Table 1.

Effect of high temperature and feed restriction on growth performance and meat quality of finishing pigs

Variable		Treatment			S.E.M	P value
		22AL	22PF	35AL
		(22 °C, ad lib)	(22 °C, pair-fed)	(35 °C, ad lib)
Initial BW, kg		77.75	77.62	77.80	0.416	0.630
Final BW, kg		103.85	86.02	87.70	10.12	< 0.001
ADG, kg/day		0.87a	0.28b	0.33b	0.061	< 0.001
ADFI, kg/day		3.02a	1.68b	1.51b	0.146	< 0.001
G:F		0.29b	0.17a	0.22b	0.015	0.001
Backfat first rib, mm Thickness tenth rib, mm Last rib, mm		33.67a	39.09b	42.77b	0.862	0.043
		21.48	22.04	22.27	0.974	0.715
		14.05	17.63	18.85	0.315	0.057
Loin eye area, mm2		4766	4431	4355	0.507	0.431
Leaf fat weight, kg		0.525	0.534	0.586	0.442	0.373
pH	45 min	6.10b	6.15ab	6.20a	0.04	0.113
	24 h	5.48b	5.48b	5.57a	0.014	0.002
	48 h	5.52b	5.55ab	5.64a	0.022	0.053
Drip loss,%	24 h	2	2	2.05	0.095	0.977
	48 h	2.61	2.48	2.59	0.101	0.872
L*	45 min	45.25b	46.58a	47.45a	0.303	< 0.001
	24 h	57.87	58.19	58.11	0.415	0.926
	48 h	57.75	58.18	58.87	0.386	0.082
a	45 min	15.84	15.58	15.81	0.203	0.864
	24 h	15.39	14.67	14.42	0.147	0.511
	48 h	15.12	15.55	15.06	0.210	0.612
b	45 min	2.31	2.61	2.59	0.112	0.503
	24 h	3.98	3.4	3.62	0.142	0.269
	48 h	3.11	3.16	3.23	0.167	0.96
IMF,%		4.77a	3.03b	2.89b	0.351	0.05
Shear force, N		41.51b	49.01a	43.15b	1.127	0.038
Glycogen content, mg/g		2.15a	1.38b	1.19b	0.681	0.046

Data are means with s.e.m., n = 8

a, b, Within a row, means with a common superscript do not differ (P > 0.05)

ADG average daily gain, ADFI average daily feed intake, F:G, feed gain ratio, IMF intramuscular fat, L* lightness, a redness, b yellowness