Table 6.

Phenotypic¹ correlations among the performance, efficiency, ultrasound, and carcass traits

Trait2	UFD	UMD	IMF	CW	CC	CF	DD	DP
MEI	0.24	0.10	0.18	0.48	0.02	0.32	0.63	−0.17
ADG	0.03	0.15	0.02	0.44	0.19	0.15	0.49	−0.05
MBW	0.12	0.29	0.16	0.92	0.26	0.27	0.83	0.08
MFW	0.20	0.35	0.14	0.93	0.27	0.28	0.87	0.05
ECR	0.11	−0.06	0.10	−0.14	−0.17	0.03	−0.11	−0.03
REI	0.23	−0.11	0.13	−0.12	−0.20	0.18	0.09	−0.24
REIU	−0.10	−0.07	0.04	−0.07	−0.14	0.06	0.06	−0.14
REIFW	0.23	−0.12	0.16	−0.13	−0.22	0.20	0.10	−0.26
REICW	0.30	−0.11	0.21	0.01	−0.26	0.26	0.32	−0.37
REICWF	0.12	−0.09	0.11	−0.01	−0.22	−0.07	0.24	−0.29
RG	−0.11	0.10	−0.11	0.15	0.18	−0.04	0.13	0.04
RGU	0.02	0.08	−0.06	0.15	0.16	0.01	0.12	0.03
RGFW	−0.11	0.04	−0.11	0.00	0.12	−0.06	0.01	0.00
RGCW	−0.09	0.01	−0.10	0.00	0.08	−0.03	0.08	−0.09
RGCWF	−0.07	0.01	−0.08	0.00	0.07	0.01	0.09	−0.09

¹Phenotypic correlations ≤ |0.05| were not different (P > 0.05) from zero.

²MEI = metabolizable energy intake; MBW = mid-test metabolic live-weight; MFW = metabolic final live-weight preslaughter; ECR = energy conversion ratio; REI = residual energy intake; REI_U = REI adjusted for ultrasound fat depth; REI_FW = residual energy intake using metabolic final live-weight preslaughter; REI_CW = residual energy intake using carcass weight; REI_CWF = REI_CW adjusted for carcass fat; RG = residual gain; RG_U = RG adjusted for ultrasound fat depth; RG_FW= residual gain using metabolic final live-weight preslaughter; RG_CW = residual gain using carcass weight; RG_CWF = RG_CW adjusted for carcass fat score; UFD = ultrasound fat depth; UMD = ultrasound muscle depth; IMF = intramuscular fat percentage; CW = carcass weight; CC = carcass conformation score; CF = carcass fat score; DD = dressing difference; DP = dressing percentage.