Table 5.

The effect ofsulfur amino acids (SAA) supplementation on hepatic GSSG, rGSH concentrations (measured 2 h after daily heat exposure on d 28 and 35) of broilers exposed to heat stress from 28 to 35 d of age.¹

Temperature program2	Diet
		28 d (Acute)			35 d (Chronic)
		GSSG	rGSH	rGSH:GSSG	GSSG	rGSH	rGSH:GSSG
		_________ nmol/g _________			_________ nmol/g _________
TN		418	3,779	9.07	378b	4,138	11.81
HS		417	3,689	8.86	538a	4,514	8.91
Pooled SEM		5.5	61	0.091	28	154	0.743
	Normal DSAA	417	3,722	8.93	482	4,253	9.96
	130% DSAA	418	3,746	8.96	434	4,399	10.75
Pooled SEM		5.5	61	0.091	28	154	0.743
P valuec
Temperature program		0.91	0.91	0.15	≤ 0.01	0.09	0.01
Diet		0.86	0.86	0.83	0.23	0.51	0.46
Temperature × Diet		0.44	0.44	0.08	0.13	0.17	0.05

¹Values are means from one bird per pen from 9 replicate pens from each interaction or 18 per main effect.

²TN = continuous 22 to 24°C; HS received 33°C for 6 h and 27.7°C for the remaining 18 h daily.

^a-bValues in a column without common superscript letter are different (P ≤ 0.05).

^cBoldface indicates significant P-value.