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One type of tank culture, known as a combined extensive-intensive CEI system, or Dekel system, recycles water between culture tanks and large earthen reservoir ponds, which serve as biofilters to maintain water quality. The volumetric ratio between the culture tank and reservoir pond ranges from to or more. Aeration is employed to increase production in tanks because dissolved oxygen is usually the limiting water quality factor. Production levels are considerably lower in tanks with limited water exchange, but water use efficiency is much higher in these systems.

In temperate regions, recirculation systems have been developed to culture tilapia year-round under controlled conditions. Although the design elements of recirculation systems vary widely, the main components of recirculation systems consist of fish rearing tanks, a solids removal device, a biofilter, an aerator or oxygen generator and a degassing unit. Some systems apply additional treatment processes such as ozonation, denitrification and foam fractionation.

Rearing tanks are generally circular to facilitate solids removal, although octagonal tanks and square tanks with rounded corners provide a suitable alternative with better space utilisation. Drum filters are widely employed for solids removal although other devices bead filters, tube settlers are often used. Methods used for ammonia removal consist of a flooded moving bed filter, trickling filter, fluidised sand filter or rotating biological contactor. In oxygenated systems, a stage is provided for vigorous aeration to vent carbon dioxide into the environment.

Rearing tank retention times are relatively short e. Most recirculation systems are designed to replace five to 10 per cent of the system volume each day with new water.

Tilapia Farming Guide Pdf Philippines

This amount of exchange prevents the build-up of nitrates and soluble organic matter that would eventually cause problems. However, the final standing crop is not the best indicator of system efficiency; the maximum daily feed input to a system is a better indicator of both productivity and efficiency. You can find additional information on on the breeding and hatchery stages of tilapia production here. You can view the full FAO Guide by clicking here.

Ponds Pond culture of tilapia is conducted with a variety of inputs such as agricultural by-products brans, oil cakes, vegetation and manures , inorganic fertilisers and feed. Fish produced through these expensive methods are generally filleted and sold in export markets. Floating cages The culture of Nile tilapia at high densities in floating cages is practiced in large lakes and reservoirs of several countries including China, Indonesia, Mexico, Honduras, Colombia, and Brazil. Other advantages include: Use of waterbodies that cannot be drained or seined and would otherwise not be suitable for aquaculture.

Flexibility of management with multiple production units. Ease and low cost of harvesting. Close observation of fish feeding response and health. Relatively low capital investment compared to other culture techniques. However, there are a number of disadvantages, which include: Risk of loss from poaching or damage to cages from predators or storms. Less tolerance of fish to poor water quality. Dependence on nutritionally complete diets. Greater risk of disease outbreaks.

Tanks and raceways Tilapia are cultured in tanks and raceways of varying sizes m 3 and shapes circular, rectangular, square and oval. Also, choose a place that is free from floods to avoid dirt water getting into the structure. Consider the size of your backyard or garden to determine the size of the pond. Consider also the amount of fish you need on a monthly basis to come up with the right size. This size can get you started: 8 feet long, 4 feet wide and 2. You can increase or decrease it, considering these two factors, but ensure one mature tilapia has a water space of 1 square feet or 0.

The next thing is to choose the type of fish pond that suits your specific needs. You can choose from earth ponds, kiddie pools, lined plywood troughs or fiberglass hot tubs. Earth ponds are preferred in places with soils that retain a lot of water and with low infitration rates.

How to Farm Tilapia Fish in a Pond at Home | ToughNickel

These types of ponds can also be constructed anywhere with the help of lining materials such as nylon paper sheets. They are easy to construct, but require a lot of maintenance work. The other pond types are a bit expensive. You will need to buy their construction materials and hire an expert to install them for you. The best thing about these structures is that they require little maintenance work. Get water from a safe source, and the water should be clean. Use a suitable container to fill your pond.

Some soils or pond materials can have harmful chemicals. Test the added water for any chemicals. Some chemicals that you should test and remove from the water include: mercury, lead and cadmium.

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Use detoxifiers to remove any toxic or heavy metals. Ensure the water is at the right pH level. Tilapia survives in the pH range. Test the pH and adjust it if it is not in this range. Use alkaline or acidic products to correct the pH. Tilapia is a freshwater fish which means that it finds it difficult to survive in saline conditions.

The salt levels should be below 18 parts per thousand PPT. If you have to add salts to help with situations such as population control, keep them at lower levels. If you are using flowing water, install filters at the intake to trap solids both suspended and dissolved and block unwanted aquatic animals. To prevent your fish from swimming away, install another filter at the outlet. Keep testing the water for toxicity, pH and salinity to ensure it is always suitable for the aquatic life. Start by adding fertilizer to the pond one week before introducing the fish.

This will boost the growth of algae. Get tilapia fingerlings young fish from a reputable source. The number will depend on the size of your pond.

Tilapia Farming in Ponds Part 1 : Tilapia Farming in the Philippines - Agribusiness Philippines

The recommended number of fingerlings per square meter is 5. Use this figure to calculate the exact number for your pond. It is important to get the breeders in pairs. The recommended number is 20 pairs per square feet. The breeders reproduce within 10 weeks to provide fingerlings. When transferring the fingerlings or breeders, ensure the pond water is at the same temperature as the water in the fish container. And it is recommended to stock when the weather is cold. During the cold months, the water temperature can fall far below this range forming ice on the surface.

