{"id":6089,"date":"2025-08-22T14:36:26","date_gmt":"2025-08-22T07:36:26","guid":{"rendered":"https:\/\/truonghaitien.com\/?p=6089"},"modified":"2025-08-22T14:36:26","modified_gmt":"2025-08-22T07:36:26","slug":"cyanobacteria-a-hidden-threat-to-shrimp-ponds","status":"publish","type":"post","link":"https:\/\/truonghaitien.com\/en\/cyanobacteria-a-hidden-threat-to-shrimp-ponds\/","title":{"rendered":"Cyanobacteria \u2013 A Hidden Threat to Shrimp Ponds"},"content":{"rendered":"

Blue-green algae (Cyanobacteria), also known as cyanophytes or blue algae, are one of the most dangerous agents causing a range of serious health issues in farmed shrimp \u2014 especially liver and intestinal diseases<\/span><\/p>\n

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Cyanobacteria<\/em><\/span><\/strong><\/p>\n

Cyanobacteria not only compete for nutrients with beneficial algae species, but also release toxins that directly affect the shrimp\u2019s immune system and hepatopancreas function. When their density increases \u2014 especially during hot, sunny days \u2014 they significantly reduce dissolved oxygen levels in the water, secrete mucus-like substances that clog shrimp gills, and create favorable conditions for harmful bacteria such as Vibrio to thrive. Many farmers report that after blue-green algae appear in the pond, their shrimp show signs of reduced appetite, surfacing behavior, white feces, and rapid deterioration in health.<\/span><\/p>\n

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Cyanobacteria bloom in shrimp pond<\/em><\/span><\/strong><\/p>\n

One of the most severe consequences of shrimp consuming blue-green algae is damage to the hepatopancreas, leading to liver atrophy and empty gut syndrome \u2014 conditions considered the \u201cgateway\u201d to various other diseases such as liver necrosis, EMS (Early Mortality Syndrome), and secondary bacterial infections. According to experts, toxins such as microcystin and saxitoxin released by blue-green algae can damage liver cells, impair nutrient absorption, slow down growth, and significantly reduce shrimp survival rates.<\/span><\/p>\n

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Diseased shrimp<\/em><\/span><\/strong><\/p>\n

Given this threat, timely control and management of blue-green algae has become a critical factor in successful shrimp farming. Experts recommend that, right from the pond preparation stage, farmers must thoroughly eliminate residual algae and organic matter at the pond bottom \u2014 key conditions that promote cyanobacteria growth.During the culture period, it’s essential to tightly manage feeding rates, regularly siphon pond bottoms, and maintain stable water quality parameters \u2014 especially pH and dissolved oxygen levels.<\/span><\/p>\n

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Pond preparation<\/span><\/em><\/strong><\/p>\n

When blue-green algae (cyanobacteria) bloom at high densities, farmers can apply treatment measures such as broadcasting quicklime in the late afternoon on sunny days, combined with dolomite to maintain the buffering system and stabilize pH levels. In some cases, BKC (Benzalkonium Chloride) or copper sulfate may be used at appropriate dosages; however, special attention should be paid to shrimp health during this period.<\/span><\/p>\n

After treatment, adding probiotics to decompose dead algae and stabilize the pond\u2019s bottom microflora is essential, in order to prevent the generation of toxic gases such as ammonia (NH\u2083) or hydrogen sulfide (H\u2082S) \u2013 both of which are indirect causes of hepatopancreatic diseases in shrimp.Farmers may refer to several products from Truong Hai Tien Company as follows:<\/span><\/p>\n

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At the same time, enhancing the shrimp\u2019s immune system should also be a priority. Using high-quality feed, supplemented with digestive enzymes, vitamin C, and immune-boosting additives helps shrimp better resist environmental pathogens. Truong Hai Tien Company offers a variety of immune-enhancing and digestion-supporting supplement products, such as:<\/span><\/p>\n

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In practice, observations from key farming areas show that shrimp ponds with effective early-stage control of blue-green algae (cyanobacteria) tend to have significantly higher survival rates compared to ponds where this factor is overlooked. This highlights that, for a successful farming season, farmers must not only focus on seed quality and nutrition, but also place special emphasis on water quality management\u2014among which, controlling blue-green algae is one of the top priorities.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Blue-green algae (Cyanobacteria), also known as cyanophytes or blue algae, are one of the most dangerous agents causing a range of serious health issues in farmed shrimp \u2014 especially liver and intestinal diseases Cyanobacteria Cyanobacteria not only compete for nutrients with beneficial algae species, but also release toxins that directly affect the shrimp\u2019s immune system […]<\/p>\n","protected":false},"author":2,"featured_media":6051,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[91],"tags":[],"yoast_head":"\nCyanobacteria \u2013 A Hidden Threat to Shrimp Ponds | 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 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