Effect of phytase supplementation on performance, fecal excretion, and compost characteristics in broilers fed diets deficient in phosphorus and calcium

This study investigated the effect of dietary supplementation with phytase on growth performance, fecal excretion, and compost nutrition broilers fed available phosphorus (avP)- calcium (Ca)-deficient diets. A total 750 one-day-old broiler chicks were randomly divided into five groups having ten replications in a floor house. Diets formulated positive control (PC), negative (NC; low avP Ca), NC supplemented levels; 500 (NC500), 1,000 (NC1000), 1,500 FTU/kg (NC1500). three-phase feeding program was used trial. Average daily gain (ADG) average feed intake (ADFI) diets significantly (<italic>p</italic> < 0.05) higher than those increase equivalent to PC. Serum levels Ca (P) NC1000 NC1500 NC. Interleukin (IL) level lowest group Plasma <italic>myo</italic>-inositol (INS) concentrations PC, NC, NC500 groups. Crude protein (CP) excretion notably lower PC concentration P<sub>2</sub>O<sub>5</sub> observed from Accordingly, we suggest that diet can improve their productive performance reduce environmental pollution.