Effects of Water Temperature on Sex Differentiation and Growth Parameters of the Mozambique Tilapia (Oreochromis mossambicus, Peters, 1852)

Authors : Karl Christofer Kingueleoua Koyakomanda, Muamer Kürşat Fırat, Cüneyt Süzer, Serhat Engin, Müge HEKİMOĞLU, Hülya Sayğı, Osman Özden, Fatih GÜLEÇ, Şahin Saka

Pages : 22-28

Doi:10.26650/ASE2019499991

View : 50 | Download : 14

Publication Date : 2019-01-07

Article Type : Research Paper

Abstract :In this study, the effects of water temperature on growth, survival rate, gonad development and sex ratios of Mozambique Tilapia insert ignore into journalissuearticles values(Oreochromis mossambicus); were studied by applying different temperature applications insert ignore into journalissuearticles values(28, 30, 32, 34 and 36oC); for a single period of 40 days. At the end of the study, in the control group insert ignore into journalissuearticles values(28oC);, the males proportion was 47.62%. In fishes reared at 30oC, average male ratio was found as 73.68%. The highest male proportion was obtained in the 36oC temperature group insert ignore into journalissuearticles values(86.67%);. Growth performances, feed utilization and gonad development were found to increase with elevating temperatures up to 34oC unlike the survival rate which has been found to fall with higher temperatures. In this study, sex differentiation rates differed significantly between all groups insert ignore into journalissuearticles values(p<0.05);. However, the highest male rate obtained in group A and D. As hypothesized, results suggest that fish performed better at 30-32°C than 28°C or 34-36°C water temperature and the optimum temperature for a better expression of growth parameters in Mozambique Tilapia could be 30oC.
Keywords : growth, survival, Mozambique Tilapia Oreochromis mossambicus, water temperature

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