Volume 20 No 12 (2022)
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Effect of potassium chloride and growth hormone supplementation on survival, nutrition and growth in juvenile Common carp fish Cyprinus carpio exposed to salinity
Mustafa A.A. Albadran , Fatima A.M. Sultan , Salah M. Najim
Abstract
The current study was conducted on juveniles of the common carp, Cyprinus carpio, which is one of the most important fish for breeding in Iraq. The study included the effect of adding different percentages of potassium chloride and growth hormone to the diet on survival, nutrition and growth rates when suddenly exposed to different salt concentrations (7 and 15) g/L. Juvenile common carp fish showed the ability to tolerate a sudden rise in salt concentrations (7 and 15) g/l when fed on diets with different percentages of potassium chloride and growth hormone compared to control diet fish. A significant increase (P≤0.05) was recorded in the survival rates of treatment T3 (97%) on the fourteenth day compared to the sample T1 (87%) in the saline concentration 7 g/L. And the treatment T3 and T5 (87% and 80%) respectively compared to the sample T1 (67%) at the saline concentration 15 g/L.The results of the current study show that the growth rates increased in the treatments to which potassium chloride and growth hormone were added at the expense of other treatments. As for the feeding efficiency of juvenile common carp, it is clear that the rate of food conversion improves by increasing the proportion of potassium chloride and growth hormone in the diet.
Keywords
potassium chloride, growth hormone, juvenile, Common carp
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