Volume 20 No 12 (2022)
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Hematological and enzymatic response to salinity in juvenile common carp Cyprinus carpio with potassium chloride and growth hormone supplementation in the diet.
Mustafa A.A. Albadran , Fatima A.M. Sultan , Salah M. Najim
Abstract
The juveniles of common carp fish Cyprinus carpio with a weight of 45 g ± 2.12 g were gradually exposed to three salt concentrations: liquefaction water (1.2), 7 and 15 g/L for the purpose of studying the effect of salt acclimatization on the osmotic regulation of juveniles of common carp fish Cyprinus carpio By measuring some blood parameters such as total auxin concentration, total energy level, glucose, total proteins and liver enzymes in the blood plasma. The results showed that the fish that took potassium chloride as an additive to the feed experienced less changes in blood glucose levels than those that took the growth hormone as an additive in the feed, and this indicates that the effect of potassium chloride was greater and clearer in reducing osmotic stress. With regard to the effect of the two additives, potassium chloride and growth hormone, on quantitative proteins, there are differences between one treatment and another without a clear and consistent pattern. In terms of the amount of energy consumed, fish in the case of exposure to salinity of 7 PSU, there were no significant differences in energy consumption between fish in the control group and other groups that took potassium chloride salts or growth hormone, and the scene differs clearly when exposed to salinity of 15 PSUWhere differences appear, most parameter significantly between the fish in the control group that consumed the largest amount of energy and consumed the largest amount of oxygen compared to the other groups that consumed two levels of salt and two levels of the hormone, and the best of them was the consumption of high concentration of salt and also high concentration of hormone. The enzymes alkaline phosphatase (ALP) and enzyme (ALT) did not witness significant changes despite the exposure of fish to increased salinity, whether by adding potassium chloride and growth hormone or not.As for the only indicator that witnessed some kind of fluctuations in its levels in the blood, it was the enzyme (AST), which witnessed a mostly insignificant difference between some different concentrations of potassium chloride or growth hormone addition treatments in fish.
Keywords
enzymatic response, juvenile common carp, Cyprinus carpio, potassium chloride, growth hormone
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