Table 4.

Comparison of the least square means ( ± S.E.) of the different offspring groups for estimated breeding values (EBVs) for the traits selected, i.e. residual headless carcass weight (rHGCW) and E8/E23.

	N =	rHGCW		E8/E23
		Parent EBV	Full EBV	Parent EBV	Full EBV
Both+	131	15.25 ± 1.21	7.15 ± 2.11	0.0064 ± 0.0006	0.0034 ± 0.0021
rHGCW+	396	9.23 ± 0.66	5.49 ± 2.35	0.0013 ± 0.0004	0.0028 ± 0.0025
E8/E23+	123	4.28 ± 0.95	3.37 ± 1.74	0.0049 ± 0.0003	0.0039 ± 0.0020
Mid	163	−1.99 ± 0.90	−1.98 ± 2.61	−0.0010 ± 0.0003	−0.0041 ± 0.0016
E8/E23−	267	−5.23 ± 0.94	−5.15 ± 2.58	−0.0071 ± 0.0003	−0.0056 ± 0.0018
rHGCW−	208	−15.82 ± 1.20	−5.59 ± 2.35	−0.0022 ± 0.0004	0.0029 ± 0.0016
Both−	273	−17.28 ± 1.10	−16.36 ± 2.83	−0.0082 ± 0.0004	−0.0140 ± 0.0023
Sel+	650	9.21 ± 0.77	5.30 ± 1.29	0.0038 ± 0.0004	0.0035 ± 0.0014
Sel−	748	−12.10 ± 1.00	−8.53 ± 1.75	−0.0060 ± 0.0005	−0.0054 ± 0.0014

Sel+ represents the aggregation of all up-selected groups (Both+, rHGCW+, E8/E23+) and Sel− is the same for down-selected groups (Both−, rHGCW−, E8/E23−). EBVs were estimated based only on the phenotypes in the parental generation (parent) or adding phenotypes from the offspring generation (full).