Relationship between Liver Mitochondrial Respiration and Proton Leak in Low and High RFI Steers from Two Lineages of RFI Angus Bulls

Table 1

Performance parameters of high and low residual feed intake (RFI) Angus bull progeny.

	Low RFI ()	High RFI ()	Mean difference		P value
Initial BW, kg	368.00	358.00	10.00	5.02	0.48
Final BW, kg	547.00	519.00	27.00	3.84	0.02
DMI, kg	8.53	8.51	0.01	0.16	0.97
ADG, kg	1.53	1.29	0.24	0.05	0.07
Liver weight, kg	6.01	5.99	0.01	0.13	0.97
RFI	−0.58	−0.01	−0.57	0.10	0.05
Age at slaughter, days	449.00	445.00	5.00	4.18	0.69

Pooled SEM ().