Effects of neutral phytase on growth performance and phosphorus utilization in crucian carp (Carassius auratus).

A feeding trial was conducted for nine weeks to investigate the effects of partially replacing Ca(HPO) with neutral phytase on the growth performance, phosphorus utilization, nutrient digestibility, serum biochemical parameters, bone and carcass mineral composition, and digestive-enzyme-specific activity in crucian carp (Carassius auratus). The diets prepared with 0.8%, 0%, and 1.