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International Journal of Fisheries and Aquatic Studies
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(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2016, Vol. 4, Issue 5, Part H

Effect on survival and growth rates of rainbow trout eggs of applied shocks in different temperatures


Author(s): Tayfun Karataş and Esat Mahmut Kocaman

Abstract: The aim of this study compared to effect on survival and growth rates of rainbow Trout Eggs of applied shocks in different temperatures. Throughout this study, four different temperatures (24, 26, 28 and 300C) and a control group (9.60C) were used.Eggs fertilized by milt of male fish were shocked for 7 minutes in four different water batches provided to 24±0.10C, 26±0.l0C, 28±0.10C and 30±0.10C by aquarium heaters. The survival rates of eggs from fertilization to hatching were determined as 87.1% for control group (9.60C), 86.6% for 240C, 84.6% for 260C and 80.1 for 280C, and 76.3% for 300C. The difference between groups was important as statistical (P<0.05).No significant differences between groups with regard to weight gain and feed conversion rates (FCR), specific growth rates (SGR) of fry at the end of the 120-days experiment were determined, but, the growth rate, FCR and SGR of fish shocked in 240C were found to be higher than that of the other groups.Finally, the heat shock applied in 240C could be important for the optimal development in rainbow trouts.

Pages: 571-573  |  775 Views  19 Downloads

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How to cite this article:
Tayfun Karataş and Esat Mahmut Kocaman. Effect on survival and growth rates of rainbow trout eggs of applied shocks in different temperatures. International Journal of Fisheries and Aquatic Studies. 2016; 4(5): 571-573.
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