Ca Mau pushes green technology in shrimp farming

Vietnam’s largest shrimp-producing province is turning to high-tech, environmentally friendly methods to expand intensive and super-intensive shrimp farming. Traditional models have struggled with wastewater, disease outbreaks, and ecological risks, prompting authorities to seek sustainable alternatives.

In 2023, Ca Mau launched a pilot project using three-stage, super-intensive whiteleg shrimp farming with recirculating aquaculture systems (RAS). The system requires minimal water exchange and incorporates strict biosecurity measures. Led by the provincial Department of Science and Technology, in partnership with local firm SAEN, French research organization CIRAD, and Nguyen Nhut of the Aquaculture Research Institute II, the model has achieved success rates above 80% per crop while significantly reducing costs.

The technology can be adapted to existing ponds without major investment. It eliminates wastewater discharge, aligning with green growth and circular economy goals. “This is a breakthrough technology both domestically and internationally, low-cost, accessible, and suitable for many farmers,” said Nguyen Nhut.

Based on early success, the provincial government approved scaling up the model through 2030. Phase one targeted 100 hectares by 2026, but farmers registered the entire area within months, 17 months ahead of schedule. Farmers report healthier shrimp, shorter grow-out cycles, and lower feed, energy, and environmental costs.

Officials say collaboration between government, scientists, businesses, and farmers has been key. “Farmers are no longer isolated operators; they are integrated into a professional value chain and trained in new techniques,” said Mai Xuan Huong, deputy head of the provincial science management office.

The model not only increases productivity and reduces costs, but also minimizes greenhouse gas emissions and water pollution. It positions Ca Mau shrimp for international certifications such as ASC, BAP, and GlobalGAP, expanding access to markets with strict environmental standards.

Vice Chairman Le Van Su of the provincial People’s Committee said the initiative could grow to 1,000 hectares, creating a “breakthrough” in sustainable shrimp production and driving high-tech agricultural growth in the region.

Source:  https://vietfishmagazine.com/