EHP remains as a Big Nuisance for Asian shrimp farms in 2021

EHP remains as a Big Nuisance for Asian shrimp farms in 2021

 

The Enterocytozoon hepatopenaei (EHP) is an emerging hepatopancreatic microsporidian parasite that affects cultured shrimp black tiger shrimp (Penaeus monodon) and Pacific white shrimp (P. vannamei) in China, Vietnam, Thailand, Indonesia, India and Malaysia, as well as other Southeast Asia countries. EHP can be transmitted horizontally among prawns cohabiting in rearing ponds. Heavily infected prawns may display white faeces that are packed with microsporidian spores.

Unlike the more fatal bacterial infections such as White Spot Syndrome Virus (WSSV) and EMS, EHP causes great reduction of the rate of shrimp growth, and in more advanced stages, infected shrimp have soft shells and exhibit lethargy, reduced feeding and empty midguts. This means if the disease left undetected, farmers can waste considerable sums on feeding shrimp that is no longer growing at an economical rate.

Read More

Australia Shrimp Sector Hit by WSSV

Australia Shrimp Sector Hit by WSSV

White spot disease (WSD) is a highly contagious viral disease of decapod crustaceans including prawns, crabs, yabbies and lobsters. White spot disease is caused by white spot syndrome virus (WSSV).

As of January 2021, the Australian government is in discussion of regulating import of shrimps on a stricter basis of requirement including compulsory cooking of imported shrimp. This regulation is due to reports of shrimps in local habitat being infected with White Spot Syndrome Virus (WSSV).

Read More

IHHNV Outbreaks at Shrimp Farms in USA

IHHNV Outbreaks at Shrimp Farms in USA

The World Organisation for Animal Health (OIE) reported in June 2019 that there have been two outbreaks of Infectious Hypodermal and Hematopoietic Necrosis Virus (IHHNV) in the United States. One of the outbreaks occurred in a recirculating shrimp farm in Aransas County, Texas, and the other outbreak occurred in Indian River County on the East Coast of Florida.

Read More