Use a suitable heating system, like an electric heater or heat exchanger, to raise the temperature of water. You can also shade the pond in the hot months. Lighting is a very important factor in raising tilapia. It is needed to keep the fish active and to help the aquatic plants photosynthesize. Let your fish enjoy 18 hours of light per day. Use light bulbs to illuminate the structure at night.

Like any other organism, tilapia needs enough air to survive. The aerobic bacteria present in the pond also need oxygen, primarily to break down compounds like ammonia. Pond water is usually calm, something which prevents air from penetrating into the water. You need to keep the water surface in motion to create air entry. A fountain or bubbler can help with the process. It can feed on algae or water insects. Keep adding fertilizer or chicken droppings to grow enough algae and attract insects such as termites and worms. You can also use supplement feeds, such as rice bran, flax, wheat germ, bread crumbs and vegetable products.

Feed the fish every morning and afternoon. Note, do not allow food remains to stay for long in the pond as they can become toxic or change the water chemistry. Many tilapia fish feeds have been manufactured, but Purina Mills Aquamax stands out. It took me a while to discover this feed and I regret not knowing about it when I was starting this economic activity. The best thing about it is that it allows the fish to grow quicker and healthier and reproduce faster.

I'm harvesting large-sized, fleshy tilapia because of this feed! If you are getting those skinny and bony fish, it is the high time you start using Purina Mills Aquamax! When you begin using this feed, you will start getting meaty fish in short periods of time. Formulated with wheat germ, bread crambs and other nutritious products, this feed allows your fingerlings to grow to mature, big fish in less than 6 months. Parasites can infest your pond if you do not observe cleanliness. You can also have parasites if the water is saline.

The harmful organisms lower the quality of fish. Worms are the most common tilapia parasites. You can prevent parasites by keeping the water clean and free from salts. If there is a parasite attack, use appropriate chemicals to kill the threatening organisms. For parasites living in the water not on or inside the fish body , you use an ultraviolet sterilizer to kill them.

Diseases are some of the worst things that can happen to your tilapia. You can lose all your fish if there is an outbreak of a disease. Some diseases to be careful about are columnaris, streptococcus and trichodina. You can prevent many diseases by keeping the system clean and avoiding stressful situations such as overcrowding and disturbance.

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  • If some of your fish are infected, you can quarantine them to control the spread of the disease. You can also use medication to treat the sick tilapia. There are a number of mammals and birds that feed on tilapia. Some predators you should be aware of include: mongoose, heron and eagle. Use a wire-net fence to keep the animals away, and add a net over the pond to prevent birds from accessing it.

    Maintaining a fish pond is a great way to create a healthy habitat for the aquatic life. If a pond is well maintained, it also adds aesthetic beauty to a garden or backyard. Clean the pond regularly as dirt can give it a bad shape and harm the aquatic life. Install an overhead barrier to prevent leaves from falling directly into the pond. Trim any branches hanging over the pond. Drain the water if it becomes too dirt and scoop out excess sludge before adding fresh water.

    Grow plants in your pond. The aquatics have a lot of benefits. They help aerate the water and also make the slough lively and beautiful. You also need to control the growth of the plants, including the algae. If you are using pumps, fountains or filters, ensure you inspect and maintain them regularly. Leaks cause water loss, so repair them immediately after they occur. Tilapia is ready for harvest in months. After this period, you can have a continuous supply of fresh and organic fish in your home.

    To avoid overcrowding, sell some of them as fingerlings, breeders or fillets. Use a lift net or dip net to catch the mature ones. If you want to harvest all of them at once, do it in the early winter. You can then stock your pond again. This is how simple it is to farm tilapia in your home backyard. There is nothing complicated in the whole process. You can do it on your own. You can utilize that small space in your garden and use rainwater from your roof to carry out the economic activity.

    And the best thing is that you cannot break the bank to establish the pond and raise the aquatic animal. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters. I constructed a pond and intend to put tilapia in it. The pond is about 90 sq. What is the ideal number of fingerling to put in my pond? It depends on how quick your water gets contaminated. You can always change if it excessively accumulates dirt and threatens the fish.

    It requires some special care and may not survive pretty well in natural waters. As for the taste, not testier than the Nile one. There is no preparation needed, you just collect the dry droppings and pour them in the pond. I would put five fingerlings per square meter. If your pond is deeper than 2. It is just the color, but black tilapia is usually hardy and can grow bigger.

    Tilapia farming

    Concerning the benefits, it require lesser food and you can farm a lot of them in the pond because they don't grow big. You can, but this fish requires unlimited space, so the drum should be spacious and able to hold important things such as soil, small plants, etc! Yeah, oxygen is needed in all kinds of ponds and will always be available so long they are open.

    It is so delicate and not resistant to some harsh conditions, so farmers don't like farming it. It can't also survive pretty well in natural waters - rivers, lakes, etc. I would like to start a tilapia farm on my rooftop, is this possible? It is possible without flowing water, and as far as material is concerned, as long as it is not harmful to the fish, you can use it.