A study on the growth of 3 hybrid catfish species for commercial aquaculture and community
enterprise, comprising of Pangosius larnaudii, BukSiam hybrid catfish (male Pangasianodon gigas x
female P. hypophthalmus) and Pangasius sanitwongsei. Mating as follows: female P. larnaudii ? male
P. larnaudii, female BukSiam hybrids catfish ?male BukSiam hybrids catfish, female BukSiam hybrids
catfish ? male P. larnaudii, female P. larnaudii ? male BukSiam hybrid catfish and female BukSiam
hybrids catfish ?male P. sanitwongsei. It was found that, at 8 months old, the final body weight and
total length of different strains were highly significantly differences (p<0.01). Body weight and total
length of hybrid (female P. larnaudii ? male BukSiam hybrid catfish) were highest: 28.74?11.16 g.
and 15.34?15.85 cm.; body weight and total length of hybrid (female BukSiam hybrids catfish ? Male
P. larnaudii) were 25.18?13.62 g. and 13.48?25.68 cm.; body weight and total length of hybrid
(female BukSiam hybrids catfish ? male P. sanitwongsei) were 22.04?6.74 g. and 13.06?12.47cm.;
body weight and total length of hybrid ( female BukSiam hybrids catfish ? male BukSiam hybrid
catfish) were 19.00?16.52 g. and 13.50?25.43 cm.; body weight and total length of female P.
sanitwongsei ? male P. sanitwongsei were lowest: 12.12?5.08 g. and 11.01?12.46 cm. respectively.
The heterosis of hybrid (female P. larnaudii ? male BukSiam hybrid catfish) were highest at 84.70 %
; next is hybrid (female BukSiam hybrid catfish ? Male P. larnaudii) was 61.83 % respectively.
Estimation of heritability in catfish and hybrid catfish species at 8 months old were high for
body weight and total length (h2
BW: 0.58?0.92 and h2
TL: 0.48?0.75). The phenotypic and genotypic
correlation between BW and TL were high as well (rp: 0.91 and rg 0.89. The heritabilities and
correlations showed desirable prospective for selective breeding of body weight and total length.
These results imply that the potential of the production of 3 hybrid fish species between female
P. larnaudii ? male BukSiam hybrid catfish for increasing of hybrid catfish production in the
aquaculture system in order to value added and healthy food to community enterprises