Table 1.

Genetic correlations (r_g) between the hyperpigmentation of visceral peritoneum and growth, carcass, and immune traits in chickens

Traitsa	No.b	Meansc	rg	P-value
BW91, g	511	2,100 ± 16.5	0.27 ± 0.14	2.43 × 10-2
CW, g	511	1,847 ± 14.5	0.24 ± 0.14	4.83 × 10-2
NW, g	511	1,401 ± 11.7	0.27 ± 0.13	1.86 × 10-2
DW, g	506	1,674 ± 13.7	0.21 ± 0.16	9.47 × 10-2
BMW, g	511	122 ± 1.09	0.17 ± 0.10	3.84 × 10-2
LMW, g	511	168 ± 1.95	0.34 ± 0.10	4.50 × 10-4
AFW, g	510	82.6 ± 1.58	0.07 ± 0.12	2.72 × 10-1
SIL, cm	510	129 ± 0.59	−0.06 ± 0.10	2.66 × 10-1
Ab-NDV	511	3.63 ± 0.07	−0.42 ± 0.14	1.35 × 10-3
Ab-AIV	511	1.31 ± 0.05	−0.26 ± 0.16	5.21 × 10-2
HC	508	13.4 ± 0.38	−0.25 ± 0.18	8.24 × 10-2

^a BW91 = body weight at day 91, CW = carcass weight, NW = net weight, DW = dress weight, BMW = breast muscle weight, LMW = leg muscle weight, AFW = abdomen fat weight, SIL = small intestine length, Ab-NDV = antibody response to Newcastle disease virus, Ab-AIV = antibody response to avian influenza virus, HC = heterophil count, representing heterophil to lymphocyte ratio.

^b Number of samples for estimating genetic correlations.

^c Mean ± standard error.