Optimization of energy and protein requirements in Rajasri Grower birds

The aim of this experiment was to study the effect of optimization of energy and protein requirements in Rajasri grower birds from 9-18 weeks of age on growth and carcass parameters. 360 Rajasri female birds at the age of 9 weeks were randomly allotted to 9 treatments with 8 replicates each replicate consists of 5 birds which are reared in cages upto 18 weeks of age. Nine experimental diets constituted with three levels of energy (2500 kcal, 2600 kcal, 2700 kcal/kg ME) each with three levels of protein (15%, 16%, 17% CP).The results shown that the group of birds supplemented with ME 2700 kcal/kg with 17% CP shown significantly (P<0.05) improved body weights, feed conversion ratio (FCR) dressing percentage, weight of liver, heart and gizzard when compared to the remaining. However, ME 2500 kcal/kg with 15%CP fed group shown lowest body weight and higher feed conversion ratio. The mean feed intake of Rajasri grower birds fed with diet containing 2500 kcal/kg ME and 15%CP recorded significantly (P<0.05) highest feed consumption while lowest feed intake was observed in birds fed with 2700 kcal/kg ME and 17% CP. Based on the overall results, it was concluded that supplementation of 2700 kcal ME /kg diet with 15% CP diet is optimum for growth performance of Rajasri grower birds.