Growth performance of two african catfishes clarias. Clarias anguillaris line, clarias gariepinus burcell and heterobranchus longifilis are the three species most readily acceptable in nigeria among fish farmers and consumers alike and as such command good. A detailed study on reproduction indicated that female c. Clarias gariepinus b,clarias anguillaris l, heterobranchus bidorsalis ghreteroclarias, clariabranchus and chirlas hybrids under outdo r nursery management system, ayokannii a. The only paper on hybridization among african clariids involves the same two species as in our investigation, c. Rearing of african catfish clarias gariepinus and vundu. Reproductive, survival and growth performance of intergeneric cross. Heterobranchus longifilis 0 x clarias anguillaris materials andmethods the project was carried out using the facilities of the hatchery unit offederal college offreshwater fisheries technology. Heterobranchus bidorsalis x clarlas gariepinus mean weight 0. Effect of feeding frequency on feed consumption, growth and.
Catfish species used were heterobranchus bidorsalis, clarias gariepinus and. Clarias gariepinus female x heterobranchus bidorsalis male was investigated. Concentrated amounts of the live feed sources were fed daily. A karyological analysis of the artificial hybridization between clarias gariepinus burchell, 1822 and heterobranchus longifilis valenciennes, 1840 pisces. A karyological analysis of the artificial hybridization.
This was used to ascertain the fishermens level of understanding of the differences in the morphological features of fish species, as it was assumed that clarias gariepinus and. Heterobranchus longifilis larvae fed with freshwater. They were acclimatized and fed with a commercial feed containing 25% crude protein for 7 days and later used for the experiment. Determination of growth performance of intergeneric. Heterobranchus longifilis valenciennes, 1840 is a member of the clariidae family of great interest for aqua. Pdf growth performance and survival of hybrid african. A karyological analysis of an artificial hybridization reciprocal crosses between two african clariid catfish, clarias gariepinus burchell, 1822 and heterobranchus longifilis valenciennes, 1840, was performed. Effect of organic fertilizer and formulated feed on the. Effect of feeding frequency on feed consumption, growth.
Du poissonchat heterobranchus longifilis oceandocs. Research article growth and feed utilization of catfish. Comparative effect of stocking densities and feeding levels. Clarias buthupogon and heterobranchus longifilis from asa. Its high fecundity, flexible phenotype, rapid growth, wide habitat preferences, tolerance to extreme water conditions and the ability to subsist on a wide variety of prey can devastate indigenous fish and aquatic invertebrate populations bruton, 1986. At harvest, fingerling mean weight was directly related to length of rearing period, while survival rate and production were inversely related to rearing duration. A 12week feeding trial was conducted in the university of calabar fish farm to investigate the effect of organic fertilizer and formulated feed on the growth performance of a. Frequencies and percentages were used as statistical tools for analyzing the data. Growth performance and survival of hybrid african catfish larvae clarias gariepinus x heterobranchus bidorsalis fed on different diets. Nov 18, 2014 a comparative study on morphology, growth rate and reproduction of clarias gariepinus burchell 1822, heterobranchus longifilis valenciennes, 1840, and their reciprocal hybrids pisces.
Fishing was carried out late night by professional local fishermen. Replacement of soyabean meal with toasted leucaena. Comparative effect of stocking densities and feeding. In the course of development, the successive appearance of larval and adult parvalbumins was observed. Clarias gariepinus x heterobranchus longifilis clariidae. Some haematological changes in hybrid catfish heterobranchus. Clarias gariepinus belongs to the family clariidae, has a big long head and the body is 3.
Research article proximate composition of nutrients in. Effect of rearing periods on the production of hybrid catfish. Hybridization of clarias gariepinus x heterobranchus longifilis. Their culture in modern times follows a similar trend to that of tilapias. National institute lor freshwater fisheries research p. Rearing of african catfish clarias gariepinus and vundu catfish heterobranchus longifilis in traditional fish ponds whedos. Download the complete fishery and aquaculture project topic and material chapter 15 titled characterization of genetic strains in clariid species, clarias gariepinus and heterobranchus bidorsalis using microsatellite markers here on projects. We searched for sexspecific dna sequences in the male and female genomes of african catfish, clarias gariepinus burchell, 1822 by comparative random amplified polymorphic dna rapd assays performed on pooled dna samples. See below for the abstract, table of contents, list of figures, list of tables, list of appendices, list of abbreviations and. Fish body weights were determined biweekly using electronic weighing balance. The hybrids revealed an intermediate karyotype 2n 54, and it appears as if they have totalized. The larvae fed with live andor artificial formulated.
A study was conducted on the invitro crossbreeding and larval rearing of african catfish, clarias gariepinus x heterobranchus longifilis with formulated diets to produce hybrid with good survival, desirable growth rate and other metric characters. Heterobranchus longifilis x clarias gariepinus and cl x ht clarias gariepinus x. The vundu heterobranchus longifilis is a species of large airbreathing catfish found widely in rivers and other freshwater habitats of subsaharan africa, as well as the nile. See below for the abstract, table of contents, list of figures, list of tables, list of appendices, list of abbreviations and chapter one.
