Multiple viral infection in Penaeus
monodon shrimp postlarvae in an Indian hatchery
S. Manivannan, S.K. Otta, I. Karunasagar, I.
Karunasagar-2002
Abstract:
Moribund Penaeus monodon postlarvae (PL8-PL10)
in a hatchery in India were found to be simultaneously infected by 3
different viruses. They were highly infected with monodon baculovirus (MBV)
and hepatopancreatic parvovirus (HPV) by histology and with white spot
syndrome virus (WSSV) by non-nested polymerase chain reaction (PCR).
Apparently healthy postlarvae tested from the same hatchery were positive
for MBV and WSSV by nested PCR only. Tissue sections of such postlarvae did
not show any histopathological changes. The simultaneous occurrence of these
3 viruses in hatchery-reared postlarval P. monodon is being reported
for the first time.
(Department of Fishery Microbiology, University of
Agricultural Sciences, College of Fisheries, Mangalore 575 002, India,
E-mail of I. Karunasagar: mircen@sancharnet.in)