Table 1
Physicochemical properties of infraspinatus (IS) and gluteus medius (GM) muscles in goats during postmortem chill storage

		Storage time (days)				P value
Parameter	Muscle	0	1	4	7	Storage	Muscle × storage
pH	IS	6.61 ± 0.110 ay	5.87 ± 0.111by	5.89 ± 0.140by	5.88 ± 0.102by	<.0001
	GM	6.34 ± 0.031ax	5.60 ± 0.101bx	5.60 ± 0.310bx	5.59 ± 0.221bx	0.001	0.091
	P value	0.012	0.001	0.012	0.021
Glycogen (mg/g)	IS	1.35 ± 0.010a	0.68 ± 0.023by	0.64 ± 0.011by	0.65 ± 0.010 by	<.0001
	GM	1.30 ± 0.030a	0.58 ± 0.012bx	0.56 ± 0.011 bx	0.57 ± 0.012 bx	<.0001	0.100
	P value	0.213	0.021	0.011	0.019
Drip loss (%)	IS	-	3.55 ± 0.342c	4.67 ± 0.481b	6.05 ± 0.731ay	<.0001
	GM	-	2.80 ± 0.110c	3.98 ± 0.210b	4.72 ± 0.140ax	<.0001	0.104
	P value		0.090	0.080	0.023
Cooking loss (%)	IS	38.22 ± 0.532ax	33.27 ± 0.230bx	34.54 ± 0.682b	34.48 ± 0.920b	<.0001
	GM	42.12 ± 0.651ay	37.87 ± 0.471by	36.67 ± 0.701b	36.79 ± 0.991b	0.0431	0.120
	P value	0.029	0.014	0.072	0.064
Shear force (kg)	IS	1.21 ± 0.011ax	0.89 ± 0.042bx	0.83 ± 0.011bcx	0.77 ± 0.020c	0.0275	0.224
	GM	1.32 ± 0.041ay	0.94 ± 0.021by	0.88 ± 0.012bcy	0.80 ± 0.042c	<.0001
	P value	0.023	0.015	0.016	0.201
Lightness (L*)	IS	32.64 ± 0.470b	33.26 ± 0.850b	37.77 ± 1.152a	37.52 ± 0.464a	0.004	0.126
	GM	34.04 ± 0.220b	34.98 ± 0.111b	37.22 ± 1.201a	38.02 ± 1.013a	0.002
	P value	0.061	0.258	0.078	0.069
Redness (a*)	IS	13.24 ± 0.221ay	14.12 ± 0.261ay	10.70 ± 0.690b	8.83 ± 0.180cx	<.0001	0.113
	GM	11. 20 ± 0.142ax	12.02 ± 0.111ax	10.23 ± 0.160b	9.45 ± 0.171cy	0.002
	P value	0.012	0.038	0.500	0.019
Yellowness (b*)	IS	13.38 ± 0.470	13.76 ± 0.150	11.64 ± 1.442	13.92 ± 0.882	0.288	0.183
	GM	13.14 ± 0.231	12.98 ± 0.712	12.47 ± 0.221	12.33 ± 0.332	0.543
	P value	0.231	0.106	0.114	0.321
Myoglobin (mg/g)	IS	3.21 ± 0.143ay	2.94 ± 0.072ay	2.74 ± 0.083b	2.68 ± 0.111b	0.020	0.156
	GM	2.89 ± 0.110ax	2.80 ± 0.122ax	2.71 ± 0.041b	2.60 ± 0.122b	0.013
	P value	0.032	0.022	0.091	0.213
Metmyoglobin (%)	IS	2.83 ± 0.252d	7.19 ± 0.391c	12.77 ± 0.480b	20.47 ± 0.571ay	<.0001	0.120
	GM	2.91 ± 0.433d	7.39 ± 0.222c	12.35 ± 0.232b	18.99 ± 0.110ax	0.002
	P value	0.156	0.412	0.210	0.046
MRA1 (nmol/min/g)	IS	200.06 ± 2.081a	189.50 ± 5.001ab	180.44 ± 6.562b	169.08 ± 4.920c	0.043	0.189
	GM	212.77 ± 3.112a	200.45 ± 3.232b	190.22 ± 4.113c	151.90 ± 3.120d	0.004
	P value	0.216	0.120	0.147	0.548