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Variations of some physiological and immunological parameters in Siberian sturgeon ( Acipenser baerii, Brandt, 1869) subjected to an acute stressor

By K. Eslamloo, B. Falahatkar

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Abstract

This study was carried out to investigate the effect of an acute stressor on the variation of some physiological and immunological parameters of Siberian sturgeon ( Acipenser baerii) juveniles. Fish, reared in 3 tanks for 10 weeks, were used for this study. The acute stress of fish consisted of 2 min of air exposure stress. Plasma levels of cortisol, glucose, and lactate as well as lysozyme activity in plasma were measured before stress and 1 hr, 3 hr, 6 hr, 9 hr, 12 hr, and 24 hr after stress. The plasma cortisol significantly increased in the highest level 1 hr after stress, yet it gradually declined after 3 hr. The glucose significantly increased only 1 hr after stress. There was no significant difference between plasma lactate prestress and poststress. Moreover, lysozyme activity was enhanced by stress, thus reaching the highest level 9 hr after stress. The results of this study indicate that Siberian sturgeon not only have a rapid response to acute stress, but also a great capacity for recovery from stress, thus returning physiological parameters to prestress levels after 6 hr.

Publication Title Journal of Applied Animal Welfare Science
Volume 17
Issue 1
Pages 29-42
ISBN/ISSN 1088-8705
Publisher Taylor & Francis
DOI 10.1080/10888705.2014.856243
Language English
Author Address Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, 1144, Guilan, Iran.falahatkar@guilan.ac.ir
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Tags
  1. Animals
  2. Animal welfare
  3. Aquacultural and fisheries
  4. Aquatic organisms
  5. Blood
  6. Effect
  7. Enzymes
  8. Fish
  9. Hydrocortisone
  10. peer-reviewed
  11. variation
  12. vertebrates
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  1. peer-reviewed