Effect of Different Colours of Incandescent Light on the Growth Indices and Carcass Characteristics of Broiler Finisher Birds

Abstract

In a study to evaluate the effect of different incandescent light bulbs on the performance of finisher broiler birds, 300 unsexed four weeks old Marshal breed of broilers were randomly allotted to white, blue, red, green and yellow colours denoted as T₁, T₂, T₃, T₄ and T₅ treatments respectively. Each treatment group was further replicated three times in a completely randomized design. A 12D/12L regimen was used all through the study period of 28 days and light intensity ranged between 10-15 Lux. Standard management practices for growing broilers were maintained and feed and water were supplied ad libitum. Final weight, weight gain, feed intake, feed conversion ratio, feed cost/kg gain and mortality were evaluated. Fished weight, weight gain and feed intake were influenced by colour of light. Results showed that birds reared under red light performed better those reared under white, green, blue and yellow lights of the same wavelength.