Protective efficacy ofAeromonas hydrophila vaccines in Nile tilapia

Hematology and agglutination titer after polyvalent immunization and subsequent challenge with Aeromonas hydrophila in Nile tilapia (Oreochromis niloticus)

“…Similar to our results, higher antibody levels for two weeks were reported in tilapia vaccinated intraperitoneally with A. hydrophila (Ruangpan et al 1986). On the other hand, Swain et al (2007) have related the efficacy of poli or monovalent vaccine in cyprinid fish (Labeo rohita) with the maximum values of agglutination titer after 4 weeks.…”

Hematological and immunological responses of Nile tilapia after polyvalent vaccine administration by different routes

“…Among the differents administration routes, intraperitoneal injection has shown the best results (Klesius et al 1999, Ruangpan et al 1986). However, it is laborious, costly, stressful to the animals, and only administered in fish of high market price, broodstock or ornamental fish (Austin & Austin 1993).…”

Studies on ulcerative disease caused by Aeromonas caviae-like bacterium in Indian catfish, Clarias batrachus (Linn)

“…One bacterial isolate from nutrient agar, Aeromonas agar, TSA and MacConkey agar caused mortality and reproduced the clinical sign of ulcerative lesions in healthy catfish, but the other isolates from these media did not cause significant mortality and clinical signs. Several workers have reported that among the bacterial pathogens motile Aeromonas has caused high mortality in catfish (Lewis and Plumb, 1979;Meyer, 1975) and induced serious epidemics of ulcerative disease in fish in Southeast Asia and other regions of the world (Angka et al, 1988;Areerat, 1987;Llobrera and Gacutan, 1987;Roberts et al, 1992;Ruangpan et al, 1986). Motile Aeromonas in Java was found to be the dominant pathogen in the outbreaks of ulcerative disease in walking catfish.…”

“…High mortality of young C. batrachus was observed in nursery and grow-out ponds located in Tamil Nadu and Andhra Pradesh. Among the bacterial pathogens, motile Aeromonas caused high mortality in catfish (Lewis and Plumb, 1979;Meyer, 1975) and induced serious epidemics of ulcerative disease in fish in Southeast Asia and other regions of the world (Angka et al, 1988;Areerat, 1987;Llobrera and Gacutan, 1987;Roberts et al, 1992;Ruangpan et al, 1986). For the past two years, an ulcerative disease has been observed in nursery and grow-out ponds located in Tamil Nadu and Andhra Pradesh.…”