Profiles of genetic parameters of body weight and feed efficiency in two divergent broiler lines for meat ultimate pH.

ABSTRACT:

Background

Selection for feed efficiency is one of the best ways to decrease poultry production costs and environmental impacts. While literature on its genetic determinism is abundant, it is limited to one or a few periodic values over the animals' lifespans. With the development of new phenotyping tools, kinetics of growth and feed intake are now available, providing access to daily data on feed efficiency. In this study, over the course of 6 weeks, we described the kinetics of body weight (BW), average daily weight gain (ADG), feed intake (FI), and daily cumulative feed conversion ratio (DCFCR) using electronic feed stations. We then estimated the genetic parameters of daily data in two fast growing lines of chicken divergently selected for breast meat ultimate pH (heritability

SUBMITTER: Berger Q 

PROVIDER: S-EPMC8925093 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature