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VOL. 10, ISSUE 2 (2025)
Comparative single- and co-nursing of Nile tilapia, Oreochromis niloticus and African catfish, Clarias gariepinus fingerlings in hapa-in-pond system
Authors
Francis A Anani, Patrick SK Fatsi, Ebenezer K Appiah, Ellen A Diame, Maxwell Opoku
Abstract
This study was conducted to compare single- and co-nursing of the Nile
tilapia, Oreochromis niloticus and the African Catfish, Clarias gariepinus
fingerlings in hapa-in-pond system. Three (3) treatments, A (tilapia
fingerlings only), B (catfish fingerlings only) and C (1:1
tilapia and catfish fingerlings) were studied. The fingerlings of both fishes
ranged between 1.20 and 1.50 g, at initial mean weights 1.32 ± 0.02, 1.34 ±
0.08 and 1.32 ± 0.10 g for A, B and C, respectively.
Nursing of the fingerlings was carried out in nine (9) fine mesh net hapas,
each of dimensions 5.0 x 2.0 x 1.2 m; installed in about 0.2-hectare earthen
pond and each hapa stocked with 60 fish. The fish were fed separately with the
same brand of commercial tilapia feed, catfish feed and their equal mixture at
a declining rate of 10.0 to 4.0% fish biomass hapa-1, 3 times daily
for 77 days. Harvested biomass of juvenile fish and returns on investment
ranged from 0.65 ± 0.03 to 0.95 ± 0.02 kg m-1 and 161.40 ± 53.94 to
684.80 80 ± 17.81%, respectively; with those of C being significantly
higher (Tuker’s HSDT, P < 0.05). Hence, co-nursing of O. niloticus
and C. gariepinus fingerlings is recommended over nursing them
separately.
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Pages:62-68
How to cite this article:
Francis A Anani, Patrick SK Fatsi, Ebenezer K Appiah, Ellen A Diame, Maxwell Opoku "Comparative single- and co-nursing of Nile tilapia, <i>Oreochromis niloticus</i> and African catfish, <i>Clarias</i> <i>gariepinus</i> fingerlings in hapa-in-pond system". International Journal of Fisheries and Aquatic Research, Vol 10, Issue 2, 2025, Pages 62-68
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