Effect of Cymbopogon proximus Aljack, Alaa Abdalla Ibrahim

Abstract

This study was carried out to evaluate the effects of addition Cymbopogon proximus (Cp) in broiler diets on the performance, carcase characteristics, blood picture and Newcastle antibody titer. A total of one hundred twenty, 7 days old unsexed broiler chicks (Ross308) approximately same weight (150g) were divided into four treatment groups (30) chicks/group. Each group was sub divided into (3) replicates (10) chicks each, in stratified and completely randomized design. Eight experimental diets were formulated to meet the nutrient requirements of broiler chicks, four diets to starter period and four diets to finisher period. The control diets (A) contain 0% Cp, and other diets (B, C and D) contain (1, 2 and 3%) Cp respectively. Results show there are significantly negative effect of Cp (P<0.05) on feed intake, weight gain, feed conversion ratio, production efficiency factor, protein efficiency ratio and energy efficiency ratio. On the other hand Cp significantly improve lysine efficiency and increase liver weight. Furthermore a significant reduction in platelet (P<0.05) was also observed. Whereas there are no significant affect on Newcastle antibody titer.