Supplementation of pH-Stable Multienzyme Improved Growth Performance of Broiler Chickens

Backgrounds and Objective: This study discovered that the dietary multienzymes can be beneficial for improving growth performance.The present study investigated the effects of dietary supplementation of multienzyme preparation on growth performance, apparent total tract digestibility (ATTD) of nutrients and gut health of broiler chickens.Materials and Methods: A total of 320 broiler chickens (Ross 308) were randomly allotted to 4 treatments on the basis of similar body weight.The dietary treatments included a corn soybean meal (SBM) based diet supplemented with 0 (control), 0.025, 0.050, 0.075 or 0.10% multienzyme preparation.The experimental diets were fed in a mash form for 35 days in 2 phases (day 1-21, phase I and day 22-35, phase II).Data generated in the present study were subjected to statistical analysis using the GLM procedure of SAS in a randomized complete block design.Results: Broilers fed corn soybean meal based diets supplemented with different levels of multienzyme had greater (p<0.05)weight gain than broilers fed control diet.The feed intake during phase I tended to increase (p = 0.075) and the overall feed intake was greater in all multienzyme supplemented diets than that of T1.The overall feed conversion ratio was improved (p<0.05) in broiler chickens in T3 and T4 treatments.Supplementation of diets with increasing levels of multienzyme improved (p<0.05) the ATTD of dry matter in T3 and T4 during phase I. Digestibility of gross energy in phase I and crude protein in both phases tended to increase (p<0.1).The colonization of Clostridium spp. in cecum tended to decrease (p<0.1).Villus height in jejunum was significantly increased (p<0.05) with increasing levels of multienzyme in supplemented diets.Moreover, multienzyme had no effect on villus height, crypt depth and villus height to crypt depth ratio in duodenum and ileum.Dietary supplementation of multienzyme had significant effect (p<0.05) on viscosity and digesta viscosity of broiler was reduced with increasing dietary supplemented levels of multienzyme.Conclusion: In conclusion, this multienzyme has potential to improve the growth performance, ATTD of nutrients and gut health of broiler chickens fed a corn SBM based diet in the absence of antibiotics growth promoters.