International Journal of Fisheries and Aquatic Studies
2016, Vol. 4, Issue 2, Part F
Identifying diseases affecting farmed Litopenaeus vannamei in different areas of Nellore district in Andhra Pradesh, India
Author(s): D Srinivas, Ch Venkatrayalu, B Laxmappa
Abstract: Pacific white shrimp (
Litopenaeus vannamei) is the most extensively farmed crustacean species in the world. A study was conducted throughout one year from January, 2015 to December, 2015 in shrimp culture ponds of Kavali, Gudur and Nellore divisions of Nellore district in Andhra Pradesh (A.P), India. The study involved 287 ponds in the selected three divisions of 9 Mandals spread in 32 villages and seven diseases are reported from the culture ponds of
L. vannamei. Disease outbreaks occurred in most of the culture ponds particularly in Gudur and Nellore divisions. 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 diseases such as White Spot Syndrome Virus (WSSV), Black Gill Disease (BGD), Running Mortality Syndrome (RMS), Loose Shell Syndrome (LSS), White Faecal Syndrome (WFS), White Muscle Disease (WMD) and Infectious Hypodermal and Haematopoietic Necrosis (IHHN) in shrimps causing economic loss to the aquaculture industry in Nellore district. One or more diseases are common in culture ponds of
L. vannamei due to various reasons. About 50% diseases occurred in the culture ponds of Kavali division, 94% in Gudur and Nellore divisions. Farmers are losing about 60 per cent of their investment due to these diseases 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. The prevention, control and awareness of disease are very crucial for successful shrimp culture farming. The farmers should aware that, the
L. vannamei seed stocked is only specific pathogen free (SPF) but not free from all pathogens.
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How to cite this article:
D Srinivas, Ch Venkatrayalu, B Laxmappa. Identifying diseases affecting farmed Litopenaeus vannamei in different areas of Nellore district in Andhra Pradesh, India. Int J Fish Aquat Stud 2016;4(2):447-451.
