Exploring the potential of Sonneratia alba leaf boiling extract as a natural preventive measure against causing white spot syndrome virus in tiger shrimp fingerlings

Research Center for Fishery, National Research and Innovation Agency, 16911, Republc of Indonesia

^* Corresponding author: nurhidayahjabir@gmail.com

Abstract

The possibility of mass mortality in farmed shrimp populations is a risk posed by WSSV. Vaccines and chemical drugs have been created to stop WSSV infection, but they can be harmful to the environment and human health. Therefore, natural prevention options are needed. 1% boiled S. alba extract was used in this study to test the technique of immersing tiger shrimp fry at different times before WSSV infection. The study was designed in RAL with eight treatments and three repetitions: These were A) 12-hour immersion; B) 24 hours; C) 36 hours; D) 48 hours; E) 60 hours; F) 72 hours; G) WSSV infection without soaking S. alba and H) without WSSV infection and S. alba extract. Treatment C had the best survival rate (85%) while the positive control had the lowest percentage (43.33%). Tiger prawns can increase resistance to WSSV infection by soaking them in 1% extract of boiled S. alba leaves. Water quality parameters were also measured, and the experimental results showed no significant changes. According to the results, immersion of tiger shrimp fry in 1% boiled S. alba extract for 36 hours was the most efficient way to increase fry survival from WSSV infection.