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Legendre Marc, Slembrouck Jacques, Subagja J. (1998). First results on growth and artificial propagation of Pangasius djambal (Siluriformes, Pangasiidae) in Indonesia. 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, 97-102. 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.

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Titre
First results on growth and artificial propagation of Pangasius djambal (Siluriformes, Pangasiidae) in Indonesia
Année de publication1998
Type de documentColloque
AuteursLegendre Marc, Slembrouck Jacques, Subagja J.
InLegendre 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"
SourceJakarta (IDN) ; Can Tho : IRD ; Can Tho University, 1998, p. 97-102.
ColloqueCharacterisation, 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
RésuméObservations on growth rate and occurrence of first sexual maturity were done on a population of 75 Pangasius djambal originally caught in the wild, individually tagged, and reared in 200 m2 ponds at a stocking density of 0.4-0.5 fish/m2 at the Sukamandi research centre (Java). These fish, weighing initially between 190 and 1100 g were fed with a 35-40% crude protein pelleted feed and followed up during a period of 16 months. Two trials of induced ovulation were also carried out on females from a small stock of a dozen adult fish reared in floating cages at the Danau Teluk fish culture station (Sumatra). Between June 1997 and October 1998, the mean body weight of fish increased from 555 g to 4162 g, which corresponded to a daily weight gain of 7.4/d. The highest individual growth rate observed between two successive sampling dates was of 16.5 g/d. The mean growth rate of P. djambal females (8.9 plus or minus 2.2 g/d) was significantly higher than that of males (6.3 plus or minus 1.9 g/d) and first sexual maturity occurred several months earlier in males than in females. Oocyte maturation and ovulation were induced with two successive injections of Ovaprim at 8 h interval, corresponding to a total dose of 0.9 mL/kg. Among four females treated, three ovulated and could be stripped. Mean hatching rates obtained after artificial fertilisation of eggs varied between 8 and 31%. After 27 days of age, the survival rate of larvae fed live Artemia nauplii then dried feed was 61%. No cannibalism was observed during the larval rearing which did not appear as a critical phase of the breeding cycle. Although preliminary, these results confirm the great potential interest of using P. djambal for aquaculture. The induced breeding and larval rearing carried out for the first time in this species represent a breakthrough in the control of its biological cycle in captivity. (Résumé d'auteur)
Plan de classementAquaculture [040AQUAC]
DescripteursPOISSON D'EAU DOUCE ; CYCLE DE REPRODUCTION ; MATURITE SEXUELLE ; CROISSANCE ; PISCICULTURE ; METHODE D'ELEVAGE ; ETUDE EXPERIMENTALE ; REPRODUCTION ARTIFICIELLE ; TRAITEMENT HORMONAL ; OVAPRIM
Descr. géo.INDONESIE ; JAWA
LocalisationFonds IRD [F A010020339] ; Montpellier (Centre IRD)
Identifiant IRDfdi:010020349
Lien permanenthttp://www.documentation.ird.fr/hor/fdi:010020349

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