Bf. Ardelli et Ptk. Woo, IMMUNE-RESPONSE OF CRYPTOBIA-RESISTANT AND CRYPTOBIA-SUSCEPTIBLE SALVELINUS-FONTINALIS TO AN AEROMONAS-SALMONICIDA VACCINE, Diseases of aquatic organisms, 23(1), 1995, pp. 33-38
Brook charr Salvelinus fontinalis, both those susceptible and those re
sistant to the pathogenic haemoflagellate Cryptobia salmositica, respo
nded well to a commercially available Aeromonas salmonicida vaccine. T
he proportion of susceptible and resistant charr which produced agglut
inating antibody were similar, but resistant brook charr had higher ag
glutination titres than susceptible brook charr. Concanavalin A stimul
ated peripheral blood leucocytes of Cryptobia-resistant charr and the
kinetic profiles suggest that maximal stimulation is dependent on mito
gen concentration. Cryptobia-resistant brook charr displayed both cell
-mediated and humoral responses suggesting that their immune functions
are similar to those of Cryptobia-susceptible charr.