Thapliyal J P
Ann Endocrinol (Paris). 1976 Nov-Dec;37(6):437-43.
Thyroidectomy in Myna, Acridotheres tristis, increased the levels of cholesterol, ascorbic acid and decreased the activity of the adrenal. The size and activity of the testis also decreased following thyroid removal. The weight of the two glands and activity of testis was not affected by 0.25 mg of 1-thyroxine. The chemical and histological changes of the adrenal were however reversed. It is suggested that thyroid deficiency leads 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.
对家八哥（鹩哥）进行甲状腺切除术后，其胆固醇和抗坏血酸水平升高，肾上腺活动减弱。甲状腺切除后，睾丸的大小和活动也会降低。0.25毫克的左旋甲状腺素不会影响这两个腺体的重量和睾丸的活动。然而，肾上腺的化学和组织学变化得到了逆转。研究表明，甲状腺功能减退会导致鸟类腺垂体分泌的促激素减少，从而导致性腺和肾上腺的大小及活动降低。
