Abstract
A study was carried out to quantify the effect of different wavelengths of light on the production performance of broilers. A total of 240, day-old straight run broiler chicks were divided into 4 treatments each comprising of four replicates of 15 birds each. Chicks pertaining to treatment group G1, G2, G3 and G4 were provided blue light, green light, red light and plain incandescent light respectively. All treatments were provided continuous artificial photoperiod of 24 hours up to the rearing period (6wks). Light proofing of pens was done by black curtains. At 6weeks of age the body weight of the G1 group was found significantly higher than other groups. Again significantly higher overall body weight gain was noticed in G1 group followed by G4, G3 and G2. Feed consumption was significantly higher in G1 followed by G3, G4 and G2. Feed conversion ratio was significantly higher in G3 and lower in G1 group. It is concluded that birds reared under the blue light showed highest body weight, body weight gain and feed consumption with comparatively lower FCR.
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