Assessment of trade-offs between feed efficiency, growth-related traits, and immune activity in experimental lines of layer chickens.

ABSTRACT:

Background

In all organisms, life-history traits are constrained by trade-offs, which may represent physiological limitations or be related to energy resource management. To detect trade-offs within a population, one promising approach is the use of artificial selection, because intensive selection on one trait can induce unplanned changes in others. In chickens, the breeding industry has achieved remarkable genetic progress in production and feed efficiency over the last 60 years. However, this may have been accomplished at the expense of other important biological functions, such as immunity. In the present study, we used three experimental lines of layer chicken-two that have been divergently selected for feed efficiency and one that has been selected for increased antibody resp

SUBMITTER: Zerjal T 

PROVIDER: S-EPMC8101249 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature