Growth performance of giant eel (anguilla marmorata) at Hoa My reservoir, Thua Thien Hue province, Vietnam

Abstract

    Fingerlings's Giant eel (Anguilla marmorata) was selected for this research with average weight 115.25 ± 6,98 g/head, starting from October 5, 2010 to February, 2012 at Hoa My reservoir. This fingerlings were stocked in four floating cages with drilled holes Ø 1.5 cm, with size (3.0 x 1.5 x 1.0 meter each), suspended by plastic buoys and the fingerling stocking density were 240 head/cage and during this adaptation period, the changes of weight were recorded 1 time/ 2 months. Objective of this research is to find the suitable selection of using fresh trash fish or industrial feed to culture Giant eel in fresh water. As a result, the findings show that Hoa My reservoir likes potential area with stability of pH (6.8 - 8.2), DO (4 - 6mg /l). The temperatures fluctuating from 17.7 0C - 30 0C in the tolerance limit of this fish, do not effect on their growth performance. Giant eel using fresh trash fish reached 826.35 ± 61.35 g/head, gaining an income of 9.514.000 VND (320,000 VND/kg of fish) and Giant eel with industrial feeds only 538.4 ± 30.51g/head (290.000 VND per/kg of fish), loss of than 17.500.000 VND. This research suggest that farmer should use the fresh trash fish to culture the giant eel.