A new virus affecting vannamei shrimp, so far known only to Thailand and Vietnam, has been detected by the department of Marine Living Resources of Andhra University, Visakhapatnam.
The virus has been affecting over Rs 1,000 crore worth shrimps every year.
The dual infection caused by the viral disease known as Abdominal Segment Deformity Disease (ASDD) and microsporidian Enterocytozoon hepatopenaei (EHP) has been affecting the growth and life of the Vannamei shrimps, Hans India informed.
Litopenaeus Vannamei was introduced in India in 2008, when aquaculture has reached its peak. Both the diseases were detected in brooders in Thailand and Vietnam in 2012 and the AU department found the diseases in 2015 and after several field tests it was confirmed recently.
Some hatchery owners directly import from Hawaii and set into production without screening. This could be one reason for spreading the diseases all over,” said Prof R Janakiram of the Marine Living Resources department.
A new probiotic discovered
Meanwhile, a research scholar of the department, Gandham Krishna Geetha discovered a new probiotic, which could be resistant to many diseases.
The scientist managed to isolate a new strain of Bacillus cereus from the gut of wild Penaeus monodon brooder and proved to be antagonistic to Vibrio harveyi, and can be used as a feed probiotic in shrimp after field trials.
The discovery has been informed to National Centre for Biotechnology Information.
In Janakiram’s opinion, the commercial application of this new probiotic will give fresh impetus to the aquaculture industry in India.
New viral disease detected in vannamei shrimp
Source : The Hans India, FIS
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