Susceptibility of different weight ranges of Epinephelus coioides to piscine nodavirus
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Abstract
The susceptibility of different weight ranges of orange-spotted grouper (Epinephelus coioides) to piscine nodavirus was studied by experimental infection. Size ranges of 1-2 g, 6-8 g, 10-13 g, 30-60 g, and 90-120 g were intramuscularly injected with 50 µL 106 TCID50/mL of the cell culture supernatant. Clinical signs were observed and mortality occurred from 4 days post infection (dpi) for weight range 1-2 g to 7 dpi for weight range 30-60 g. Fish with weight ranges 1-2 g and 6-8 g showed highest susceptibility with mortality rate of 80% while fish with weight range 90-120 g were no longer susceptible. Mortality rates for weight ranges 10-13 g and 30-60 g were 50% and 20%, respectively. No mortality was observed in the 90-120 g weight range and the control group. These data show that the susceptibility of orange-spotted grouper to VNN is weight-dependent.
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Viruses--Isolation
Suggested Citation
de la Peña, L. D., Suarnaba, V. S., Villacastin, A. J. B., Cabillon, N. A. R., Catedral, D. D., & Faisan, J., Joseph (2017). Susceptibility of different weight ranges of Epinephelus coioides to piscine nodavirus. Bulletin of the European Association of Fish Pathologists , 37(1), 16-22. http://hdl.handle.net/10862/6516
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- Journal Articles [1266]
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