CATDOLL : CATDOLL: Can cod be farmed? How to raise it?

Can cod be farmed? How to raise it?

Cod can be farmed. Wild cod is a marine fish that has always lived in seawater, and lives at a depth of one or two hundred meters underwater. It is a fish species distributed in the middle or lower layers. Therefore, compared with freshwater fish, it is much more difficult to farm cod. However, this does not mean that cod cannot be farmed. There are currently many artificially bred varieties that are less difficult to farm. However, compared with wild cod, the taste of this type of cod is slightly worse. 1. Can cod be farmed? Cod is a very famous fish, and there are many cods for sale in the Chinese market. From the perspective of properties, wild cod lives in the ocean, and is generally distributed at a depth of one or two hundred meters underwater. It is a fish species distributed in the middle or lower layers. Therefore, artificially farmed cod is more troublesome than artificially farmed freshwater fish. However, this does not mean that cod cannot be farmed.

In fact, in real life, many cod are farmed. Many farmers choose to farm cod, and there are also many artificially cultivated and bred varieties. Farming such cod is much simpler than farming wild cod, and the difficulty is not particularly great. Cod is very popular in the market, so farmers can also obtain higher economic benefits. However, compared with wild cod, this kind of farmed cod tastes worse and is not as nutritious as wild cod.

2. How to raise cod 1. Pond: Artificially bred cod can live in ponds. If you want to breed cod, you can choose to build a breeding pond in a suitable place. The size can be between 4-15 acres, and cod fry can be released according to the size of the pond.

2. Feeding: Cod likes to eat meat, so they need to be given enough meat during the breeding process so that they can grow better. Small fish and shrimp are the two most common types. In addition, you can also feed them some common invertebrates.

3. Water quality: Controlling water quality is also an important task. Monitor changes in water quality in a timely manner, and change water or clean the pond in time when the water quality is poor. In addition, it is best to do regular disinfection.

4. Water depth: Wild cod need to live in water 100 to 200 meters deep, but artificially cultivated cod do not need to live in this way. Generally speaking, a water depth of 1.5 to 2.5 meters is sufficient.

What should we pay attention to when breeding adult freshwater cod? How to improve the breeding technology level?

Adult freshwater cod can be raised in open ponds, cages and industrial farms. Currently, open ponds and factory farming are mainly used. The outer pond farming area is generally 5-20 acres, with a water depth of about 3 meters. Water intake and drainage should be convenient. The power of the aerator is set at 0.6 kilowatts per acre. Water buried mud ponds are generally used for factory farming, with an area of ​​50-500 square meters, a water depth of more than 1.2 meters, and an aerator power of 5 watts/square meter. Shading and heat preservation can be carried out according to the needs of farming.

When the size of freshwater cod fry reaches more than 3 cm, the fish have begun to consume artificial feed and can be put into the breeding pond for adult fish breeding. The stocking density in the outer pond is generally 1500 ~ 3500 fish/mu. The breeding density depends on the breeding conditions, and the factory breeding density is 20-25 heads/square meter.

The pellet feed in the seedling stage requires crude protein ≥45% and fat ≥8%; in the adult fish breeding period, the crude protein of the feed is ≥32% and the fat is ≥6%. Feed at 6:00, 10:00 and 17:00 every day. Observe the fish's food intake and master the daily food intake. The general food intake rate in the seedling stage is 4% to 5%, and the food intake rate in the adult fish breeding period is 3% to 4%. After 12-15 months of breeding, when the body size reaches more than 500 grams per tail, it can be put on the market.

Pay attention to water quality control, regularly monitor various water quality indicators, control dissolved oxygen above 6 mg/L, pH between 7.5 - 8.5, ammonia nitrogen < 0.5 mg/L, nitrite < 0.1 mg/L, and focus on water quality. Probiotics such as lactic acid bacteria, bacillus, and photosynthetic bacteria are often dispersed. The water quality should be rich, active, tender, and cool to promote the healthy growth of freshwater cod.

In daily management, dissolved oxygen should be maintained above 6 mg/l. In the breeding process, disease prevention and control must adhere to the principle of "prevention first, prevention and control combined". Water quality management and disinfection of breeding ponds should be done well every day to avoid illness caused by human infection. Accurate feeding management is the key to successful breeding. Feeding must follow the principle of "timing, fixed point, quantitative, excellent bending and hidden quality improvement" to feed in time.

The above are the key points about the breeding technology of adult freshwater cod. They are provided for your reference and learning. We hope they are helpful to you. Please forgive us for any shortcomings.

During the breeding process, attention should be paid to water quality. The water source should be changed regularly, and the oxygen in the water should be kept sufficient. Very nutritious feed should be fed, diseases should be prevented in time, and the fish should be cleaned regularly.

Pay attention to the breeding density and choose high-quality fish fry. During the breeding process, you must pay attention to timely replacement of water resources to ensure the fertility and nutrients of the water. Pay attention to the combination of feed. Relatives must have particularly strong basic theoretical knowledge and can learn from people around them.

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