Effects of Maternal Stress on Measures of Anxiety and Fearfulness in Different Strains of Laying Hens.

ABSTRACT: Maternal stress can affect the offspring of birds, possibly due to hormone deposition in the egg. Additionally, phenotypic diversity resulting from domestication and selection for productivity has created a variety of poultry lines that may cope with stress differently. In this study, we investigated the effects of maternal stress on the behavior of different strains of laying hens and the role of corticosterone as its mediator. For this, fertilized eggs of five genetic lines-two brown (Brown 1 and 2), two white (White 1 and 2), and one pure line White Leghorn-were reared identically as four flocks of 27 birds (24F: 3M) per strain. Each strain was equally separated into two groups: Maternal Stress ("MS"), where hens were subjected to a series of daily acute psychological stressors for 8 da

SUBMITTER: Peixoto MRLV 

PROVIDER: S-EPMC7118700 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature