Embryonic Thermal Manipulation Affects Ventilation, Metabolism, Thermal Control and Central Dopamine in Newly Hatched and Juvenile Chicks.

ABSTRACT: The first third of incubation is critical for embryonic development, and environmental changes during this phase can affect the physiology and survival of the embryos. We evaluated the effects of low (LT), control (CT), and high (HT) temperatures during the first 5 days of incubation on ventilation ( V. _E ), body temperature (Tb), oxygen consumption ( V. O₂), respiratory equivalent ( V. _E / V. O₂), and brain monoamines on 3-days-old (3d) and 14-days-old (14d) male and female chickens. The body mass of LT animals of both ages and sexes was higher compared to HT and CT animals (except for 3d males). The heart mass of 14d HT animals was higher than that of CT animals. Thermal manipulation did not affect V. _E , V. O

SUBMITTER: Rocha ACG 

PROVIDER: S-EPMC8249324 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature