EFFECTS OF TEMPERATURE ON THE EGG PRODUCTION AND ...

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Faruk et.al.was found that high-temperature treatments during early developmental stage(labile period) cause a significant deviation of sex ratio in favor of males in O.niloticus (Baroiller et al., 1996; Baras et al., 2001). The optimum temperature forfeeding, growth and reproduction is between 22 and 30°C (Caulton, 1982), whilegood growth was recorded in the upper portion of this range (Hauser, 1977). Thus,at higher or lower temperatures, feeding and growth rates are reduced, and at20°C or less, feeding and growth are stopped (Caulton, 1982).With respect to the aquaculture of tilapia, this study provided clearevidence that temperatures had significant effect on their egg production andgrowth of fry. For better tilapia hatchery management water temperature shouldbe carefully maintained. The present study was conducted in outdoor pond andit was not possible to see the effect of temperature on incubation and hatchingrates in indoor condition. Further studies could carried out to observe the effect oftemperature on incubation and hatching rate of eggs of Nile tilapia.ReferencesBallarin, J.D. & Hatton, J.D. (1979). Tilapia: A Guide to their Biology and Culture inAfrica. Stirling University, UK. pp. 174.Baras, E., Jacobs, B., & Mazid. C. (2001). Effect of water temperature on survival,growth and phenotypic sex of mixed (XX–XY) progenies of Nile tilapia,Oreochromis niloticus. Aquaculture, 192: 187-199.Baroiller, J.F., Fostier, A., Cauty, C., Rognon, X., & Jalabert, B. (1996). Effect of highrearing temperature on the sex ratio of progeny from sex-reversed males ofOreochromis niloticus. In: Proceedings of the Third International Symposiumon Tilapia in Aquaculture. (ed. by R.S.V. Pullin, J. Lazard, M. Legendre, J.B.Amon kothias and D. Pauly), ICLARM Conference Proceedings. vol. 41, pp.246-256.Brummett, R.E. (1995). Environmental Regulation of Sexual Maturation andReproduction in Tilapia. Rev. Fish. Sci., 3(3): 231-248.FAO, (2012). FAO Year Book of Fishery and Aquaculture Statistics 2010, FAO, romeItely. Pp 239.Caulton, M.S. (1982). Feeding, metabolism and growth of tilapias: somequantitative considerations. In: The Biology and Culture of tilapias (ed. byR.S.V. Pullin and R.H. Lowe-McConnell), ICLARM, Manila, Philippines. pp.157-180.Chatterjee, N., Pal,A.K., Manush, S.M. Das, T.,& Mukherjee, S.G. (2004). Thermaltolerance and oxygen consumption of Labeo rohita and Cyprinus carpioearly fingerlings acclimated to three different temperatures. J. Therm. Biol.,29: 265-270.Chen, T.P. (1976). Aquaculture practices in Taiwan. Fishing New books. Farnham,Surrey, England.Chervinski, J., & Lahav. M. (1976). The effects of exposure to low temperature onfingerlings of local tilapia (Tilapia aurea) (Steindachner) and importedtilapia (Tilapia vulcani) (Trewavas) and Tilapia nilotica (Linne) in Israel.Bamidgeh, 28: 25–29.El-Naggar, G.O., El-Nady, M.A., Kamar, M.G., & Al-Kholy, A. (2000). Effect ofphotoperiod, dietary protein and temperature on reproduction in Niletilapia, Oreochromis niloticus 5 th International Symposium for TilapiaAquaculture (ISTA) September 3-7, Brazil.376http://www.bdresearchpublications.com/journal/
Temperature effects of egg production and growth of Oreochromis niloticusEl-Sayed, A.F.M., El-Ghobashy, A., & Al-Amoudi, M. (1996). Effects of pond depthand water temperature on the growth, mortality and body composition ofNile tilapia, Oreochromis niloticus (L.). Aquacult. Res., 27: 681-687.Fryer, G., & Iles, T.D. (1972). The cichlid fishes of the great lakes of Africa. Oliverand Boyd, London. pp. 641.Guerrero, R.D., & Guerrero, L.A. (1988). Feasibility of commercial production of sexreversed Nile Tilapia fingerlings in the Philippines. In: Proceedings of thesecond International Symposium on Tilapia in Aquaculture (ed. by R.S.V.Pullin, T. Bhukasawan, K. Tonguthai and J.K. Maclean), Department ofFisheries, Bangkok, Thailand. pp. 183-186.Hauser, W.J. 1977. Temperature requirement of tilapia. Calif. Fish Game, 63 (4):228-233.Huet, M. (1972). Textbook of fish culture: Breeding and cultivation of Fish. FishingNews Ltd., Farnham. Surry, England, UK.Hussain, M.G. (1989). A manual on improved technique of nilotica culture inponds. FRI Extension Material Series No. 2. Bangladesh Fisheries ResearchInstitute, Mymensingh.Larsson, S., & Berglund, I. (2005). The effect of temperature on the growthenergetic, growth efficiency of Aractic charr (Salvelinus alpinus L.) fromfour Swedish populations. J. Therm. Biol., 3: 29-36.Peters, B.A. (1983). Fecundity, egg weight and oocyte development in tilapias.ICLARM Manila, Philippines. Rev. Hydro., 48: 547-576.Ridha, M.T. (2006). Comparative study of growth performance of three strains ofNile tilapia, Oreochromis niloticus, L. at two stocking densities. Aquacult.Res., 37: 172-179.Stickney, R.R. (1986). Culture of Nonsalmonoid Freshwater Fishes. CRC Press, BocaRaton, FL.Van Ham, E.H., Berntssen, H.G., Imsland, A. K., Parpouna, A.C., Bonga, E.W., &Stefansson, S.O. (2003). The influence of temperature and ration ongrowth, feed conversion, body composition and nutrient retention ofjuvenile turbot (Scophthalmus maximus). Aquaculture, 217: 547-558.377http://www.bdresearchpublications.com/journal/
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