Effects of acute and chronic stress on the levels of circulating growth hormone in the rainbow trout, Oncorhynchus mykiss

Pickering, A.D.; Pottinger, T.G.; Sumpter, J.P.; Carragher, J.F.; Le Bail, P.Y.. 1991 Effects of acute and chronic stress on the levels of circulating growth hormone in the rainbow trout, Oncorhynchus mykiss. General and Comparative Endocrinology, 83 (1). 86-93. https://doi.org/10.1016/0016-6480(91)90108-I

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Abstract/Summary

The acute stress of handling followed by confinement for a period of 1 or 24 hr caused a typical stress response in rainbow trout (elevation of plasma ACTH and cortisol) and a significant reduction in the concentration of circulating growth hormone. The chronic stress of low oxygen levels in both crowded and uncrowded tanks of fish caused a significant elevation of circulating GH levels, an effect which was abolished by the provision of additional aeration to the rearing tanks. This chronic elevation of GH levels was closely correlated with an elevation of plasma cortisol in the same fish. These findings are discussed in relation to stress-induced growth suppression and to the links between the hypothalamic-pituitary-interrenal axis and somatotrope activity.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1016/0016-6480(91)90108-I
UKCEH and CEH Sections/Science Areas:	_ Pre-2000 sections
ISSN:	0016-6480
Additional Keywords:	stress, growth hormone, cortisol, hypoxia, rainbow trout, Oncorhynchus mykiss
NORA Subject Terms:	Zoology Biology and Microbiology
Date made live:	19 Aug 2015 11:07 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/511168

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