Open AccessONTOGENETIC, BREED, AND SEASONAL FEATURES OF THE SYNTHESIS OF THYROXIN AND CORTISOL IN DOGS AND CATS
Author(s) -
Н. В. Ефанова,
С. В. Баталова,
Л. М. Осина,
Elitza Naumova
Publication year - 2022
Publication title -
innovacii i prodovolʹstvennaâ bezopasnostʹ
Language(s) - English
Resource type - Journals
ISSN - 2311-0651
DOI - 10.31677/2072-6724-2021-34-4-19-24
Subject(s) - cats , breed , biology , medicine , endocrinology , thyroid , ontogeny , zoology
The article presents data on the breed and seasonal characteristics of the synthesis of thyroxine and cortisol in dogs of different breeds and cats that do not have a breed. It has been shown that the synthesis of thyroxine in dogs and cats depends on the breed, age and season. The functional activity of the thyroid gland in dogs decreases by 10-12, and in cats by 9-13 years of age. The highest level of thyroxine production throughout the entire research period belongs to the Griffon Petit-Brabancons. The synthesis of cortisol in dogs and cats is stable and does not undergo statistically significant changes. Seasonal dynamics of thyroxine is observed in dogs, but absent in cats. No sea-sonal dependence of cortisol synthesis has been reported in dogs and cats.