Why do shrimp farmers in Nghe An province leave their ponds empty during the winter season despite high profits?
Thanh Phuc•November 25, 2024 06:41
Despite high market demand, soaring shrimp prices, and considerable profits, very few shrimp farmers in Nghe An are daring enough to start stocking their ponds this winter…
By this time, many shrimp farmers in Hoang Mai town, Quynh Luu district, and Dien Chau district have completed stocking their ponds for the winter shrimp farming season. Photo: Thanh PhucRaising shrimp in the winter season is often risky, yet farmers still accept the gamble because success can yield high profits. Mr. Nguyen Van Su in Quynh Loc commune (Hoang Mai town) has 11 ponds with an area of 2,500 square meters.2He uses greenhouses and net houses for farming. However, so far, he has only stocked 5 ponds. He expects to harvest during the Tet holiday. Photo: Thanh PhucMost households raising shrimp in the winter season have modern ponds with conical roofs, using load-bearing cable frames and three layers of netting and plastic sheeting to protect against the cold and keep the ponds warm during winter, ensuring the pond temperature is always suitable for the shrimp's growth and development. Photo: Thanh Phuc Regular aeration to regulate the water environment is a practice adopted by shrimp farmers during the shrimp farming process. Photo: Thanh PhucFurthermore, during the winter shrimp farming season, farmers must constantly monitor the growth and development of the shrimp, staying at the ponds 24/7 to promptly detect and treat any disease outbreaks. In the photo: Mr. Hung Sam's household - a shrimp farm owner in Quynh Bang commune - inspecting the shrimp. Photo: Thanh PhucShrimp farming also pays special attention to nutrition. Accordingly, they use biological products mixed with standard industrial feed, and waste is treated to meet standards before being discharged into the environment. Photo: Thanh PhucAll shrimp farms raise the shrimp in greenhouses, and only release them into the environment after they reach a suitable size, employing a multi-stage farming process. Photo: Thanh PhucHowever, the unpredictable weather, with heavy rains right from the start of the season, has signaled difficulties in shrimp farming this winter. In addition, shrimp diseases are spreading rapidly, leading to widespread disease and shrimp mortality. In the photo: Mr. Van Duc Duong's household in Quynh Dy ward (Hoang Mai town) reports that he has stocked three ponds with shrimp fry, but has already seen shrimp deaths, requiring frequent removal of dead shrimp. Photo: Thanh PhucFurthermore, shrimp farming in the winter season results in poorer growth, lower yields, and a longer rearing period. (In the photo: Shrimp farmed for 60 days have only reached a weight of 150 shrimp per kilogram. Photo: Thanh Phuc)Therefore, in aquaculture areas, most ponds and lagoons are still empty. Photo: Thanh PhucIn shrimp farming areas in Quynh Dy, Quynh Loc (Hoang Mai town), Quynh Bang, Quynh Thanh (Quynh Luu), Dien Thinh, Dien Trung… (Dien Chau), many shrimp ponds are being renovated and treated by farmers, waiting until after Tet (Lunar New Year) to release shrimp fry. Photo: Thanh Phuc
For shrimp farming during the winter season, farmers often face many unfavorable factors and high risks due to complex weather changes and unusual rainfall and flooding. To ensure safe shrimp growth and high productivity, farmers apply biosecurity technology, raise shrimp in floating tanks, and raise them in greenhouses. Only after reaching a good size are they released into the environment, employing a multi-stage farming process. The farming process requires careful care techniques; when temperatures drop, feed must be reduced in both quantity and frequency; environmental factors must be checked daily in the morning and evening, and if the environmental factor indicators are outside the appropriate range, immediate corrective measures must be taken.
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