Non-phytate phosphorus equivalence for a novel E. coli phytase in corn and soybean meal diet fed to broiler chickens.

ABSTRACT: A total of 2,060 d old male Ross x Ross 708 chicks were placed (22 birds/pen; Exp. 1) and (5 birds/cage, Exp. 2) to determine non-phytate phosphorous equivalence (NPPE) for a novel E. coli phytase in corn and soybean meal-based diets. Broiler chickens were fed common starter and transitioned to experimental diets for grower (d 8-21) and finisher (d 22-35) phases. Diets were formulated to meet specifications except for available P (AvP) that was reduced by 0.05 percent unit by adjusting monocalcium phosphorous (MCP) to create five titration diets. Phytase was supplemented in the diet with the lowest AvP at 250, 500, 1,000, 1,500 and 2,000 FTU/kg to create 10 test diets per phase. Diets were allocated to 8 (Exp. 1) and 6 (Exp. 2) replicates. Feed intake (FI), body weight (BW), BW gain (BWG),

SUBMITTER: Song X 

PROVIDER: S-EPMC12391681 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature