An intensive shrimp farm. (Photo: Stock File)
Shrimp farming lost due to the outbreak of diseases
INDIA
Wednesday, October 23, 2019, 18:50 (GMT + 9)
VASEP, the Vietnam Association of Seafood Exporters and Producers, inform that the white spot disease (WSSV) and white feces disease (WFD) along with floods put India's shrimp production in 2019 at risk of falling by more than 200,000 tons.
White spot syndrome (WSSV) and white feces disease (WFD) are seriously reducing the production of white shrimp in India, The Hans India newspaper said. About 30,000 farmers are still expecting the Indian Government to take measures to curb the outbreak of the disease.
White spot syndrome (WSSV) (Photo: Stock File)
According to World's Top Exports in May 2019, India is the world's largest shrimp exporter, with a trade value of USD 4.4 billion, accounting for 25.4% of the global market, and almost double compared with the country ranked second (Ecuador - 2.9 billion).
The miraculous growth of India stems from the shift to vannamei, a species that is capable of high-density, short-lived, good vitality, and effective disease resistance.
Since the 2000s, after the black tiger shrimp epidemic was raging, whiteleg shrimp and, in some cases, giant freshwater shrimp have become popular cultivars and took the leading position in Indian seafood industry.
Even so, overheating led to the downside. Many shrimp farmers believe that, because whiteleg shrimp is easy to raise and does not need additional nutrition, the bottoms in many areas are bottled, poor nutrition, algae are not developed, the pond environment is seriously polluted.
Scientists in the city of Nellore, India, said that whiteleg shrimp was suffering a serious loss due to the disease, which is thought to be the early monsoon, enabling pathogens to appear and spread.
Conducting sampling at white shrimp farms, the results showed that all ponds had common pathogens in shrimp such as: white spot disease (WSSV), black-gill disease (BGD), syndrome Loose shells (LSS), white feces (WFS), myopathy (WMD), subcutaneous necrosis and hematopoietic organs (IHHN) ...
The panic for Indian farmers grew when the ponds discovered that the pathogens were still biosecurity and fully met the measurement standards recommended by authorities.
Research from the Global Aquaculture Alliance suggests that the Indian Government was subjective and inadequate to prevent early outbreaks, leading to delays in alerting pond standards.
Within 10 years, starting from 2009, when India identified vannamei as the main export item, accounting for 90% of the shrimp industry's total output, the country was always confident in its facilities and progress. The science applies to shrimp farming. However, this time they did not promptly back up to the outbreak of disease.
Photo: Stock File
A farmer in Nellore city said: "Scientists have visited the pond many times and held talks with farmers but no one has been able to find a way to prevent the WSSV outbreak. Is the disease no longer under control? "
This is also a common concern for shrimp farmers in India when it is recommended by the Ministry of Agriculture for one season to reduce WSSV incidence, according to The Hindu.
(Source: VASEP based on NVNN)
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