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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

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info:eu-repo/semantics/openAccess

Date

2017

Author

Sonay, Fatma Delihasan
Başçınar, Nadir

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Citation

Sonay, F.D. & Başçınar, N. (2017). 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. Iranian Journal of Fisheries Sciences, 16(1), 38-49.

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 duoculture 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< 0.001).

Source

Iranian Journal of Fisheries Sciences

Volume

16

Issue

1

URI

https://hdl.handle.net/11436/2198

Collections

  • Scopus İndeksli Yayınlar Koleksiyonu [6032]
  • SUF, Su Ürünleri Yetiştiriciliği Bölümü Koleksiyonu [162]
  • WoS İndeksli Yayınlar Koleksiyonu [5260]



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