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Journal of
Medicine &
Medical
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Greener Journal of Oceanography and Marine Science Vol. 1 (1), pp. 001-010,

September 2013.

ISSN: 2354-2349 2013 Greener Journals  

Research Paper

Manuscript Number: 070313702

 

Comparative Study of Growth Performance, Food Utilizsation and Survival of Hatchery Bred and Wild Collected Fingerlings of African Catfish Clarias gariepinus

 

Eyo Victor Oscar1*, Ekanem Albert Philip 1,

Eni George Eni 2, Asikpo Patience Edet3,

Jimmy Ufon-ima Udo4

 

1Institute of Oceanography, University Of Calabar, P.M.B.1115 Calabar, Nigeria. 1Institute of Oceanography, University of Calabar, Nigeria.

2Zoology and Environmental Biology, University of Calabar, Nigeria.

3Zoology and Environmental Biology Programme, University of Calabar, Nigeria.

4Department of Fisheries and Aquaculture, Federal University of Agriculture, P.M.B 2373, Makurdi, Benue State, Nigeria.

 

*Corresponding Author’s Email: sirvick2003 @ yahoo.com, Tel: +2348065162221

   Abstract

 

Growth performance, food utilization and survival hatchery bred and wild collected fingerlings of African catfish, Clariasgariepinus was carried out as a comparative study with hatchery bred fingerlings for ten weeks in glass aquaria. Duplicate group of 10 with mean bulk weight 45.0 0.0 g were stocked in four aquaria measuring 96 by 50 by 29cm3 labeled A1, A2, B1 and B2. Aquaria A1 and A2 were stocked with hatchery bred fingerlings (10 each) collected from the University of Calabar Hatchery Complex and Aquarium B1 and B2 were stocked with wild fingerlings (10 each) collected from Ayadehe Village (Itu Head Bridge). The experimental fish were fed with Coppens commercial feed twice daily at 5% of their body weight. Growth performance indices showed that weight gain (g), growth rate (GR), specific growth rate (SGR) and mean growth rate (MGR), percentage weight gain and percentage survival of hatchery collected C. gariepinus fingerlings was significantly different (P<0.05) from wild collected fingerlings. Food utilisation indices showed that hatchery bred fingerlings consumed significantly (P<0.05) more feed (993.15 14.85g) than wild collected fingerlings (617.75 11.5.5) whereas food conversion ratio (FCR) and food conversion efficiency were not significantly different (P>0.05). Proximate analysis of the experimental feed (Coppens feed) shows that moisture content was (8.23 0.07), crude protein content (42.94 1.34), lipid content (11.57 0.15), crude fibre content (3.53 0.31), ash content (9.42 0.04) and carbohydrate content (24.31 2.10),Physicochemical parameters including pH, water temperature (C), dissolved oxygen (mg/L) and ammonia (mg/L) were controlled within the acceptable range for fresh water fish culture. The implication of this findings is that hatchery bred fingerlings of C.gariepinus is still the best source of fingerlings supply for fish farmers. It is concluded that fish farmers who still rely on wild fingerlings for fish farming will encounter poor growth performance and negative response to artificial feed leading to stunted fish, increase in culture period and reduction in expected profit margin. Therefore, hatchery bred fingerlings of C.gariepinus is recommended for a successful catfish farming.

Keywords: Growth performance; Food utilisation; Clarias gariepinus; hatchery bred fingerlings; wild fingerlings; survival.

 

 

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