Yields of the African catfish, Clarias gariepinus (Burchell), from a low input, homestead, concrete pond

Egwui, Peter Chuks

doi:10.1016/0044-8486(86)90064-5

Cited by 9 publications

(4 citation statements)

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“…Low mortality (2.3%) recorded in this study is an indication of proper handling of experimental procedures. The growth rate of 3.2g/day observed in this study was similar to the findings of Otubusin (1997) who reported 3.28g/day for Clarias gariepinus in a polyculture study in netcages but lower than 4.2g/day reported for Clarias gariepinus in net-cages by Otubusin and Olaitan (2001) and 7.3g/day reported by Otubusin et al (2004) which, could be due to the feeding pattern adopted (feeding ad-libitum and use of 45% crude protein feed), the higher average weight of stocked fish and higher stocking densities used during the experiment; but higher when compared with other culturing system like concrete tank monoculture for hybrid catfish; 2.6g/day as reported by Salami et al (1993) and 0.012g/day by Egwui (1986) in home stead concrete tanks. Marginal incremental economic benefit decreased from ₦7,969.95 to ₦5,185.80 which could be as a result of increase in stocking density and can be attributed to the cost of production from the value of cropped fish.…”

Section: Resultsmentioning

confidence: 73%

Effect of Stocking Density on Production of <i>Clarias Gariepinus</i> (Tuegels) in Floating Bamboo Cages at Kubanni Reservior, Zaria, Nigeria

Dasuki¹,

Auta²,

Oniye³

2014

Bayero J. Pure App. Sci.

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Section: Resultsmentioning

confidence: 73%

Effect of Stocking Density on Production of <i>Clarias Gariepinus</i> (Tuegels) in Floating Bamboo Cages at Kubanni Reservior, Zaria, Nigeria

Dasuki¹,

Auta²,

Oniye³

2014

Bayero J. Pure App. Sci.

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“…The size of production ponds is highly variable ancl range from 36 m2 (low input homestcad concrete ponds - Egwui, 1986), to 100 m' under subsistence pond farming conditions to I ha in size under extensive coinmcrcial pond culiiirc conditions. On semi-intensive commercial farms the avcragc pond si/c is 1000 m2 (tuble 2).…”

Section: Systems Yields and Nutritionmentioning

confidence: 99%

“…Pellets have also been made using combinations of ingredients such as ground nut cake, palm kernel cake, Cotton seed cake, rice bran, blood meal, maize, soya bean, fish meal, bone meal and brewers waste (Egwui, 1986;Balogum and Ologhobo, 1989;Waylor, 1990). In South Africa a formulated catfish pellet has been developed and is used by al1 commercial farmers.…”

Section: Feeding and Nutritionmentioning

confidence: 99%

Perspectives on clariid catfish culture in Africa

Hecht

Oellermann

Verheust

1996

Aquat. Living Resour.

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The Aliican catfish (4lrriu.r g(lrie/?i~lll.\ is undoubtedly thc iiiost suitahle spccics for aquaculturc throughout its distributional range. The rea\ons for this. which relaie principiilly to the biology iind ecology of the species, are briefly reviewed and commcntcd upon. I'he spccics is currently krrmed on a commercial and subsistence basis in over 12 Aliican countries, the most important of n,hich in tcrms of tonnage produced are Nigcria, South Africa, Zambia and Ciharia. The scicntiîic anci technological foundatiori for the farming of African catfish is sountl. and has been developcd mainly in The Netherlands, South Africa, Helgium and the Ccntral Afiican Rcpublic. Mo\t of thc important culture parameters, inclusive of spawning, incubation, larval nutrition and rearing, production and feed formulation have received adequate attention for the successful fr~rniing of the spccics in Africa. Production levels. depending on the typc of operation, range from < 1 to 40 t/ha pcr year, and excccd 800 kg/ni'/year undcr ultra-high dcnsity commercial culture conditions. Food conversion ratios Vary bctween 1:6 using agricultural waste, to 1:I.l using l'ormulatcd, least-cost l'ccds. Significant progress has also been made in the development of the technology for the farming of a rclated species, Hcterohrurichu.s longifilis and the hybrid ol' this species with Clarias gariepinu.~. Dcspite the technological kow-hnow, total recorded production of clariid catfish in Africa in 1993 was a mere Ca. 4500 tonncs. Despite the l'act that there iiiay be a considerable margin of error in the reportcd production ligures the farming of catfish in Africa is a marginal activity. Thc reasons for this arc manifold and can bc primarily pinned on market forces. inadcquate regional infrastructures, production costs, the socio-cconomics of fish farming and the philosophy upon which aquaculture devclopment in Afnca is largely based. Nevertheless the future potential for the farming of clariid catfish throughout their distnbutional ranges is immense.

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“…Heterobranchus species has some advantages over Clarias species such as higher growth rate, feed conversion [7]and remarkable yield [8] while Clarias species mature earlier and has higher fecundity [6,10,11,12]. However, there is paucity of information on the culture of Heterobranchus longifilis under Water Recirculation System.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Growth Performance and Survival Rate of Clarias Gariepinus Burchell, 1822 and Heterobranchus longifilis Valenciesnnes, 1840 under Water Recirculation System

Yakubu¹,

Nwogu²,

Olaji³

et al. 2014

AFF

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The growth performance and survival rate of Clarias gariepinus burchell, 1822 and Heterobranchus longifilis valenciesnnes, 1840 under water recirculation system were examined. The post fingerlings of the two species were stocked at 486 fish/m 3 /tank and fed coppens® feed for sixteen weeks. Fish body weights were determined bi-weekly using electronic weighing balance. Final mean weight of 170.49 a ± 14.39g (C. gariepinus) and 42.78 b ± 1.57g (H. longifilis) were obtained. H. longifilis had a better survival rate (86.21%) compared to C. gariepinus (66.94%). The performance index (PI) showed that C. gariepinus (PI=101.90 b ) performed better than H. longifilis (PI=30.50 a ). The water quality variables were similar in the culture tanks. The results of the present experiment showed that post fingerlings of the two species of clariid catfish have different growth performance, survival and feed utilization efficiency under water recirculation system with C. gariepinus having better growth performance and yield than H. longifilis.Therefore, the culture of Clarias gariepinus clariid catfish under water recirculation system is recommended for better yield and profitability.

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Yields of the African catfish, Clarias gariepinus (Burchell), from a low input, homestead, concrete pond

Cited by 9 publications

References 0 publications

Effect of Stocking Density on Production of <i>Clarias Gariepinus</i> (Tuegels) in Floating Bamboo Cages at Kubanni Reservior, Zaria, Nigeria

Effect of Stocking Density on Production of <i>Clarias Gariepinus</i> (Tuegels) in Floating Bamboo Cages at Kubanni Reservior, Zaria, Nigeria

Perspectives on clariid catfish culture in Africa

A Comparative Study on Growth Performance and Survival Rate of Clarias Gariepinus Burchell, 1822 and Heterobranchus longifilis Valenciesnnes, 1840 under Water Recirculation System

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