Table 1.

LDH specific activity in response to stress in F. heteroclitus liver tissue

Genotype	No handling stress	Exposure to handling stress
		1 day	2 days	7 days
Northern	1.89  ± 0.26	2.29  ± 0.47	1.96  ± 0.32	2.37  ± 0.30
Southern	0.91  ± 0.29	1.18  ± 0.36	0.89  ± 0.21	2.16  ± 0.19*

Specific activity: units/mg total protein (mean ± SD), n = 5 per group; *, significantly different from unstressed group (P < 0.05).