Seminar “Veterinary work makes the difference between success and failure in aquaculture” by Newspaper Vietnamese culture carry out. Picture: its metal.
Right at the start of the 2023 shrimp harvest, salt water arrived late in some places in the Mekong Delta, causing farmers to delay sowing.
At the seminar “Veterinary work makes the difference between success and failure in aquaculture” conducted by the Vietnam Agriculture Newspaper, Mr. – Rural Development) stated that the unusual weather changes have currently affected many aspects of aquaculture, including shrimp farming.
In addition, the causative agents of white spot disease, acute hepatopancreatic necrosis disease, subcortical necrosis disease and hematopoietic necrosis disease are still circulating in the culture areas. Therefore, the risk of a disease outbreak in farmed shrimp in 2023 is very high.
Referring to the Mekong Delta shrimp farming area, Mr. Tien said that the World Organization for Animal Health list has a number of dangerous diseases, including: acute hepatopancreatic necrosis disease, white spot disease, necrotic disease, subcortical and hematopoietic necrosis. Through active surveillance, the Region VII Department of Animal Health also discovered a number of other pathogens such as microsporidial diseases, pathogens that can cause white stool syndrome.
For five key shrimp farming provinces under the direction of Region VII Animal Health Subdivision, namely Ca Mau, Kien Giang, Bac Lieu, Soc Trang and Tra Vinh provinces, the veterinary sector collected more than 17,000 samples in 2022. More than 1,500 samples tested positive for the diseases mentioned above. Based on this finding, Mr. Tien said there are many dangerous shrimp diseases circulating in the region’s ponds.
Mr. Tien Ngoc Tien, director of the regional veterinary subdivision VII, estimated that in 2023, the risk of disease outbreak in farmed shrimp is very high. Picture: its metal.
Faced with this challenge, Mr. Tien Ngoc Tien offered some solutions at the seminar and recommended shrimp farmers to monitor weather developments as well as environmental monitoring bulletins to address these issues promptly. Anomalies may occur during shrimp farming.
At the same time, farmers need to renovate the pond, control and treat the water supplied to ensure that the water source does not contain pathogens. What makes it special is the decision to buy seeds from reputable farms with a clear provenance to ensure the seeds are disease free.
For seed production facilities, Mr. Tien calls for compliance with seed production regulations to produce healthy seeds. Facilities must also build disease-free shrimp production facilities and not sell infected shrimp to shrimp farmers.
In addition, there should be coordination of disease surveillance between farmers and hatcheries so that when shrimp are detected with unusual signs of death or infectious disease signs and symptoms, the veterinary authority as well as the local government are immediately notified for timely management instructions, thereby reducing the spread of pathogens into the environment is avoided.
The Prime Minister issued Resolution No. 434/QD-TTg approving the National Plan for the Prevention and Control of Some Dangerous Diseases in Aquatic Farmed Products for the period 2021-2030. It sets out a series of proposals and solutions to combat diseases in aquaculture.
Local authorities are currently actively implementing this decision. Encourage passive and active surveillance activities to identify and promptly combat outbreaks and the spread of pathogens.
Breeders and shrimp farms need to coordinate disease surveillance to receive timely treatment instructions and prevent the spread of pathogens into the environment. Picture: its metal.
At the same time, the quarantine will be strengthened, the circulation and transportation of shrimp seeds and aquatic products, which may carry pathogens in the country, will be controlled, and shrimp seeds imported from abroad will be strictly quarantined. With the aim of quickly identifying any pathogens and treating them in good time. It is important to establish a biologically safe breeding process, which is one of the effective solutions for effective disease prevention in shrimp, Mr. Tien said.
There are currently 28 farms across the country that are recognized as disease-free for shrimp. In it there are 25 hatcheries and 3 commercial shrimp farms. In the Mekong Delta in particular, there were ten farms recognized as disease-free in the main shrimp farming provinces under the direction of the Animal Health Subdivision of Region VII. Including 7 hatcheries and 3 commercial shrimp production plants.
Recently, shrimp seed production plants and commercial shrimp farms have actively implemented the construction of disease-free plants. However, according to Mr. Tien, the quantity is still very limited compared to actual demand. Meanwhile, the construction of many disease-free shrimp seed facilities will be an important foundation to help shrimp farmers limit the purchase of unsafe seeds.