Clarias gariepinus b, clarias anguillaris l, heterobranchus bidorsalis ghreteroclarias, clariabranchus and chirlas hybrids under outdo r nursery management system, ayokannii a. A comparative study on growth performance and survival. Effect of stocking density on growth, production and body composition. Pdf growth performance of two african catfishes clarias. The three catfish isoforms are distinct but those of c. It is an omnivorous fish, has a high commercial value in the market especially at the commencement of dry season ime.
They are found throughout africa and the middle east, and live in freshwater lakes, rivers, and swamps, as well as humanmade habitats, such as oxidation ponds or even urban sewage systems. Fingerling production of hybrid catfish clarias gariepinus x heterobanchus longifilis was investigated over three rearing periods of 3 weeks, 4 weeks and 5 weeks in fertilized earthen ponds during the rainy season. The growth performance and survival rate of clarias gariepinus burchell, 1822 and heterobranchus longifilis valenciesnnes, 1840 under water recirculation system were examined. Clarias gariepinus, heterobranchus longifilis, artemia, freshwater zooplankton, feeding, survival. Clarias gariepinus has all the qualities of an aggressive and successful invasive species. Clarias gariepinus or african sharptooth catfish is a species of catfish of the family clariidae, the airbreathing catfishes.
Artificial spawning of african catfish heterobranchus longifilis. The hatchlings were reared in the tanks, feeding commenced on the third day using artemia for four weeks and coppens. Coiviparative growth and survival of fry of clarias. African catfish clarias gariepinus initial body weight. These are heterobranchus longifilis valenciennes, 184q. The name is derived from the greek chlaros, which means lively, in reference to the ability of the fish to live for a long time out of water. In the reciprocal hybrids, female first sexual maturity was attained at 2021 months. Malespecific dna markers from african catfish clarias. The resulting fry usually show improved growth compared to the parental species. African catfish, clarias and heterobranchus, are widely cultured in africa and europe and of late, african catfish is being cultured in asia.
Clarias is a genus of catfishes order siluriformes of the family clariidae, the airbreathing catfishes. Besides clarias gariepinus introduced in aquaculture in the early 1970s, other african catfishes. The highest survival in t 2 and t 3 was similar to the result obtained by madu et al. Biochemical changes in hybrid catfish heterobranchus. The two fish species used in this work were clarias buthupogon and heterobranchus longifilis, both of which are the predominant species in the water body. The reproductive behaviour of the african catfish heterobranchus. African catfish are mentioned within traditional capturebased aquaculture known as wheddos in benin and ghana and barochois in mauritius for centuries. The post fingerlings of the two species were stocked at 486 fishm3tank and fed coppens feed for sixteen weeks. Growth and survival of fry of african catfish species. Clarias gariepinus, heterobranchus longifilis, f1 hybrid. Indigenous fish identification methods in lakes kainji and. Intraspecific hybridization of local and exotic clarias. Pdf growth performance of hybrid catfish heterobranchus. Materials and methods description of the study site this study was conducted between the period of june to august, 2015 at a reputable fish hatchery of egwenomhe.
Survival and growth of clarias gariepinus and heterobranchus. Laboratorycultured moina dubia, mixed zooplankton harvested from earthen ponds, artemia nauplii and a commercial dry diet 54. Both reciprocal hybrids and parental species displayed an equilibrated sex ratio. In most catfish producing countries, hybrids named heteroclarias are available from hatcheries that have fertilised oocytes collected from heterobranchus longifilis females with milt from clarias gariepinus. Elevage larvaire du silure africain heterobranchus longifilis.
Pdf hybridization of clarias gariepinus cl and heterobranchus longifilis. Heterobranchus longifilis x clarias gariepinus fingerlings weight, 0. A comparative study on morphology, growth rate and. The fishmeal in the control diet was replaced with maggot meals at 25%, 50%, 75% and 100% levels to supply 40% crude protein in the final diets. Growth and feed utilization of catfish hybrid heterobranchus longifilis x clarias gariepinus fingerlings fed practical diets. Effect of sizes of female broodstock on fry survival and. Hybrid catfish, heterobranchus longifilis x clarias gariepinus. Effect of rearing periods on the production of hybrid. It is also called the solomon fish, tsuni, mazunda, sampa, cur, lenda, or certa. They were acclimatized and fed with a commercial feed containing 25% crude protein for. It is an omnivorous fish, has a high commercial value in the market especially at the commencement of dry season ime ibanga and fakunle, 2007.
The hatchlings were reared in the tanks, feeding commenced on. A comparative study on morphology, growth rate and reproduction of clarias gariepinus burchell 1822, heterobranchus longifilis valenciennes, 1840, and their reciprocal hybrids pisces. The fingerlings of heterobranchus longifilis x clarias gariepinus used was obtained from a breeding exercise using two brood stock females and two brood stock males employing the method of 12. Embryonic and larval developmental stages of african giant. Heterobranchus loizgifilis, clarins gariepinus, ontogeny, temperature, incubation, hatching. Ground toasted leucaena leucocephala seed tlls was incorporated as a nonconvectional feedstuff at 0, 10, 20, 30, 40, 50% replacement level for soyabean cake. Hybridization of clarias gariepinus cl and heterobranchus longifilis ht and determination of their growth parameters and heterosis was carried out. The yearnings of farmers and scientists to have a farmed catfish that combines the fast growth traits of heterobranchus spp and early maturing traits of c. A comparative study on growth performance and survival rate. Research article proximate composition of nutrients in fresh.
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