Experimental Nursing and Grow-Out of Commercial Snakehead Fish (Channa Striata Bloch, 1793) From Three Different Brood Stock Sources
Duong Nhut Long*, Nguyen Hoang Thanh and Nguyen Van Trieu
ABSTRACT
The experiment on nursing and grow-out of commercial snakehead (Channa striata Bloch, 1793) from three different brood stock sources was conducted from July 2024 to March 2025 in Chau Phu district, A Giang province. Results after 60 days of nursing indicated that larvaes originating from Vietnam, Cambodia, and Thailand exhibited relatively high performance, with growth ranging from 2.5 ± 0.1 g/ fish to 3.1 ± 0.1 g/fish, survival rates ranging from 50.3 ± 7.5% to 57.3 ± 10.2%, and feed conversion ratios (FCR) ranging from 0.83 ± 0.06 to 0.89 ± 0.03.
In the grow-out phase, snakehead originating from Vietnam and Thailand showed higher growth rates and productivity, with statistically significant differences (p<0.05) compared to those from Cambodia. However, survival rates of the Cambodian stock were significantly higher than those of the Vietnamese and Thai stocks (p<0.05).
These findings suggest that the three brood stock sources, originating from different ecological regions, display technical differences during nursing and grow-out. Nevertheless, the obtained values can be practically applied to local production systems, providing suitable seed production and commercial grow-out models for farmers in the Mekong Delta region.
