Lenormand S., Slembrouck Jacques, Pouyaud Laurent, Subagja J., Legendre Marc. (1998). Evaluation of hybridisation in five Clarias species (Siluriformes, Clariidae) of African (C. gariepinus) and Asian origin (C. batrachus, C. meladerma, C. nieuhofii and C. teijsmanni). In :
Legendre Marc (ed.), Pariselle Antoine (ed.). The biological diversity and aquaculture of clariid and pangasiid catfishes in South-East Asia : proceedings of the mid-term workshop of the "Catfish Asia project". Jakarta (IDN) ; Can Tho : IRD ; Can Tho University, p. 195-209. Characterisation, Utilisation and Maintenance of Biological Diversity for the Diversification and Sustainability of Catfish Culture in South East Asia, Can Tho (VNM), 1998/05/11-15.
Titre du document
Evaluation of hybridisation in five Clarias species (Siluriformes, Clariidae) of African (C. gariepinus) and Asian origin (C. batrachus, C. meladerma, C. nieuhofii and C. teijsmanni)
Année de publication
1998
Type de document
Colloque
Auteurs
Lenormand S., Slembrouck Jacques, Pouyaud Laurent, Subagja J., Legendre Marc
In
Legendre Marc (ed.), Pariselle Antoine (ed.), The biological diversity and aquaculture of clariid and pangasiid catfishes in South-East Asia : proceedings of the mid-term workshop of the "Catfish Asia project"
Source
Jakarta (IDN) ; Can Tho : IRD ; Can Tho University, 1998,
p. 195-209
Colloque
Characterisation, Utilisation and Maintenance of Biological Diversity for the Diversification and Sustainability of Catfish Culture in South East Asia, Can Tho (VNM), 1998/05/11-15
Ten crosses between five Clarias species of African (C. gariepinus) and Asian origin (C. batrachus, C. meladerma, C. nieuhofii and C. teijsmanni) were evaluated on the basis of the fertilisation and hatching rates obtained. Zootechnical performances (growth, survival) of C. batrachus and C. gariepinus larvae were compared. Viable hybrids growth and survival were followed up until the age of 11 weeks. The genotype of the reciprocal crosses between C. gariepinus and C. meladerma was studied and the gonad development of two-years-old C. meladerma x C. gariepinus hybrids were examined (inter-specific crosses are always given with the female parent in the first position). No hybrid between C. gariepinus and C. batrachus could be obtained. Clarias gariepinus x C. nieuhofii and C. gariepinus x C. teijsmanni hybrids did not survive more than a few hours after hatching and larvae obtained from C. gariepinus x C. meladerma cross were non viable beyond a few days afer hatching. In the latter case, protein electrophoresis of progeny carried out at two loci diagnostic for C. gariepinus and C. meladerma) (PGI and PGM) indicated that the larvae resulted from an haploid gynogenetic development. The crosses between female C. meladerma and male C. gariepinus or C. nieuhoffi or C. teijsmanni produced viable hybrids. Clarias gariepinus and C. batrachus zootechnical performances comparison during larval rearing indicated that the growth potential of these two species is equivalent until the age of 12 days, though C. gariepinus is favoured by its larvae bigger initial size. The comparison of C. gariepinus and C. meladerma x C. gariepinus growth and survival until the age of 11 weeks showed good performances in the hybrid compared to the Asian species but slightly lower than the ones observed in C. gariepinus... (D'après résumé d'auteur)
Plan de classement
Aquaculture [040AQUAC]
Descripteurs
POISSON D'EAU DOUCE ; PISCICULTURE ; AMELIORATION GENETIQUE ; HYBRIDATION INTERSPECIFIQUE ; LARVE ; CROISSANCE ; TAUX DE SURVIE ; FECONDITE ; GENOTYPE ; ETUDE EXPERIMENTALE
Description Géographique
ASIE DU SUD EST ; INDONESIE
Localisation
Fonds IRD [F A010020339] ;
Montpellier (Centre IRD)
Identifiant IRD
fdi:010020355
