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billion additional people. The growth of aquaculture will become an increasingly important part of that future food supply, while paying particular attention to environmental concerns. Higher fish density can lead to pathogen increase which is a significant threat to aquaculture operations. According to a 2012 ‘World Review of Fisheries and Aquaculture’ report, ‘disease outbreaks in recent years…have affected… marine shrimp farming in several countries in Asia, South America and Africa, resulting in partial or sometimes total loss of production.
Ozone & Aquaculture
Ozone is increasingly used in aquaculture due to its numerous advantages over traditional water treatment methods. The use of ozone is the most effective method for providing high-quality water for fish farming. Disinfection by ozone can reduce the risk of disease in aquaculture systems and results in less need for vaccination, less use of anti-biotics and leads to higher growth rates and decreased mortality. As the strongest, technically producible oxidising agent it fulfills further functions apart from disinfection. During the ozonation process ozone is consumed compleelty and beraks down again inot oxygen.
- Increase D.O. (Dissolved Oxygen)
- Reduction of Diseases, reduce stress on the fish and Prawn
- Reduce Ammonia and Nitrite
- Faster Growth Rate and Lower FCR
- Enables higher stocking density
- Better quality of Prawn and Fish
- Higher Standard of Environmental Control and much better pond bottom
Ozone is used in fresh and saltwater (marine) aquaculture to improve the water quality by reduced organic loading, bacteria, viruses, fungi, etc.
Increase D.O. (Dissolved Oxygen)
Dissolved oxygen content of the water of fish ponds is one of the most important parameters of water quality, as the oxygen is a vital condition for all the organisms living in the water and having an aerobic type of respiration.
The DO content of the fish pond varies over a period of 24 hours. The photosynthesis starts gradually from the early morning hours while the DO content of the water is increasing. The maximum value can be observed early in the afternoon.
From the late afternoon hours photosynthesis is rapidly decreasing and is stopped after dark. The DO content of the water is also decreasing during this period. Also at night time the algae go through the respiration cycle (opposite effect of photosynthesis), giving out CO2 and consuming the DO .
This means that during night times the DO levels keep falling and are lowest in the early morning hours. This puts severe stress on the Prawn/Fish. Especially during molting periods. It is extremely important to maintain sufficient DO levels at all times.
This is accomplished by keeping the Ozonator running through the night. Maybe turned off during afternoon hours, between 10 AM and 3 PM. This helps to keep the DO levels at a steady level and not allow to go up and down causing stress.
Prawns are naturally stressed during molting, but if the DO levels are lower than 4 ppm (mg/l), it increases the stress. The opposite is also true, where by having sufficient DO levels, the prawns and Fish are less stressed, feed better and grow faster.
Reduction of Diseases, reduce stress on the fish and Prawn
In addition to Source water being polluted, the high stocking densities, associated fish stress and increased nutrient loads create an ideal environment for fish pathogens.
Ozone effectively disintegrates a range of bacterial, viral, fungal and protozoan fish pathogens.
Removal of Ammonia and Nitrite from the water
Ammonia and Nitrite can accumulate as production intensifies. Bacteria that process ammonia into nitrite operates more efficiently under high organic loadings than bacteria that process nitrite to nitrate and levels of nitrite rise accordingly. High levels of nitrite can be Toxic to fish.
Ozone removes nitrite by direct oxidation to nitrate and by reducing organic loading
Faster Growth Rate and Lower FCR
With increased DO, reduced ammonia and nitrite, less pathogens and virus, the Prawns and the Fish are more healthy and not stressed. They have higher resistance to any viral attacks. A healthy environment, and healthy fish naturally leads to faster growth. The feed is better utilised leading to a lower FCR.
Better quality of Prawn and Fish
Ozone reduces the organic load, improving the water quality, and reducing the yellowish colour, and undesirable smells. This makes the Prawns and Fish healthier and the fish is much more white and not off-white as seen in polluted ponds. The taste is also better.
Higher Standard of Environmental Control
As the organic load is significantly reduced, the COD and BOD levels reduce. The disinfection process kills the bacterial and viral pathogens. Post harvest, when the pond is emptied, the effluent waters introduced in to the environment are much more likely to meet the norms and regulations of the National Fisheries Development Board (NFDB) and the Coastal Aquaculture Authority (CAA).
Fish Farms to Produce Nearly Two Thirds of Global Food Fish Supply by 2030,
WASHINGTON, February 5, 2014 – Aquaculture – or fish farming – will provide close to two thirds of global food fish consumption by 2030 as catches from wild capture fisheries level off and demand from an emerging global middle class, especially in China and India, substantially increases. These are among the key findings of “Fish to 2030: Prospects for Fisheries and Aquaculture” – a collaboration between the World Bank, Food and Agriculture Organization of the United Nations (FAO) and the International Food Policy Research Institute (IFPRI).
TES – Ozonators:
We are the only manufacturer in India, using in-house developed Glazed CERAMIC coating technology for the electrodes. The electrode is the heart of an Ozonator.
Typically other ozonators use GLASS electrodes, which tend to have a very short life of a few months, before they crack or puncture, in the ozone formation process. Most other sources of Ozonators are resellers of the product imported from china, etc., and do not have any control on the quality of the product.
We manufacture all our products from scratch, at our factory in Chennai, TN, where we have an in-house Research and Development team. This allows complete control over the quality of the product.
Some our customers include:
- BMR Hatcheries ( Using TES Ozonators in all of their hatcheries at multiple locations along the east coast, Chennai, Marakkanam, etc.,
- Golden Marine Hatcheries, Marakkanam near Pondicherry
- Godavari Aquatics, Kakinada, AP
- DSF Aqua, Kakinada, AP
- We also export our product to several countries.
- All TES Ozonators come fully integrated with the required oxygen concentrators.
- Ozone is produced onsite, as and when required. No storage necessary.
- No Chemicals involved at all.