Emerging
of viral outbreaks in the shrimp (Litopenaeus vannamei) culture and
preventive management practices in Krishna district of Andhra Pradesh, India
Suresh P 1, Mahender J 2,
Laxmappa B 3, Jagdeeshwara
Chari T 4, Paramesh godishala 5,
1 Fisheries Development
Officer, Department of Fisheries, Kaikalure, Andhra Pradesh-521333
2 Research Scholar, Department of Zoology, Osmania University, Hyderabad,Telangana-500001
3 Fisheries Development Officer, Department of Fisheries,
Mahabubnagar, Telangana-509001
4 Research Scholar, Department of Zoology, Osmania University, Hyderabad,Telangana-500001
5 Asst. Prof, Department of Zoology, Govt. Degree &
P.G college, Mancherial,Telangana-504208
ABSTRACT: Pacific white shrimp (Litopenaeus
vannamei) is the most extensively farmed crustacean species in the world. White
spot syndrome virus (WSSV) is one of the major pathogens in the cultured
shrimp. A longitudinal study was conducted from 2013-14 in small-holder shrimp (Litopenaeus
vannamei) ponds in the Krishna District of Andhra Pradesh (A.P), India. The study involved
136 ponds owned by low-income farmers participating in a better management
practice (BMP) programme. Disease outbreaks occurred in 36% of ponds.With the development of shrimp culture practice from traditional form to
modern intensive culture practice, the complexity of diseases has been equally
magnified in Andhra Pradesh. The frequent outbreaks of viral infections such
as White Spot Syndrome
Virus (WSSV), Yellow Head Virus(YHD), in shrimps causing huge economic loss
to the aquaculture industry in Krishna district. Out of many diseases,
White Spot Syndrome Virus (WSSV) causing major damage to L. vannamei species in the
district. Farmers are losing 20-30% of their investment due to this disease in
every crop in the season. Shrimp aquaculture industry has experienced severe
setbacks due to devastating viral diseases. L. vannamei is an
exotic species and culturing both in freshwater and saline waters in A.P. The
viral outbreaks are minimal in low saline waters compared to the high saline
waters with the best management practices.
Key
words: Krishna district, Andhra Pradesh, Viral outbreaks, Litopenaeus vannamei, WSSV
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