Heat stress induces expression of HSP genes in genetically divergent chickens.

ABSTRACT: BACKGROUND:Chickens are animals that are sensitive to thermal stress, which may decrease their production level in terms that it affects feed intake and thus, decreasing body weight gain. The Heat Shock Factors (HSF) and Heat Shock Proteins (HSP) genes are involved in the key cellular defense mechanisms during exposure in hot environments. Aimed with this study to analyze the expression of HSF1, HSF3, HSP70 and HSP90 genes in two local breeds (Peloco and Caneluda) and a commercial broiler line (Cobb 500®) to verify differences in resistance of these chicken to Heat stress treatment. Chicken were submitted to heat stress under an average temperature of 39°C ± 1. RESULTS:Under stress environment, the HSP70 and HSP90 genes were more expressed in backyard chickens than in broiler. There was a

SUBMITTER: Cedraz H 

PROVIDER: S-EPMC5636143 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature