. 2021 Apr 30;100(8):101229. doi: 10.1016/j.psj.2021.101229

Table 3.

Broiler breast muscle weights on 0 and 5 d of age, of broilers incubated in the dark as a negative control (dark) or under monochromatic green light from different days of incubation to day of hatch (GD0-20, GD15-20, GD16, GD17, GD18, and GD18-20).

Treatmentday	Dark	GD0-20	GD15-20	GD16	GD17	GD18	GD18-20
0	0.66^B	0.75^A	0.71^AB	0.69^AB	0.73^AB	0.69^AB	0.74^A
5	5.78^B	6.54^AB	6.89^A	6.49^AB	6.33^AB	6.32^AB	6.65^A

Data are presented as means of the groups on a specific day, with different letters indicating significantly different means (P < 0.05).