Document Detail


Metabolic effects of exercise in the golden fish Salminus maxillosus "dourado" (Valenciennes, 1849).
MedLine Citation:
PMID:  15620004     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Strenuous exercise in fish is usually a consequence of migration, reproduction, and spawning. Varying among fishes, this kind of stress is associated with blood glucose and lactate increase, in relation to which two major groups are distinguishable: the "lactate releasers" and "non-lactate releasers". Unlike strenuous exercise, sustained swimming imposes a variety of effort that results in distinct kinetic types of blood lactate and glucose. Compared to Platichthys stellatus and Oncorhynchus mykiss, blood lactate of Salminus maxillosus (dourado) was lower after exercise, whereas recovery time was greater. Great demands were made of white muscle, and dourado is not a lactate releaser. Two different metabolic tendencies were observed in sustained and intense swimming. Gluconeogenesis was observed during recovery, as well as the alanine cycle which recomposes the lactate tissue pattern. Full recovery after intensive exertion required more than 24 hours.
Authors:
G Moraes; J V Choudhuri; R H S Souza; C S Neto
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Brazilian journal of biology = Revista brasleira de biologia     Volume:  64     ISSN:  1519-6984     ISO Abbreviation:  Braz J Biol     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-12-28     Completed Date:  2005-05-05     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101129542     Medline TA:  Braz J Biol     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  655-60     Citation Subset:  IM    
Affiliation:
Departamento de Genética e Evolução, Universidade Federal de São Carlos, Rod. Washington Luis, km 235, CEP 13565-905, São Carlos, SP, Brazil. gil@power.ufscar.br
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Glucose / metabolism*
Fishes / metabolism,  physiology*
Gluconeogenesis / physiology*
Lactates / metabolism*
Liver / metabolism
Muscles / metabolism
Physical Exertion / physiology
Swimming / physiology*
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Lactates

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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