Assessing the nutritional equivalency of DL-methionine and L-methionine in broiler chickens: a meta-analytical study.

ABSTRACT: The purpose of this study was to perform a meta-analysis comparing the biological efficiency of DL-methionine and L-methionine (DL-Met and L-Met) in broiler nutrition. This analysis was based on a dataset comprising experiment results published in peer-reviewed papers since 2007. All experiments investigated the response of broilers (aged 0-21 d) to different dietary concentrations of DL- and L-Met, achieved by supplementing crystalline Met. A graphical analysis was conducted on the database using ellipses coverage and nonparametric density techniques. Two methods of linear and nonlinear exponential meta-regression analysis were used to determine relative bioavailability based on average daily gain (ADG) and feed conversion ratio (FCR) responses to dietary Met sources. The analyses of ADG

SUBMITTER: Asasi R 

PROVIDER: S-EPMC10587536 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature