.0055	0.5985^**	0.2607^**	0.0866	0.4528^**	0.3956^**		0.0000
y₆	-0.0603	-0.0642	-0.0443	0.2798^**	0.4035^**	0.1540	0.1255	0.2453^*	0.2412^*	0.5668^**

典型相关系数	P值
0.8460^**	0.0000
0.5166^**	0.0088
0.2438	0.6197
0.2079	0.6159
0.0799	0.7569

组合	性状	典型相关变量构成
1	体重	$u 1 = 0.0028 x 1 + 0.0111 x 2 + 0.0006 x 3 + 0.0088 x 4 + 0.0978 x 5$
1	成年性状	$v 1 = 0.0258 y 1 + 0.0053 y 2 + 0.0714 y 3 + 0.0032 y 4 + 0.0216 y 5 + 0.0133 y 6$
2	体重	$u 2 = 0.0111 x 1 - 0.0301 x 2 - 0.0537 x 3 + 0.1063 x 4 - 0.0090 x 5$
2	成年性状	$v 2 = 0.0253 y 1 + 0.0023 y 2 + 0.0188 y 3 - 0.0240 y 4 - 0.0988 y 5 + 0.1106 y 6$

组合	性状	典型相关变量构成
1	体重	$u 1 = 0.0028 x 1 + 0.0111 x 2 + 0.0006 x 3 + 0.0088 x 4 + 0.0978 x 5$
1	成年性状	$v 1 = 0.0258 y 1 + 0.0053 y 2 + 0.0714 y 3 + 0.0032 y 4 + 0.0216 y 5 + 0.0133 y 6$
2	体重	$u 2 = 0.0111 x 1 - 0.0301 x 2 - 0.0537 x 3 + 0.1063 x 4 - 0.0090 x 5$
2	成年性状	$v 2 = 0.0253 y 1 + 0.0023 y 2 + 0.0188 y 3 - 0.0240 y 4 - 0.0988 y 5 + 0.1106 y 6$

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