Reach further, in an Open Access Journal Endocrinology, Diabetes & Metabolism Case Reports

ISSN 1470-3947 (print)
ISSN 1479-6848 (online)

Searchable abstracts of presentations at key conferences in endocrinology

Published by BioScientifica
Endocrine Abstracts (2010) 22 P46 

Profile of cortisol changes during early stages of development in rainbow trout

Gholam Reza Ghaedi1, Vahid Yavari1, Bahram Falahatkar2, Amir Parviz Salati1 & Reza Sahraeian1

Author affiliations

Whole-body cortisol content was measured in oocyte, embryo and larvae of rainbow trout by extraction and RIA. The cortisol content of oocyte was 2.55±0.06 ng/ml that probably has a mathernal origin. After fertilization cortisol level decreased to 1.84±0.07 ng/ml, then reached to the lowest level (0.30±0.06 ng/ml) by day 10 where it remained unchanged until eyed stage on day 18. After that cortisol increased at hatching to 0.60±0.06 ng/ml, suggested that cortisol biosynthesis was occurred. Cortisol level was increased to 3.01±0.14 at 2-week-old fish. Result of this study showed that cortisol biosynthesis could be observed in rainbow trout during the late stages of embryo development, before hatching will be started.

This Issue/Conference

Article tools

My recent searches