. 2019 Jul 17;12(7):1052–1059. doi: 10.14202/vetworld.2019.1052-1059

Table 2.

Performance indices (Mean±SE) in broilers exposed to lighting regimens using different lighting colors and durations.

Light color	Photo-period L: Dhour	BWG/g	FCR %	PI	WI/mL	FI/g	WI: FI ratio
Red		253.0^c±13.0	2.18^a±0.07	3.3^c±0.21	530.8^a±28.1	206.2^a±16.4	0.35^a±0.012
Blue		391.8^a±21.7	1.14^c±0.04	9.4^a±0.78	433.9^b±23.1	163.8^a±13.0	0.34^a±0.013
White		329.5^b±15.5	1.43^b±0.06	6.3^b±0.40	466.5^ab±24.6	190.7^a±14.8	0.37^a±0.013
p-value		0.000	0.002	0.000	0.026	0.056	0.310

Light’s color X lighting program

Red
	C-23:1	270.7^a±24.7	2.16^b±0.14	3.6^a±0.43	556.3^a±50.1	224.9^a±30.5	0.37^a±0.021
	C-18:6	258.5^b±22.4	2.10^c±0.11	3.4^b±0.37	530.2^ab±49.6	205.3^b±28.6	0.35^a±0.020
	I-16:8	229.8^c±20.6	2.30^a±0.13	2.9^c±0.29	505.9^b±47.6	188.2^c±26.9	0.33^a±0.021
Blue
	C-23:1	415.6^a±38.9	1.12^c±0.07	9.6^a±1.31	464.1^a±44.2	170.1^a±23.3	0.33^a±0.018
	C-18:6	384.4^b±37.1	1.15^b±0.08	9.3^b±1.42	425.0^ab±38.1	163.0^b±22.7	0.35^a±0.025
	I-16:8	375.4^c±38.0	1.16^a±0.09	9.1^c±1.40	412.6^b±38.2	158.5^c±22.6	0.34^a±0.025
White
	C-23:1	352.7^a±26.4	1.39^c±0.10	6.8^a±0.67	497.1^a±46.3	201.5^a±26.5	0.37^a±0.019
	C-18:6	325.0^b±28.2	1.45^a±0.11	6.1^b±0.74	462.8^ab±42.2	189.4^b±26.2	0.37^a±0.023
	I-16:8	310.7^c±26.2	1.44^b±0.12	5.9^c±0.68	439.5^b±40.3	181.3^c±25.3	0.37^a±0.024
p-value		0.009	0.003	0.007	0.000	0.024	0.860

Means carrying different superscripts in the same column are significantly different at (p≤0.05) or highly significantly different at p<0.01. Means carrying the same superscripts in the same column are non-significantly different at p<0.05. L=Light hours, D=Dark hours, C=Continuous, I=Intermittent, BWG=Body weight gain, FCR=Feed conversion ratio, PI=Performance index, WI=Water intake, FI=Feed intake, WI: FI=Water intake to Feed intake ratio, SE=Standard error