• 1 January 1976
    • journal article
    • research article
    • Vol. 37  (6) , 437-443
Abstract
Thyroidectomy in the myna increased the levels of cholesterol, ascorbic acid and decreased the adrenal activity. The size and activity of the testis also decreased following thyroid removal. The weight of the 2 glands and the activity of the testis was not affected by 0.25 mg of l-thyroxine. The chemical and histological changes of the adrenal were reversed. Thyroid deficiency may lead to reduced output of the trophic hormones from the adenohypophysis of the bird resulting in decreased size and activity of the gonad and of the adrenal.