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October 1, 2015


Disease Problems Near Shanghai


In the area of Rudong, near Shanghai, the loss of white shrimp in earthen ponds exceeds 85%!


Since 2010, with the inflow of capital and labor, shrimp farming in outdoor earthen ponds and in small greenhouse-covered ponds around Rudong has expanded rapidly.  In 2014, Rudong had approximately 8,000 hectares of white shrimp farms, 46% in greenhouses and 54% in outdoor ponds.  About 33 hatchery and broodstock facilities occupied six hectares and produced about 10 billion postlarvae. 


“This round of outdoor farming is a disaster.  Farmers of earth ponds hardly harvest anything in such towns of eastern Rudong as Dayu, Beikan, Dongan and Changsha”, said Shi Mingshan, the general secretary of Rudong Shrimp Association.  For example, in the town of Changsha, there are 670 farmers that have 1,333 hectares of ponds.  Nearly 95% of them face serious problems.  The monsoon, high temperatures and poor water quality are probably main reasons for the great losses in earthen ponds, according to an engineer at a biotechnology company.


“The bad performance in Rudong’s outdoor pond farming is caused by the unskillful management of local farmers”, said Feng, the director of Wuxi, a biotechnology company.  He said shrimp farmers using greenhouses and earthen ponds just don’t have sufficient knowledge to do the job correctly.


Although the situation is much better at the greenhouse-covered ponds, there are concerns that they will encounter similar problems because the reasons for the great losses at the earthen ponds are still unclear.


Source: (an online, subscription-based, fisheries news service).  Editor and Publisher, John Sackton (phone 1-781-861-1441, email  Local Reports Confirm Big Disease Problems with Chinese Shrimp Farming Areas Near Shanghai.  Translation by Amy Zhong.  September 30, 2015.

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