. 2021 Jun 12;100(9):101328. doi: 10.1016/j.psj.2021.101328

Table 1.

Effects of providing different colored LED lights during incubation on body weight (g bird⁻¹) at 6 h postplacement, body weight gain (g bird⁻¹) (% of placement body weight) and feed consumption (g bird⁻¹) during the first 6 h postplacement in broilers.

		Body weight at 6 h post placement			Body weight gain during the first 6 h postplacement			Feed consumption during the first 6 h postplacement
Light	n¹	Male	Female	Average	Male	Female	Average	Male	Female	Average
Dark	7	49.0 ± 0.30	49.0 ± 0.30	49.0 ± 0.22^b	4.0 ± 0.36 (8.88%)	4.6 ± 0.36 (10.41%)	4.3 ± 0.26 (9.64%)^b	3.2 ± 0.16	3.4 ± 0.15	3.3 ± 0.11^b
White	8	50.0 ± 0.28	50.0 ± 0.28	50.0 ± 0.20^a	5.1 ± 0.34 (11.38%)	5.4 ± 0.34 (12.18%)	5.2 ± 0.24 (11.78%)^a	3.8 ± 0.14	3.8 ± 0.15	3.8 ± 0.10^a
Red	8	49.4 ± 0.28	49.5 ± 0.28	49.4 ± 0.20^ab	4.9 ± 0.34 (11.12%)	5.4 ± 0.34 (12.31%)	5.1 ± 0.24 (11.71%)^ab	3.5 ± 0.15	3.7 ± 0.14	3.6 ± 0.10^ab
Blue	8	49.4 ± 0.28	50.3 ± 0.28	49.9 ± 0.20^a	4.7 ± 0.34 (10.56%)	5.6 ± 0.34 (12.73%)	5.2 ± 0.24 (11.65%)^ab	3.7 ± 0.15	3.9 ± 0.14	3.8 ± 0.10^a

Average		49.4 ± 0.14	49.7 ± 0.14		4.6 ± 0.17 (10.48%)^y	5.2 ± 0.17 (11.91%)^x		3.6 ± 0.07	3.7 ± 0.07

Effect		ANOVA P-value

Lighting (L)		0.006			0.039			0.007
Gender (G)		0.164			0.017			0.257
L x G		0.313			0.768			0.883
Block		<0.0001			<0.0001			<0.0001

^a,bMeans within a column with different letters differ significantly according to Tukey-Kramer test (α = 0.05).

^x,yMeans within a row with different letters differ significantly according to Tukey-Kramer test (α = 0.05).