Effects of short-term management stress and ACTH injections on plasma cortisol levels in cultured white sturgeon, Acipenser transmontanus
Identifieur interne : 001481 ( Main/Merge ); précédent : 001480; suivant : 001482Effects of short-term management stress and ACTH injections on plasma cortisol levels in cultured white sturgeon, Acipenser transmontanus
Auteurs : J. M Belanger [États-Unis] ; J. H Son [États-Unis] ; K. D Laugero [États-Unis] ; G. P Moberg [États-Unis] ; S. I Doroshov [États-Unis] ; S. E Lankford [États-Unis] ; J. J Cech Jr. [États-Unis]Source :
- Aquaculture [ 0044-8486 ] ; 2001.
Abstract
General management practices including capture, handling and transportation in fish hatcheries can induce a stress response indicated by a plasma cortisol increase in many species. However, this phenomenon is not well established in cultured white sturgeon (Acipenser transmontanus). We determined resting levels of cortisol and the cortisol responses to two management stressors and to exogenous adrenocorticotropic hormone (ACTH1–24) injections in cannulated mature male white sturgeon. Mean resting cortisol level was 8.6 ng/ml and ranged over 5.8–12.8 ng/ml through a 22-h period. Water reduction and transportation+handling stressors elicited significant cortisol increases above pre-stress and post-stress levels. Exogenous ACTH1–24 injections of 0.5 and 5.0 μM caused dose-dependent peak cortisol increases above those produced by either the water reduction or transportation+handling stressors.
Url:
DOI: 10.1016/S0044-8486(01)00620-2
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J Cech Jr.</name><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Wildlife, Fish, and Conservation Biology, University of California, Davis, CA 95616</wicri:regionArea><placeName><region type="state">Californie</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Aquaculture</title><title level="j" type="abbrev">AQUA</title><idno type="ISSN">0044-8486</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2001">2001</date><biblScope unit="volume">203</biblScope><biblScope unit="issue">1–2</biblScope><biblScope unit="page" from="165">165</biblScope><biblScope unit="page" to="176">176</biblScope></imprint><idno type="ISSN">0044-8486</idno></series><idno type="istex">F980C8F2E1272C905F006B7402E259798066F33A</idno><idno type="DOI">10.1016/S0044-8486(01)00620-2</idno><idno type="PII">S0044-8486(01)00620-2</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0044-8486</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">General management practices including capture, handling and transportation in fish hatcheries can induce a stress response indicated by a plasma cortisol increase in many species. However, this phenomenon is not well established in cultured white sturgeon (Acipenser transmontanus). We determined resting levels of cortisol and the cortisol responses to two management stressors and to exogenous adrenocorticotropic hormone (ACTH1–24) injections in cannulated mature male white sturgeon. Mean resting cortisol level was 8.6 ng/ml and ranged over 5.8–12.8 ng/ml through a 22-h period. Water reduction and transportation+handling stressors elicited significant cortisol increases above pre-stress and post-stress levels. Exogenous ACTH1–24 injections of 0.5 and 5.0 μM caused dose-dependent peak cortisol increases above those produced by either the water reduction or transportation+handling stressors.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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