Influence of oestradiol 3-benzoate upon the plasma content of calcium and vitamin A aldehydes in the Cod, Gadus morhua

Studies made on the cod of the Barents Sea showed that in the adult female fish there were regular seasonal variations in the level of calcium and vitamin A aldehydes in the blood (Plack & Woodhead, 1966: Woodhead, 1968). These changes were directly related to each other (Woodhead & Plack, 1...

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Bibliographic Details
Published in:Journal of the Marine Biological Association of the United Kingdom
Main Author: Woodhead, P. M. J.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1969
Subjects:
Online Access:http://dx.doi.org/10.1017/s0025315400038029
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400038029
Description
Summary:Studies made on the cod of the Barents Sea showed that in the adult female fish there were regular seasonal variations in the level of calcium and vitamin A aldehydes in the blood (Plack & Woodhead, 1966: Woodhead, 1968). These changes were directly related to each other (Woodhead & Plack, 1968) and it was suggested that the changes of both blood constituents might be influenced by oestrogen secretions from the ripening ovary. It has now been confirmed that oestradiol treatment increases the level of vitamin A 1 aldehyde in immature cod (Plack & Pritchard, 1968), and the present paper describes the effect of oestrogen treatment on the concentration of calcium in the plasma, also relating this to vitamin A aldehyde changes.