@article { author = {Delihasan Sonay, F. and Başçınar, N. and Başçınar, N. and Başçınar, N.}, title = {An investigation on the effects of juvenile rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) monoculture and duo-culture farming in freshwater and seawater on growth performance}, journal = {Iranian Journal of Fisheries Sciences}, volume = {17}, number = {1}, pages = {38-49}, year = {2017}, publisher = {Agricultural Research,Education and Extension Organization}, issn = {1562-2916}, eissn = {2322-5696}, doi = {10.22092/ijfs.2018.114638}, abstract = {The objective of this study was to compare growth performance and feed conversion ratios of rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) juveniles in monoculture and duo-culture in freshwater and seawater under aquarium conditions. The fish were about 2-months old hatchery-reared brook and rainbow trout with initial weights of 0.934±0.033 (n=360) and 1.014±0.019 (n=360) g, respectively. The juveniles were kept in 10 L aquaria. Each aquarium contained 40 fish: 40 fish from each species for monoculture, 20+20 (rainbow trout+brook trout) fish from each species for duo-culture. The fish were in 3 groups with three replicates in freshwater and seawater and 18 aquaria were used. At the end of the 45 day study; mean live weights of brook trout were 2.735±0.153 g, rainbow trout 2.925±0.262 g in monoculture and brook trout 2.354±0.186 g, rainbow trout 3.882±0.494 g in duo-culture in seawater, brook trout 3.088±0.085, rainbow trout 3.364±0.093 g in monoculture and brook trout 2.164±0.169, rainbow trout 3.948±0.124 g in duo-culture in fresh water. While there were similarities between brook trout and rainbow trout in monoculture groups in sea water and fresh water, some differences were realized in duo-culture (p < /em><0.001).}, keywords = {Rainbow trout,Oncorhynchus mykiss,Brook trout,Salvelinus fontinalis,POLYCULTURE,Growth performance,Feed Conversion Ratio}, url = {https://jifro.areeo.ac.ir/article_114638.html}, eprint = {https://jifro.areeo.ac.ir/article_114638_2f95a4d1f13ae3117c2b3f15dd41aa23.pdf} }