Effects of different level of Phytase on Broilers Performance and Body Status of Phosphorus

Effects of different level of Phytase on Broilers Performance and Body Status of Phosphorus PDF

Sabha, Rabie Ihsan Ahmad

Supervisor(s)

Jamal Abo Omar -

Discussion Commity

صفحة

Abstract :

This experiment was conducted to investigate the effect microbial phytase supplementation on broilers performance, nutrient digestibility, visceral organ mass, carcass cuts and body status of Ca and P. a total of 200 day-old Cobb 500 chicks were used in the experiment. Birds were partitioned into five experimental groups of 40 birds in each. Each treatment was composed of 4 replicates with 10 birds in each. The control group was fed a commercial starter and finisher diet. The second treatment was a phosphorus deficient diet, while the third, fourth and fifth treatments were fed a phosphorus deficient diets plus the microbial phytase. Phytase enzyme was incorporated at levels 1000, 2000 and 3000 PU/kg feed for the last three treatments, respectively. At the last week of experiment, three birds from each replicate were used in metabolic trial. However, at time of termination of the experiment, the same birds were killed for carcass cuts, visceral organ mass and tibia ash content investigations. The experiment lasted for 42 days. Results of the experiment showed that addition of phytase to P-deficient diets improved (P

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