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

Table 2

Liver mitochondria respiration from high and low RFI Angus bull progeny.

	Low RFI ()	High RFI ()	SEM^†	P value
State 3 respiration	31.30	30.80	9.42	0.95
State 4 respiration	9.76	10.40	3.23	0.80
	3.05	3.03	0.24	0.93

RCR: respiratory control ratio (State 3 : State 4); State 3 and State 4 respiration data are presented as nanomoles of O₂ consumed per milligram of mitochondrial protein per minute.
^†Pooled SEM ().