Resistance of Dutch stocks of African (Clarias gariepinus) and Asian catfish (Clarias batrachus) to channel catfish virus (CCV) was tested. Replicate groups of catfish larvae were challenged by immersion in water containing 105, 104 and 103 TCID50 (50% tissue culture infective dose endpoint)/ml of CCV. One group of each catfish species was not challenged and served as a control group. Morbidity and mortality were compared to those of simultaneously challenged groups of larvae of a third species of catfish, the channel catfish (Ictalurus punctatus). The results strongly suggest that CCV should not be considered a major threat to established cultured populations of African and Asian catfish in The Netherlands.
ASJC Scopus subject areas
- Aquatic Science