Km. Spann et al., Differences in the susceptibility of some penaeid prawn species to gill-associated virus (GAV) infection, DIS AQU ORG, 42(3), 2000, pp. 221-225
Four species of penaeid prawn cultured in Australia (Penaeus monodon, Penae
us esculentus, Marsupenaeus japonicus and Fenneropenaeus merguiensis) were
injected with a virulent preparation of gill-associated virus (GAV). P. mon
odon (average weight = 8.9, 13,9 and 19.2 g), P. esculentus (average weight
= 19.5 g), F, merguiensis (average weight = 10.5 g), and small (average we
ight = 5.8 g) M. japonicus displayed overt signs of disease and mortalities
which reached 82 to 100% within 23 d post-injection. Cumulative mortalitie
s in P. esculentus and F, merguiensis were significantly lower than for P,
monodon of the same size class. Medium (average weight = 13.0 g) M. japonic
us also developed overt signs of disease but cumulative mortalities were no
t significantly higher than uninfected controls. Large (average weight = 20
.3 g) M. japoncius did not display symptoms of disease and there were no si
gnificant mortalities up to 23 d post-injection.