E3S Web Conf.
Volume 147, 2020The 3rd International Symposium on Marine and Fisheries Research (3rd ISMFR)
|Number of page(s)||9|
|Published online||10 February 2020|
Sonneratia alba Extract Protects the Post Larvae of Tiger Shrimp Penaeus monodon against Vibrio harveyi and Saprolegnia sp.
Laboratory of Aquatic Microbiology, Faculty of Fisheries and Marine Sciences, Mulawarman University. Jl. Gunung Tabur Kampus Gunung Kelua, Samarinda 75124, Indonesia
2 Department of Animal Science, Agriculture Faculty, Mulawarman University. Jl. Paser Balengkong, Kampus Gunung Kelua, Samarinda 75124, Indonesia
* Corresponding author: email@example.com
The research aimed to study Sonneratia alba leaves extract to inhibit Vibrio harveyi and Saprolegnia sp., and to evaluate its effectiveness to protect the post larvae of tiger shrimp against the infections. The leaves of S. alba were cleaned, chopped, dried, macerated and extracted in three different solvents namely ethanol 80%, freshwater and saline water. The post larvae 8 then immersed with the extract and infected with Vibrio harveyi and Saprolegnia sp. The clinical signs, pathological anatomy, total vibrio count, prevalence, survival rate, and relative percentage of survival were observed. The results showed that S. alba leaves extract inhibited V. harveyi and Saprolegnia sp. on post larvae of tiger shrimp, improve survival rate and relative percentage survival. The most effective dosage was 1,250 mg/L either for ethanolic, freshwater and saline water solvents.
© The Authors, published by EDP Sciences, 2020
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