The Effects of Processing and Phytase on Performance and Phosphorus Digestibility in Broilers

This experiment was conducted to study the effect of type of feed processing and type of phytase enzyme on growth performance, calcium, phosphorus tibia and toe ash ,fecal and ileal digestibility of phosphorus in broiler chickens. A total of 420 broiler chicks (Ross 308) were used in a completely random design in the a 2×3 factorial arrangement using two processing methods (pellet and mash) and three groups of enzyme (negative control, natuphos (Aspergillus niger) and Meriphase (E.coli). The experiment lasted up to 42 days of age. Levels of enzymes used in the experiment were 500FTU kg-1. The results showed that pelleting diet significantly increase the average daily feed intake, body weight and significantly improved feed conversion ratio (P