Effect of dietary enzymes supplementation on growth performance, immune response, some blood parameters and carcass quality of broiler chicks

ABSTRACT

One hundred and twenty, day old age healthy cobb broiler chicks were used to study the influence of dietary supplementation of enzymes on growth performance, immune response, some blood parameters and carcass traits of broiler chickens. Broiler chicks were allotted into four groups; chicks of group 1 [the control] were fed on basal diet only, chicks of group 2 were fed on the basal diet supplemented by Deltazyme plus [registered sign] at 0.5 g/kg diet, chicks of group 3 received 95%basal diet +5% wheat bran and chicks of group 4 received the same diet of group 3 supplemented with Deltazyme plus [registered sign] supplementation improved significantly [P body weight gain of the broiler chickens in group 2 when compared with those of the control group and non significantly [p>0.05] increased in chicks of group 4 when compared with those of group 3. Dietary enzymes supplementation [groups 2 and 4] reduced daily feed intake when compared with those groups 1 and 3 respectively. Dietary supplementation of Deltazyme plus [registered sign] at 0.5 g/kg diet improved significantly [P chickens of groups 2 when compared with the control group, while non significantly improved in chickens of group 4 when compared with those of group 3. The present results revealed that enzyme supplementation increased phagocytic activity and phagocytic index. Dietary Deltazyme plus [registered sign] supplementation had significant effect on total protein, albumin, globulin content and had insignificant effect on glucose, cholesterol, and triglyceride. Also enzymes have specific effect on hormones as it found that Deltazyme plus [registered sign] supplementation increased insulin and T3. Dietary Deltazyme plus [registered sign] supplementation had no significant effect on dressing percent of broiler chickens and had no effect on relative weight of internal organs