Table 2.

Gen-expression of selected genes in the pectoralis muscle of broilers with no, mild or severe wooden breast on day 21 and day 30.

Gene	No	Mild	Severe
Day 21
Heat shock protein 70	1.00 ± 0.29 a	1.15 ± 0.28 a,b	1.41 ± 0.33 b
Heme oxygenase 1	1.00 ± 0.66 a	1.29 ± 0.74 a,b	2.01 ± 0.67 b
Vascular endothelia growth factor α	1.00 ± 0.26	0.87 ± 0.14	0.93 ± 0.17
Cyclooxygenase 2	1.00 ± 0.34 a	1.41 ± 1.83 a	1.63 ± 0.67 b
Lactate dehydrogenase	1.00 ± 0.26	0.84 ± 0.20	0.76 ± 0.20
B-cell lymphoma 2	1.00 ± 0.30	0.93 ± 0.18	1.05 ± 0.15
Interleukine-1β	1.00 ± 0.70	1.44 ± 1.67	1.75 ± 0.69
Tumor necrosis factor 1	1.00 ± 0.52 a	1.29 ± 0.75 a,b	1.35 ± 0.21 b
Hypoxia inducible factor	1.00 ± 0.33 a	1.07 ± 0.32 a,b	1.37 ± 0.21 b
Day 30
Heat shock protein 70	1.00 ± 0.37 a	1.05 ± 0.19 a,b	1.33 ± 0.21 b
Heme oxygenase 1	1.00 ± 0.69 a	1.83 ± 0.60 b	2.46 ± 0.73 b
Vascular endothelia growth factor α	1.00 ± 0.38	0.97 ± 0.34	1.03 ± 0.35
Cyclooxygenase 2	1.00 ± 0.58 a	1.38 ± 0.69 a,b	1.67 ± 0.71 b
Lactate dehydrogenase	1.00 ± 0.36 a	0.54 ± 0.43 b	0.57 ± 0.18 b
B-cell lymphoma 2	1.00 ± 0.33	1.09 ± 0.29	1.36 ± 0.62
Interleukine-1β	1.00 ± 0.74 a	1.55 ± 0.79 a,b	2.43 ± 1.86 b
Tumor necrosis factor 1	1.00 ± 0.59 a	1.43 ± 0.71 a,b	1.94 ± 1.03 b
Hypoxia inducible factor	1.00 ± 0.39 a	1.43 ± 0.40 b	1.76 ± 0.44 b

Data are mean ± standard deviation. Numbers no sharing subscription are statistical different from each other within days.