Table 4. Mean antioxidant contents, lipid and protein oxidation in gluteus medius muscle from goats as influenced by dietary oil blend and postmortem ageing.

	Level of oil blend (%)				Storage days				P value
Parameter	0	4	8	SEM	0	4	7	SEM	diet	storage	diet x storage
α-tocopherol (mg/ kg)	2.46b	3.38a	4.02a	0.26	3.24a	2.92b	2.90c	0.30	0.001	0.023	0.101
γ-tocopherol (mg/kg)	0.47b	0.77a	0.98a	0.08	0.93a	0.85b	0.80b	0.06	0.001	0.008	0.243
δ-tocopherol (mg/kg)	0.06	0.08	0.08	0.01	0.07a	0.05b	0.03c	0.01	0.196	0.010	0.311
Carotenoid (mg/kg)	0.24	0.26	0.29	0.07	0.25a	0.20b	0.18b	0.08	0.142	0.014	0.099
TBARS (mg MDA/kg)	0.21	0.23	0.20	0.02	0.15a	0.19b	0.38c	0.03	0.418	<0.001	0.173
Free thiol (nmol/mg protein)	54.73	54.51	54.62	0.89	54.62a	43.06b	40.34c	1.00	0.691	0.037	0.534
Carbonyl (nmol/mg protein)	3.16	3.09	3.10	0.04	1.23c	3.45b	5.87a	0.67	0.584	< .001	0.125
Myosin heavy chain fast (density/mm2)	41.45	43.76	45.50	3.22	46.78	42.33	37.38	1.92	0.502	0.023	0.564
Myosin heavy chain slow (density/mm2)	70.10	74.14	76.13	2.13	76.12a	71.03b	64.20c	3.00	0.234	0.016	0.213
Actin (density/mm2)	16.27	16.34	16.61	0.21	16.67	16.33	16.15	0.67	0.127	0.124	0.145
Troponin T (density/mm2)	13.22b	15.26a	15.30a	0.76	15.99a	14.00b	12.82c	0.17	0.012	0.001	0.219

a, b, c means having different superscripts along the same row for each factor are significantly different. SEM = standard error of mean