Experimental transmission of epizootic ulcerative syndrome (EUS) in snakehead, Ophicephalus striatus
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Two separate experiments on transmission of epizootic ulcerative syndrome (EUS) to naive snakehead (Ophicephalus striatus) by cohabitation with EUS-positive snakehead in EUS-enzootic environment and exposure to EUS-enzootic environment alone were conducted in Laguna, Philippines. Under unfed conditions, initial signs of EUS were observed after 9 d of cohabitation and progressed into advanced stages in 10 tol6 d, whereas in exposure to EUS-enzootic environment alone, initial signs were observed in 10 d and developed into advanced stages in 15 to 20 d post-exposure. When food was given, initial signs of the disease were observed after 14 d of cohabitation and progressed into advanced stages in 17 to 20 d, whereas in fish exposed to EUS-enzootic environment alone, onset of EUS was 44 d post-exposure developing into advanced stages in 50 to 55 d post-exposure. Transmission of the disease was 100% in all treatments.
Cruz-Lacierda, E. R., & Shariff, M. (1995). Experimental transmission of epizootic ulcerative syndrome (EUS) in snakehead, Ophicephalus striatus. In M. Shariff, J. R. Arthur, & R. P. Subasinghe (Eds.), Diseases in Asian Aquaculture II : Proceedings of the Second Symposium on Diseases in Asian Aquaculture, 25-29 October 1993, Phuket, Thailand (pp. 327–336). Metro Manila, Philippines: Fish Health Section, Asian Fisheries Society.