Asian-Pacific Aquaculture 2019

June 19 - 21, 2019

Chennai Tamil Nadu - India

THE TEMPERATURE EFFECTS IN DIFFERENT SALINITIES PERFORMANCE AND FEED EFFICIENCY OF SNAKEHEAD Channa striata FINGERLINGS

Tran Thi Phuong Lan1, Tran Minh Phu1, Tran Le Cam Tu1,  Nguyen Van Khanh1, Haga Y2 and Tran Thi Thanh Hien1*
 
1College of Aquaculture and Fisheries, Can Tho University, Vietnam
2Department of Marine Bioscience, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Japan
*ttthien@ctu.edu.vn
 

The study was carried out to evaluate the effect of temperature and salinity on digestibility, growth performance and feed utilization of snakehead (Channa striata). The experiment was conducted to evaluate the growth and feed utilization of snakehead fingerlings (6.53±0.09 g). After 8 weeks, snakehead growth performance and feed utilization efficiency increased with decreasing salinities at higher temperatures. The highest survival rate (98.9%), daily weigh gain (0.72 g/day), specific growth rate (3.51 %/day) were found in the treatment 31°C-0‰, which were not significant difference to 28oC-0‰, 28oC-6‰ and 34°C-0‰ treatments. The lowest growth and survival rate were found in the treatment 34°C-9‰ (66.7%) and 34°C-6‰ (68.9%), which were significantly lower than that of the others. Food conversion ratio in treatment 34°C-9‰ (1.23) was significantly higher than other treatments. In conclusion, combined temperature and salinity significantly affect snakehead growth performance and feed utilization.

Funding information

This study is funded in part by the Can Tho University Improvement Project VN14-P6, supported by a Japanese ODA loan.