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Tilapia, Oreochromis niloticus (Linnaeus, 1758) and Himri Barbel, Carasobarbus luteus (Heckel, 1843), Duoculture in Net Cages

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Author(s): Kaya Gokcek

Journal: Journal of Animal and Veterinary Advances
ISSN 1680-5593

Volume: 10;
Issue: 9;
Start page: 1102;
Date: 2011;
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Keywords: Himri barbel | tilapia | polyculture | cage culture | growth

ABSTRACT
Himri Barbel fry, Carasobarbus luteus (Heckel in 1843) were introduced to tilapia duoculture in net cages. Five treatment groups were designed according to different stocking proportions of tilapia and himri and each treatment were triplicated. The study was carried out for 60 days by using 500 L net cages and fish were fed 2 times a day by commercial carp diet. Five stocking treatments were as follow: S1 (100% tilapia), S2 (75% tilapia+25% himri barbel), S3 (50% tilapia+50% himri barbel), S4 (25% tilapia+75% himri barbel) and S5 (100% himri barbel). Polyculturing with tilapia had no adverse effects on himri stocks however total biomass at harvest and feed conversion ratio were negatively affected with increasing himri in tilapia stocks.
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