Effect of Probiotics, Prebiotics, Synbiotics, Organic Acids and Enzymes Supplementation on broiler Chicks’ Immunity in relation to the Economic Performance

Abstract

This study was conducted to evaluate the effect of different feed additives (Probiotics, Prebiotics, Synbiotics, Organicacids and Enzymes) on chicks’ immunity (Antibody titer against Newcastle vaccine, differential leukocyte count, totalproteins, albumin and globulin value) and economic efficiency analysis by using production functions under summercondition. Our results showed that, enzyme treated group recorded the highest value of white blood cells. Organic acidstreated group for Ross breed showed the highest value for lymphocyte percentage. Heterophils percentage value was thehighest for probiotics and synbiotics treated group. Concerning antibody titer to vaccination against Newcastle, we foundthat all the experimental groups had a positive effect on antibody titer. Regarding, albumin value, it was the highest forprobiotic treated group, while globulin value for Cobb breed showed higher value for all treated groups in comparison tocontrol group except for probiotic treated group. Regarding the effect of these additives on body weight and total return,we found positive relationship between feed additives and body weight and total return. On the basis of our results, itwould be concluded that probiotics, prebiotic, synbiotic, organic acids and enzymes had positive effect on immunity andeconomic performance of broiler chicken.