Table 4.

Estimates of genetic correlations (r²a ± standard error) between robustness traits (R1, R2, and R3), area between curves, and production traits for Piétrain line (Pie)

Trait1	R1	R2	R3	ABC
R1		0.57 ± 0.282	0.42 ± 0.362	−0.17 ± 0.182
R2	0.57 ± 0.282		0.92 ± 0.062	−0.22 ± 0.262
ABC	−0.17 ± 0.182	−0.22 ± 0.262	−0.08 ± 0.292
IBW	0.18 ± 0.222	0.50 ± 0.152	0.45 ± 0.182	−0.19 ± 0.182
ADG	0.22 ± 0.253	0.79 ± 0.083	0.78 ± 0.123	0.00 ± 0.193
FCR	0.21 ± 0.313	0.39 ± 0.153	0.32 ± 0.183	−0.10 ± 0.183
DFI	0.33 ± 0.272	0.73 ± 0.112	0.72 ± 0.122	−0.02 ± 0.162
RFI	0.23 ± 0.172	0.10 ± 0.202	0.07 ± 0.222	−0.05 ± 0.102
BF100	0.21 ± 0.233	0.29 ± 0.143	0.29 ± 0.173	0.01 ± 0.173
LD100	0.42 ± 0.233	0.15 ± 0.153	0.14 ± 0.183	−0.30 ± 0.183

IBW, initial body weight; TBW, testing body weight; ADG, average daily gain; FCR, feed conversion ratio; DFI, average daily feed intake; RFI, residual feed intake; BF100, backfat thickness estimated at 100 kg live weight; LD100, longissimus dorsi thickness estimated at 100 kg live weight; ABC, resilience index.

Estimates from a six-trait multiple trait model (ADG, FCR, BF100, LD100, and the two traits under consideration).

Estimates from a five-traits multiple trait model (ADG, FCR, BF100, LD100, and the trait under consideration).