. 2020 Dec 7;10(12):2330. doi: 10.3390/ani10122330

Table 3.

Mean values of pH, cooking weight loss (CWL), shrinkage percentage (SP) and hardness of hamburgers produced from Ross broiler chicken (AP95) without myopathies and affected by wooden breast myopathy after different storage periods.

pH
	SD (n = 20) ²			p-value
A (n = 20) ¹	Normal	Moderate	Severe	p-value
Start	5.847 ± 0.005 ^Ac	5.972 ± 0.005 ^Ab	5.997 ± 0.005 ^Aa
30 days	5.656 ± 0.005 ^Db	5.689 ± 0.005 ^Ea	5.656 ± 0.007 ^Eb	(SD)	<0.0001
60 days	5.716 ± 0.005 ^Cb	5.807 ± 0.005 ^Ca	5.795 ± 0.005 ^Ca	(A)	<0.0001
90 days	5.714 ± 0.005 ^Cc	5.791 ± 0.005 ^Da	5.775 ± 0.005 ^Db	(SD × A)	<0.0001
120 days	5.783 ± 0.006 ^Bb	5.879 ± 0.006 ^Ba	5.882 ± 0.005 ^Ba
CWL (%)
A (n = 20) ¹	Normal	Moderate	Severe	p-value
Start	28.51 ± 0.64 ^Dc	32.58 ± 0.57 ^Cb	38.44 ± 0.57 ^Ca
30 days	32.86 ± 0.62 ^Cc	38.61 ± 0.57 ^ABb	40.16 ± 0.57 ^Ba	(SD)	<0.0001
60 days	36.73 ± 0.57 ^Bc	39.62 ± 0.57 ^Ab	42.12 ± 0.57 ^Aa	(A)	<0.0001
90 days	38.39 ± 0.57 ^Aa	37.81 ± 0.57 ^Ba	37.55 ± 0.57 ^Ca	(SD × A)	<0.0001
120 days	17.31 ± 0.51 ^Da	16.45 ± 0.46 ^Ea	16.08 ± 0.45 ^Ca
SP (%)
A (n = 20) ¹	Normal	Moderate	Severe	p-value
Start	21.41 ± 0.49 ^Cc	24.13 ± 0.44 ^Cb	25.71 ± 0.44 ^Aa
30 days	22.28 ± 0.44 ^BCb	25.61 ± 0.44 ^Ba	25.71 ± 0.44 ^Aa	(SD)	<0.0001
60 days	22.97 ± 0.44 ^ABb	26.89 ± 0.44 ^Aa	26.50 ± 0.44 ^Aa	(A)	<0.0001
90 days	23.86 ± 0.45 ^Aa	22.65 ± 0.44 ^Da	23.12 ± 0.44 ^Ba	(SD × A)	<0.0001
120 days	17.31 ± 0.51 ^Da	16.45 ± 0.46 ^Ea	16.08 ± 0.45 ^Ca
Hardness (N)
A (n = 20) ¹	Normal	Moderate	Severe	p-value
Start	167.74 ± 6.75 ^Da	161.45 ± 6.75 ^Da	154.75 ± 6.75 ^Ca
30 days	174.70 ± 6.92 ^Da	190.05 ± 6.75 ^Ca	188.00 ± 6.75 ^BCa	(SD)	<0.0001
60 days	226.06 ± 6.75 ^Ca	230.37 ± 6.75 ^Ba	198.81 ± 6.75 ^ABb	(A)	<0.0001
90 days	283.50 ± 6.92 ^Ba	235.94 ± 6.75 ^Bb	214.92 ± 6.75 ^Ac	(SD × A)	<0.0001
120 days	401.50 ± 8.37 ^Aa	289.40 ± 7.32 ^Ab	171.82 ± 6.92 ^Cc

^{1 A–E} Means followed by different capital letters in the same column differ from each other by the Tukey test (p < 0.05). ^2/a–c Means followed by different lowercase letters on the same line differ from each other by the Tukey test (p < 0.05). A—Storage, SD—Severity degree.