Feed utilization and some plasma constituents as affected by probiotic and/or synthetic enzymes in broiler diets

Abstract

Microbial ecosystem balance and digestive enzymes are an important aim to improve nutritional utilization by increasing the digestibility and absorption in broilers supplemented with dietary bio additives (probiotic and/or synthetic enzymes).Three hundred and sixty one day-old Ross (308) broiler chicks were randomly divided into four experimental groups, fed a basal diet (control) or diets supplemented with a probiotic and/or enzymes. Results showed that live body weight at 42 days of age was significantly increased by bio additives supplementation, and recorded the best feed conversion ratio compared with non-supplemented group. Furthermore; Chicken fed diet supplemented with bio additives had a lower concentration of plasma triglycerides, HDL and cholesterol, while an increase in glucose and LDL levels was recorded. Histomorphology examination revealed that villi height and crypt depth were increased significantly with probiotic or probiotic supplementation with enzymes compared with control or enzymes groups. In conclusion, additions of bio additives to broiler diets enhanced productive performance, improved some plasma constituents and ileal histomorphology.