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Survival and growth of Clarias gariepinus (burchel 1822) fry on cultured freshwater zooplankton and decapsulated Artemia

Publish Year: 1392
Type: Journal paper
Language: English
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Document National Code:

JR_SJZ-2-6_001

Index date: 7 December 2015

Survival and growth of Clarias gariepinus (burchel 1822) fry on cultured freshwater zooplankton and decapsulated Artemia abstract

Artemia and dried zooplankton were fed to four day-old C. gariepinus fry at 3% and 5% feeding rates each as first feed. Dietary treatments were in triplicate, in a completely randomized design. Composition of mix-cultured zooplankton showed Rotifera (53.12%) to be dominant. Spawning with ovaprim at 0.5% ml/kg recorded 76% fertilization and 79% hatchability at temperature range of 28 to 300C. The best percentage survival (70.00 ±12.77) was obtained for larvae fed zooplankton at 3% feeding rate. Fry fed Artemia at 5% feeding rate, recorded specific growth rate of 12.68 ±0.64, which was significantly (P <0.05) higher than other three treatments. The condition factors ranged from 3.32 ± 0.09 to 1.73 ± 0.71 and were not significantly different (P > 0.05). Feed conversion ratio was best (0.31 ±0.09) in fry fed zooplankton at 3% feeding rate, and no significant (P >0.05) difference between the treatments. Water temperature ranged from 26.850C to 29.050C pH 7.71 to 7.83. Fry fed dried mixed-freshwater zooplankton diet had highest survival rate and the best growth rate obtained for fry fed Artemia. It was therefore concluded that Clarias gariepinus fry can be fed dried mixed-cultured freshwater zooplankton in event of scarcity and un-affordability of decapsulated Artemia.

Survival and growth of Clarias gariepinus (burchel 1822) fry on cultured freshwater zooplankton and decapsulated Artemia Keywords:

Survival and growth of Clarias gariepinus (burchel 1822) fry on cultured freshwater zooplankton and decapsulated Artemia authors

M.Y Abubakar

Department of Forestry and Fisheries, Usmanu Danfodiyo University, P.M.B ۲۳۴۶, Sokoto, Nigeria

J.K Ipinjolu

Department of Forestry and Fisheries, Usmanu Danfodiyo University, P.M.B ۲۳۴۶, Sokoto, Nigeria

W.A Hassan

Department of Animal Science, Usmanu Danfodiyo University, P.M.B ۲۳۴۶, Sokoto, Nigeria

W.O Alegbeleye

Department of Fisheries and Aquaculture, Federal University of Agriculture, Abeokuta, Nigeria