Basrah Journal of Veterinary Research

COMPARATIVE STUDY BETWEEN JUVENILE AND ADULTS OF YELLOWFIN SEABREAM Acanthopagrus latus IN PLASMA BIOCHEMICAL INDICATORS INDUCED BY DIFFERENT SALINITIES

Author

Layla Mustafa A.A. AlKatrani
https://doi.org/10.33762/bvetr.2017.143552
Abstract
Laboratorial experiments were carried out on juvenile and adults of A. latus to
estimate and compare the effect of direct transfer from the control salinity of 1.5 psu to
the different salinities of 1.5, 7.5, 15, 30 and 45 psu during the periods of 6, 24, 48 and
96hrs for short term effect experiments. Some physiological parameters (PCV, Osmotic
pressure, muscles water content, total protein, glucose, sodium Na+, potassium K+ and
chloride Cl-) were tested in plasma of the two age stages. Results for all parameters
showed a clear ability of adults to Osmoregulate and adapt a wide range of salinities
ranged from 1.5 psu to 45 psu and explain why juvenile die at the salinity 45 psu after
48 hrs of transport by showing the insufficiency of juvenile to Osmoregulate and the
high exhaustion of body activities in this salinity.
The results indicated that the salinity increase caused an increase in plasma PCV,
osmotic pressure, (sodium, potassium and chloride ions), total protein and glucose.
Also, a decrease in water content of muscles of juvenile and adults. The time of 96 hrs
was not enough for juvenile to reach the stable condition at high salinities, while adults
showed more constancy at the end time of experiment in all salinities.

Keywords

Plasma biochemical indicators
juvenile
latus
Basrah Journal of Veterinary Research
Volume 16, Issue 2
Autumn 2017
Page 305-333

  • Receive Date 01 December 2017
  • Revise Date 20 December 2017
  • Accept Date 25 December 2017
  • Publish Date 28 December 2017

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