Abstract
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.
Highlights
Достижения ветеринарной науки и практики est level of thyroxine production throughout the entire research period belongs to the Griffon PetitBrabancons
Seasonal dynamics of thyroxine is observed in dogs, but absent in cats
No seasonal dependence of cortisol synthesis has been reported in dogs and cats
Summary
Ключевые слова: собака, кошка, тироксин, кортизол, порода, сезон. В статье представлены данные о породных и сезонных особенностях синтеза тироксина и кортизола у собак разных пород и кошек, не имеющих породной принадлежности. Что синтез тироксина у собак и кошек зависим от породы, возраста и сезона. Функциональная активность щитовидной железы у собак снижается к 10–12-, а у кошек – к 9–13-летнему возрасту. Самый высокий уровень продукции тироксина на всем протяжении исследований выявлялся у гриффонов пти брабансонов. Синтез кортизола у собак и кошек отличается стабильностью и не претерпевает статистически достоверных изменений. Сезонная динамика тироксина наблюдается у собак, но отсутствует у кошек. Сезонной зависимости синтеза кортизола у собак и кошек не зарегистрировано. ONTOGENETIC, BREED, AND SEASONAL FEATURES OF THE SYNTHESIS OF THYROXIN AND CORTISOL IN DOGS AND CATS.
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