TABLE 2.

Blood oxidative parameters of 41 days-old broiler chickens raised in either thermoneutral (TNT) or chronic heat stress (HS) conditions (n = 12/group) from 35 to 41 days of age.

	TNT	HS	SEM	p-value
Oxidative markers
TBARS (nmol MDA/mL)	36.21	35.47	4.50	ns
Carbonyls (nmol/mg proteins)	2.39	7.19	2.50	***
Antioxidant content
Retinol (nmol/mL)	6.32	5.89	1.00	ns
α-tocotrienol (nmol/mL)	0.005	0.110	0.012	ns
δ-tocopherol (nmol/mL)	0.15	0.31	0.11	***
γ-tocopherol (nmol/mL)	0.38	0.18	0.16	***
α-tocopherol (nmol/mL)	18.78	19.19	5.76	ns

***= p < 0.001; ns = not significant.

TBARS, thiobarbituric acid reactive substances.

MDA, malondialdehyde.

SEM, standard error of the mean.