Implantation of cocoa butter reduces egg and hatchling size in Salmo trutta

This study demonstrated that, irrespective of hormone type or dose, administering cocoa butter implants during egg development affected the growth of female brown trout Salmo trutta and reduced the size of their offspring. Cortisol treatment also increased adult mortality. Caution is urged in the us...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Hoogenboom, M. O., Armstrong, J. D., Miles, M. S., Burton, T., Groothuis, T. G. G., Metcalfe, N. B.
Format: Article in Journal/Newspaper
Language:English
Published: 2011
Subjects:
cortisol
egg development
reproduction
steroid hormone
stream salmonid
testosterone
BROWN TROUT
ATLANTIC SALMON
RAINBOW-TROUT
GAIRDNERI RICHARDSON
MATERNAL HORMONES
SEXUAL-MATURATION
PLASMA-CORTISOL
SALAR L
GROWTH
SURVIVAL
Atlantic salmon
Online Access:https://hdl.handle.net/11370/74ddfd08-d9fa-4482-b4ad-1dd967b1e64f
https://research.rug.nl/en/publications/74ddfd08-d9fa-4482-b4ad-1dd967b1e64f
https://doi.org/10.1111/j.1095-8649.2011.03039.x
https://pure.rug.nl/ws/files/6767633/2011JFishBiolHoogenboom.pdf
Description
Summary:This study demonstrated that, irrespective of hormone type or dose, administering cocoa butter implants during egg development affected the growth of female brown trout Salmo trutta and reduced the size of their offspring. Cortisol treatment also increased adult mortality. Caution is urged in the use of implants for studies of maternal hormonal influences on adult fishes and their offspring. (C) 2011 Crown Copyright Journal of Fish Biology (C) 2011 The Fisheries Society of the British Isles

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