Interactions between dietary phytate concentration and phytase level on phytate degradation and amino acid digestibility in broiler chickens.

ABSTRACT: The objective of the present study was to investigate the effects of dietary myo-inositol hexakisphosphate (InsP₆) concentration and added phytase on gastrointestinal InsP₆ degradation, prececal digestibility of P, Ca, and amino acids (AA), and ME_N in broiler chickens. Dietary InsP₆ was increased by graded substitution of corn starch with a mixture of 50 % soybean meal, 20 % rapeseed meal, 20 % sunflower meal, and 10 % rice bran (oilseed meal-rice bran level (ORL)). The experiment was arranged in a 4 × 3-factorial design with 4 ORL (leading to 1.4, 1.9, 2.4, and 3.0 g InsP₆-P/kg) and 3 phytase levels (500, 1,500, and 3,000 FTU/kg). Male Ross 308 broilers were allocated to 84 metabolism units in groups of 10 and assigned to 1 of the 12

SUBMITTER: Wolfrum S 

PROVIDER: S-EPMC12269387 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature