Preliminary observations on the plasma composition of liza klunzingeri from the strait of Hormuz (Persian gulf)

Maria Mohammadizadeh,Maryam Ehsanpour,Reza Esmailpoor,Majid Afkhami,Kazem Darvish Bastami

doi:10.1186/2193-1801-2-62

Abstract

Serum biochemistry can be used for monitoring changes in the physiological condition of fish and water quality. The aim of this paper was to determine the concentrations of plasma T3 (Thyroid hormone), thyroxin, TSH (Thyroid-stimulating hormone), ALT (Alanine Aminotransferase), AST (Aspartate aminotransferase) and cholesterol of Liza klunzingeri caught on the northern side of the strait of Hormuz (Persian Gulf). Biochemical values were: T3 0.96 ± 0.58 ng/ml, Thyroxin 76.58 ± 28.26 ng/ml TSH 0.03 ± 0.01 nmol/L, ALT 1.71 ± 0.68 U/L, AST 49.81 ± 5.25 U/L and cholesterol 177.28 ±40.75 mg/di. A significant positive correlation (P < 0.01) was found between AST and Cholesterol. ALT had a significant and positive correlation with cholesterol and AST (P < 0.01). Thyroxin also had a significant and positive correlation with cholesterol (P < 0.01) and AST (P < 0.01). The results revealed negative correlation between Thyroxin with TSH (P < 0.01). This study provides the first data on this blood chemistry of L. klunzingeri.

Highlights

Blood analysis is a useful tool for the diagnosis and health monitoring of animals, as well as to distinguish pathogenic processes from those that might be purely physiological (Christopher et al, 1999)
The study of blood parameters is one of the most valuable diagnostic tools because it has been shown that the physiological values of these parameters are speciesspecific and age-dependent (Anver 2004, Darvish Bastami et al 2009)
One of the difficulties in assessing the state of health of natural fish populations has been the paucity of reliable reference ranges of the normal condition. In pursuant to this goal, many fish physiologists have turned to studies of hematology, probably because this area has proved to be a valuable diagnostic tool in evaluating health

Summary

Introduction

Blood analysis is a useful tool for the diagnosis and health monitoring of animals, as well as to distinguish pathogenic processes from those that might be purely physiological (Christopher et al, 1999). Fish culturists and fish biologists use indices of blood chemistry for evaluating of fish stress responses, nutritional condition, reproductive state, tissue damage due to handling procedures, and health status (Wagner and Congleton, 2004). It is well-known that blood sampling, laboratory techniques, seasonal variations, fish size, genetics patterns, stocking density, food privation, social stress, capture, handling and transport can all influence the biochemical parameters (Rey Vazquez and Guerrero, 2007). Liza klunzingeri is a shared stock that is native to the Arabian Sea, Indian Ocean, Gulf of Oman and Persian Gulf (Randall, 1995).

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