Effects of protease and phytase supplements on small intestinal microbiota and amino acid digestibility in broiler chickens.

ABSTRACT: The objective of this study was to determine the effects of protease origin and dosage on the prececal (pc) amino acid (AA) digestibility and the influence on composition of the microbial community in the small intestine. In addition, the effects of phytase supplementation were investigated. A total of 8 dietary treatments were included. The basal diet contained mainly corn and soybean meal. Three protease products were added to the basal diet, each at the level recommended by the supplier and at an 8-fold level. Phytase was supplemented in another dietary treatment. Each dietary treatment was allocated to 8 replicates of 15 birds each. The experimental diets were offered from day 15 to 21 for ad libitum consumption. The effect of protease supplementation on the pc AA digestibility depende

SUBMITTER: Borda-Molina D 

PROVIDER: S-EPMC6591686 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature