Growth Performance, Food Intake and Feed Converison Ratios in Rainbow (Onchorynchus mykiss) and Brook Trout (Salvelinus fontinalis) Reared as a Single and Mixed Species

Authors : İbrahim OKUMUŞ, M Salih ÇELİKKALE, İ Zeki KURTOĞLU, Nadir BAŞÇINAR

Pages : 123-130

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Growth performances, daily food consumption and feed conversion ratios of rainbow insert ignore into journalissuearticles values(Onchorynchus mykiss); and brook trout insert ignore into journalissuearticles values(Salvelinus fontinalis); reared as single and mixed species were compared. During the experimental period, which lasted for about a growing season insert ignore into journalissuearticles values(December - June, 217 days);, mean % weight increment of single species brook trout group were maximum insert ignore into journalissuearticles values(from 18.2 to 165.6 g);, followed by mixed rainbow insert ignore into journalissuearticles values(26.8 to 241.6 g); and brook trout insert ignore into journalissuearticles values(17.0 to 151.8 g);, and single species rainbow trout insert ignore into journalissuearticles values(27.5 to 207.6 g);. Rates of increment in biomass were in similar order. Final mean weights of single species brook trout appeared to be higher than those of mixed ones, while it was other way around in rainbow trout groups insert ignore into journalissuearticles values(P
Keywords : Rainbow trout, Oncorhynchus mykiss, Brook trout, Salvelinus fontinalis, Polyculture, Growth, Food Consumption, Feed Conversion Ratio