Gene expression profiling reveals candidate genes related to residual feed intake in duodenum of laying ducks.

ABSTRACT: Feed represents two-thirds of the total costs of poultry production, especially in developing countries. Improvement in feed efficiency would reduce the amount of feed required for production (growth or laying), the production cost, and the amount of nitrogenous waste. The most commonly used measures for feed efficiency are feed conversion ratio (FCR) and residual feed intake (RFI). As a more suitable indicator assessing feed efficiency, RFI is defined as the difference between observed and expected feed intake based on maintenance and growth or laying. However, the genetic and biological mechanisms regulating RFI are largely unknown. Identifying molecular mechanisms explaining divergence in RFI in laying ducks would lead to the development of early detection methods for the selection of m

SUBMITTER: Zeng T 

PROVIDER: S-EPMC6292259 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature