Effect of colour light and stocking density on litter pH of broiler

Abstract

We evaluated the effects of colour LED light with different stocking density on litter pH. A total of 270-day old broiler birds were brooded together for one week. After one week birds were randomly distributed into three colour light treatment viz. Control (white LED light), Blue LED, Green LED at three different stocking density (0.8 sq ft, 1 sq ft, 1.2 sq.ft) for each light group with three replicates in each density. Light intensity was 20 lux with 23L: 1D light regimes. Result revealed that at 3rd week white colour showed significantly (p≤0.05) higher pH (alkaline) that blue and green colour. At 5th week of age birds reared under white colour showed non significantly (p≥0.05) higher value pH(alkaline) than blue and green. Concerning the effect of density litter pH was found to non-significant among the groups. The interaction effects data showed the lowest value of pH in blue light stocked at 1 sq. ft significantly (p≤0.05) in 3rd week and non-significantly in 4th and 5th week. This result revealed that colour LED light with right stocking density improves litter quality.