Effect of hypophysectomy and thiourea treatment on radiophosphorus metabolism in goldfish, Carassius auratus L.
Goldfish, Carassius auratus L., were hypophysectomized. One month after the operation, hypophysectomized fish were divided into two groups, one of which was maintained in 0.3% thiourea solution. Control fish were also divided into two groups and maintained in 0.3% thiourea solution and fresh water. After two weeks P/sup 32/ was added in all the aquaria. Hypophysectomized fish maintained in fresh water utilized 39% of the P/sup 32/ in five days and the controls utilized 41% (the difference is not statistically significant). Hypophysectomized fish treated with thiourea utilized only 27% P/sup 32/ whereas the controls maintained in thiourea utilized 53%. This confirmed that increased P/sup 32/ utilization in thiourea solutions was caused by thyroid stimulation from the increased output of endogenous thyroid-stimulating hormone by the pituitary gland. (M.C.G.)
- Research Organization:
- Univ. of Rajasthan, Jodhpur, India
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-037049
- OSTI ID:
- 4659951
- Journal Information:
- Naturwissenschaften, Vol. 50, Issue 15; Other Information: Orig. Receipt Date: 31-DEC-63; ISSN 0028-1042
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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