THYROIDECTOMY AND ITS EFFECT UPON OXYGEN CONSUMPTION OF A TELEOST FISH, PSEUDOSCARUS GUACAMAIA

Publisher Website
Google Scholar
Abstract
SUMMARY: 1. Thyroidectomy of the teleost parrot fish, Pseudoscarus guacamaia, is described. 2. Pseudoscarus is able to survive for at least 3 months in the absence of the thyroid gland. It is concluded, therefore, that the gland is not essential for the maintenance of life in this species. 3. Thyroidectomy does not result in any change in the oxygen consumption of parrot fish. Likewise, injection of l-thyroxine or an extract of parrot fish thyroid into intact parrot fish does not affect the rate of oxygen uptake.