| dc.description.abstract | C/N ratio plays an important role in aquaculture system with biofloc technology
application. The toxic nitrogen will be controlled through adding carbohydrates to
water, which heterotrophic bacterial will be stimulated by the conversion of nitrogen
in the bacterial biomass. However, most of the previous research used
polysaccharide as carbohydrate supplement. The goal of this study is to explore the
optimal C/N ratio of white leg shrimp Litopanaeus vannamei with using
monosaccharide as carbohydrate supplement for best growth and survival. The
experiment included three CN treatments with different C/N ratios at 10:1, 15:1,
20:1, and a control (no monosaccharide addition) with three replicates for each. The
experimental tank volume was 120 liters, filled with water at a salinity of 22 psu.
The stocking density was 60 larvae/tank. During the experiment, the water quality
parameters found to be under the allowable limits in shrimp culture. After 45 days
of the experiment, the findings of the experiment revealed that TAN and NO2 in CN
treatments were both lower and significant statistically (p <0.05) relative to the
control. At the end of the experiment, there were substantial differences in absolute
growth, SGR, FCR were noted between treatment groups and control. Enhanced
growth and survival were observed in C15 treatment. The results indicate that the
CN15 ratio coupled with no water exchange is optimal for better survival and
growth. | en_US |
