{"id":5777,"date":"2025-07-18T11:15:37","date_gmt":"2025-07-18T04:15:37","guid":{"rendered":"https:\/\/truonghaitien.com\/?p=5777"},"modified":"2025-07-18T11:22:10","modified_gmt":"2025-07-18T04:22:10","slug":"applications-and-roles-of-seaweed-in-aquaculture","status":"publish","type":"post","link":"https:\/\/truonghaitien.com\/en\/applications-and-roles-of-seaweed-in-aquaculture\/","title":{"rendered":"Applications and Roles of Seaweed in Aquaculture"},"content":{"rendered":"

Seaweed, particularly extracts from brown, green, and red algae, is increasingly gaining attention and being widely applied in aquaculture. With its rich nutritional composition and natural immune-boosting properties, seaweed has proven effective in improving growth performance, enhancing disease resistance, and stabilizing the farming environment.\u00a0<\/strong><\/p>\n

Seaweed \u2013 A Natural Nutritional Source for Aquatic Animals<\/strong><\/span><\/p>\n

Seaweed contains high levels of protein, essential amino acids, vitamins (A, B, C, E), minerals, and unsaturated fatty acids (such as DHA and EPA). When included in the diet, seaweed extracts can help aquatic animals:<\/p>\n

– Increase growth rate and improve feed conversion ratio (FCR).<\/p>\n

– Enhance coloration, sheen, and meat quality.<\/p>\n

– Improve digestion and nutrient absorption.<\/p>\n

Several studies have shown that using Sargassum extract or Ulva meal at levels of 2\u20134% in the diet can significantly improve growth, strengthen the immune system, and increase survival rates in whiteleg shrimp (Litopenaeus vannamei) compared to control groups.<\/p>\n

Enhancing Immunity and Preventing Diseases<\/strong><\/p>\n

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Bioactive polysaccharides found in seaweed, such as fucoidan, laminarin, and carrageenan, have the ability to stimulate the natural immune system of aquatic animals:<\/p>\n

– Enhance immune enzyme activities such as lysozyme and phenoloxidase.<\/p>\n

– Reduce infection rates caused by Vibrio bacteria and White Spot Syndrome Virus (WSSV).<\/p>\n

– Increase stress tolerance during environmental changes.<\/p>\n

– Black tiger shrimp (Penaeus monodon) and whiteleg shrimp (Litopenaeus vannamei) supplemented with extracts from Padina, Gracilaria, or Sargassum showed significant improvements in disease resistance, especially during periods of adverse weather conditions.<\/p>\n

Improving the Aquaculture Environment<\/strong><\/span><\/p>\n

In addition to serving as a dietary supplement, seaweed plays an important role in stabilizing the culture environment:<\/p>\n

– Absorbs excess nutrients (NH\u2083, NO\u2082\u207b, PO\u2084\u00b3\u207b)<\/p>\n

– Limits the growth of harmful bacteria through biological competition.<\/p>\n

– Generates oxygen and stabilizes pH levels through photosynthesis.<\/p>\n

In recirculating aquaculture systems (RAS) or integrated multi-trophic aquaculture (IMTA) models, seaweed contributes to natural wastewater treatment, reduces pollution, and supports the development of \u201cgreen \u2013 clean \u2013 sustainable\u201d farming systems.<\/p>\n

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Practical Applications in Shrimp and Fish Farming<\/strong><\/span><\/p>\n

In Vietnam, several farms in provinces such as S\u00f3c Tr\u0103ng, B\u1ea1c Li\u00eau, and Ninh Thu\u1eadn have experimented with and applied seaweed-based products in aquaculture:<\/p>\n

– Mixing seaweed powder into shrimp feed during the post-larval stage shortened the grow-out period by 10\u201315 days.<\/p>\n

– Using fucoidan extract from brown seaweed helped reduce shrimp mortality caused by environmental stress during pond transfer.<\/p>\n

– Farming tilapia and pangasius in ponds integrated with Ulva seaweed improved survival rates and reduced toxic gas levels.<\/p>\n

A Sustainable Path for the Aquaculture Industry<\/strong><\/span><\/p>\n

In the context of the aquaculture sector facing challenges related to environmental issues, diseases, and production costs, the application of seaweed offers not only technical benefits but also aligns with the trends of organic, circular, and sustainable agriculture development.<\/p>\n

Seaweed is a valuable natural resource with great potential for application in aquaculture. Efficient extraction and utilization of bioactive compounds from seaweed can help increase productivity, reduce disease treatment costs, and contribute to the sustainable and environmentally friendly development of the aquaculture industry.<\/p>\n

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Seaweed Extract\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/em><\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Seaweed Feed Grade (Liquid)<\/em><\/strong><\/p>\n

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SPIRULINA Seaweed<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Seaweed, particularly extracts from brown, green, and red algae, is increasingly gaining attention and being widely applied in aquaculture. With its rich nutritional composition and natural immune-boosting properties, seaweed has proven effective in improving growth performance, enhancing disease resistance, and stabilizing the farming environment.\u00a0 Seaweed \u2013 A Natural Nutritional Source for Aquatic Animals Seaweed contains […]<\/p>\n","protected":false},"author":2,"featured_media":5793,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[91],"tags":[],"yoast_head":"\nApplications and Roles of Seaweed in Aquaculture | Tr\u01b0\u1eddng H\u1ea3i Ti\u1ebfn<\/title>\n<meta name=\"robots\" content=\"index, follow\" \/>\n<meta name=\"googlebot\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta name=\"bingbot\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/truonghaitien.com\/en\/applications-and-roles-of-seaweed-in-aquaculture\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Applications and Roles of Seaweed in Aquaculture | Tr\u01b0\u1eddng H\u1ea3i Ti\u1ebfn\" \/>\n<meta property=\"og:description\" content=\"Seaweed, particularly extracts from brown, green, and red algae, is increasingly gaining attention and being widely applied in aquaculture. 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