A new method for disinfection of aquaculture ponds

In recent years, aquaculture farms have largely relied on antibiotics and chemical disinfectants for pond sanitation. While this method may work well for new ponds, it becomes less effective over time, especially in older breeding systems. Prolonged use of these chemicals has led to the development of drug-resistant bacteria, causing a decline in disinfection efficiency and an increase in disease outbreaks. This not only affects the economic returns of aquaculture but can also lead to total losses in severe cases. To address these challenges, the Haining City Amphibian and Reptile Museum in Zhejiang Province has explored innovative and sustainable disinfection methods. They introduced **BM Ecological Agents**, a bio-engineered product that replaces traditional antibiotics. The results have been impressive. After spraying the agents into turtle ponds, within 30 hours, the water quality improved dramatically—clearing up darkened water and reducing turtle feces. The turtles’ waste became cleaner and more manageable, and even 150 sick turtles were fully recovered. The success rate was nearly 100% for common diseases like red neck disease, shell rot, and skin infections. In addition to external application, the museum also mixed BM agents directly into turtle feed. This boosted feed conversion rates, accelerated growth, and significantly reduced disease occurrences. Turtles fed with treated feed showed better health and vitality. Even moldy or spoiled feed was revitalized, improving its taste and usability. **BM Ecological Agents**, also known as **BM Original Exposure**, are a complex blend of beneficial microorganisms, including photosynthetic bacteria, actinomycetes, lactic acid bacteria, yeast, and mycorrhizal fungi. This microbial consortium offers a wide range of benefits, such as odor control, pathogen suppression, water purification, and improved feed efficiency. It is safe, non-toxic, and has long-lasting effects, making it ideal for aquaculture and turtle farming. The application method used by the Haining museum includes: 1. **Pond Disinfection**: Mix BM agents at a ratio of 1:50 with water and spray the entire area during sunny afternoons to improve the environment. 2. **Water Quality Maintenance**: Dilute 5ml per cubic meter of water initially, then 2ml after 10 days, and repeat every 20 days to maintain clean and healthy water. 3. **Feed Enhancement**: Add 5% BM agent to the feed before mixing and feeding to improve digestion, growth, and overall health. This approach has proven highly effective, offering a sustainable alternative to traditional chemical-based practices while boosting productivity and profitability in aquaculture.

Marine Valve Parts


The valve stem is an important part of the valve. It is used to drive, connect the actuating mechanism or handle, and directly drive the spool to move or rotate, so as to realize the function of valve switch or regulation.Valve stem in the valve opening and closing process is not only moving parts, stress components, but also seals. At the same time, it is subjected to the impact and corrosion of the medium, and it also causes friction with the packing. Therefore, in selecting the stem material, it must be guaranteed that it has sufficient strength at the prescribed temperature, good impact toughness, scratch resistance, corrosion resistance. The valve stem is a vulnerable part, and the mechanical performance and heat treatment performance of the material should be paid attention to when selecting.The valve stem in the valve opening and closing process, under tension, compression and torsion force, and direct contact with the media, as well as the relative motion between the friction and filler, so in the choice of stem material, must ensure that it provides adequate temperature strength, good impact toughness, abrasion resistance and corrosion resistance of.


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