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

Table 9.

Effects of providing different colored LED lights during incubation on relative bursa of Fabricius weight (g kg⁻¹) of broiler chickens on d 35 of age in the 2nd, 3rd, and 4th trials.

Light	n¹	Male	Female
Dark	5	1.69 ± 0.093^ab	1.32 ± 0.093^b
White	6	1.66 ± 0.084^ab	1.51 ± 0.084^ab
Red	6	1.74 ± 0.084^a	1.44 ± 0.084^ab
Blue	6	1.30 ± 0.084^b	1.53 ± 0.084^ab

Average		1.60 ± 0.043^x	1.45 ± 0.043^y

Number of experimental units. Experimental unit = 3 pens of birds hatched from the same incubator in trial 2, 3, and 4.

^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).