Effects of β-mannanase supplementation on productive performance, inflammation, energy metabolism, and cecum microbiota composition of laying hens fed with reduced-energy diets.

ABSTRACT: The objective of this study is to investigate the beneficial effects and underlying mechanism of dietary β-mannanase supplementation on the productive performance of laying hens fed with metabolic energy (ME)-reduced diets. A total of 448 Hy-Line gray laying hens were randomly assigned to seven groups. Each group had 8 replicates with 8 hens. The groups included a control diet (CON) with a ME of 2750 kcal/Kg, diets reduced by 100 kcal/Kg or 200 kcal/Kg ME (ME_{_100} or ME_{_200}), and diets with 0.15 g/Kg or 0.2 g/Kg β-mannanase (ME_{_100}+β-M_{_0.15}, ME_{_100}+β-M_{_0.2}, ME_{_200}+β-M_{_0.15}, and ME_{_200}+β-M_{_0.2}). The productive performance, egg quality, intestinal morphology, inflammatory response, mR

SUBMITTER: Liu H 

PROVIDER: S-EPMC10882124 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature