%0 Conference Proceedings
%9 ACTI : Communications avec actes dans un congrès international
%A Legendre, Marc
%A Slembrouck, Jacques
%A Subagja, J.
%T First results on growth and artificial propagation of Pangasius djambal (Siluriformes, Pangasiidae) in Indonesia
%S 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"
%C Jakarta (IDN) ; Can Tho
%D 1998
%E Legendre, Marc
%E Pariselle, Antoine
%L fdi:010020349
%G ENG
%I IRD ; Can Tho University
%K POISSON D'EAU DOUCE ; CYCLE DE REPRODUCTION ; MATURITE SEXUELLE ; CROISSANCE ; PISCICULTURE ; METHODE D'ELEVAGE ; ETUDE EXPERIMENTALE
%K REPRODUCTION ARTIFICIELLE ; TRAITEMENT HORMONAL ; OVAPRIM
%K INDONESIE ; JAWA
%P 97-102
%U https://www.documentation.ird.fr/hor/fdi:010020349
%> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/doc34-08/010020349.pdf
%W Horizon (IRD)
%X Observations 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)
%B Characterisation, Utilisation and Maintenance of Biological Diversity for the Diversification and Sustainability of Catfish Culture in South East Asia
%8 1998/05/11-15
%$ 040AQUAC