Table 7.

Respiratory rates assayed on skinned muscle fibers. ^a

		Diet (Hg dose in food expressed in ng/g)
Oxygen consumption (ng atom O/min/mg fw)	Control diet	5.4	62	520
State 4 of respiration	1.6 ± 0.5	1.4 ± 0.2	1.3 ± 0.2	1.8 ± 0.4
State 3 of respiration	2.9 ± 0.7	*1.6 ± 0.3	*1.8 ± 0.4	2.1 ± 0.5
RCR	2.0 ± 0.2	*1.1 ± 0.2	*1.3 ± 0.2	*1.17 ± 0.05
COX activity	4.2 ± 0.8	*1.9 ± 0.3	3.2 ± 0.5	3.3 ± 0.3

^a Results are expressed as the mean ± SE, n = 4. Significant differences are indicated by an asterisk (p < 0.05).