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Fish Breeding Techniques For Inexperienced People

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Fish Breeding Techniques For Inexperienced People

Mud fish is currently a commercial fish bringing high revenue. However, for the fish to achieve the quality that meets the needs of the user. Sure fish farming techniques certain standards are required. Content of today’s article we will help you get more information on this topic. Do not rush to skip this article.

  1. Prepare ponds and tanks

People can raise grasshoppers in earthen ponds, cement tanks, tarpaulin-lined tanks, depending on investment conditions to decide on the farming area.

The tank should be designed with a moderate area from 5 to 10m2 to facilitate the care, management and harvesting. Ponds, tanks with active water, drains taking in and removing water opposite each other are best, ensuring cool in summer, warm in winter.

  1. Prepare to breed

To avoid much loss, farmers should buy large-sized seeds, choose the same size, bright color, healthy, no scratches, no disease.

Should stock size 2-3g / head. Stocking density: 30-50 fish/m2. Or stocking 10-15 kg of seed per 100 m2 of pond, seed size from 300-350 fish/kg.

Preparing healthy and uniform species of fish is something that farmers cannot ignore
Preparing healthy and uniform species of fish is something that farmers cannot ignore

Stocking time: From March to April after rice transplanting is complete, if raised in cement tanks or tarpaulin tanks to avoid flooding, seeds can be stocked all year round. After 3-4 months of culture, commercial carp reaching the size of 25-40 fish/kg can be trimmed or collected as a whole.

Before stocking, it is necessary to bathe fish for disease prevention with 3o/oo salt water for 10-15 minutes, or take a bath with Povidine at a dose of 5ml/m3 of water.

  1. Management and care

The water level is not more than 40cm, in the pond there are ditches and holes 50-60cm deep for fish to hide. Water hyacinth can be released to create shelter for fish to avoid heat, cold and to clean the water environment. When it is cold, it is also possible to use rice straw for fish shelter, and at the same time pump water from 70-80cm high to intercrop with other fish such as black carp, carp to take advantage of excess food.

Mud bottom must be clean, water level: 20 – 40 cm, bottom mud thickness: 15-20 cm. Apply rotting manure before transplanting rice to create natural food for grasshoppers. Dig a small ditch 1.2-1.5 m wide, 30-40 cm deep running around the field for fish to shelter from the sun, avoid spraying pesticides and drain water when harvesting. Farming in the field can achieve a survival rate of 70-80%.

Chach fish is relatively easy to raise, the food of Chach fish is simple (fish eats organic humus), when young, feed with protein of over 30%, then gradually reduce, 30 days later for feeding. Lach fish eat food with 20-25% protein, feed 2 times/day (morning, evening). Average feed ratio 1.4.

The fish can be raised in ponds or in the field
The fish can be raised in ponds or in the field
  1. Disease prevention and treatment

Unlike terrestrial animals, when fish are sick, detecting and diagnosing the disease correctly encounters many difficulties, requiring farmers to have knowledge and experience. Once the fish disease is identified, the treatment is very difficult and expensive. It is not necessary to treat each fish, but to treat the whole fish in the pond, so it is necessary to determine the right drug and appropriate drug concentration. On the other hand, when treating fish diseases, it does not always have the desired results and more or less affected the growth rate of fish, affecting the natural food and the water environment. In addition, some drugs can accumulate in the body of fish and have the potential to affect human health. Therefore, in the process of raising freshwater fish, disease prevention is extremely important, has long-term significance and is decisive.

When rearing, it is necessary to follow the correct farming techniques. Feeding fish with adequate nutrients, especially when the fish is young, must be especially careful when switching to eating. Feeding fish according to the “4 determination” method: determining the quality of food, determining the amount of food, determining the feeding location, and timing the feeding.

However, when the environment is polluted with fish and adverse weather conditions, the fish still suffers from the following diseases:

The fish can be infected with fungus, red spots, ulcers, intestinal diseases, etc. To prevent the disease, it is recommended to mix vitamin C and digestive enzymes into the food for the cockroaches, periodically feed them twice a month, for 3-5 days each time in a row. customary. Pay attention to change the water periodically to avoid contamination.

When the fungus is detected, the fish can be bathed with the following chemicals: Salt water 30/00 or KMnO4 dose of 20g/1m3 of water, time 10-15 minutes.

Mix antibiotics into the feed for the snails to eat: Doxycycline 0.2 – 0.3 g/1kg of feed; Oxytetracycline 2-4 g/kg feed, feed for 5-7 consecutive days.

Sick fish should be isolated to another tank to avoid spreading
Sick fish should be isolated to another tank to avoid spreading
  1. Harvest

When the fish reaches commercial value, do not feed the fish for 1 day before selling, and do not use antibiotics for 15 days before selling.

Due to the habit of burrowing deep in the mud, harvesting will be more difficult than other cultured species.

Place a basket containing the bait of hearing or a yellow apple snail with its shell removed in the feeding position. Place the squirrels at the time of the previous evening, and early the next morning, pick up the big ones and drop them down to continue raising them.

Before harvesting, it is necessary to drain the farming fields as well as the ditches and leave them for 3-4 days for the fields and ditches to harden. Then cut a groove along the field or cut in the shape of a herringbone.

Next is to add new water to let the fish enter the canal according to the new water from which we just need to collect. During the collection process, a mesh net can be used depending on the size of the fish to be collected to filter out the young or those that are carrying eggs to use as a parent or a seed for the next crop.

The process of harvesting fish should be avoided to damage the fish skin
The process of harvesting snakehead fish should be avoided to damage the fish’s skin

Catching carefully not to scratch the fish, put the fish in a styrofoam box, do not add water or add little water so that the fish does not lose its viscosity.

We are very happy to share with farmers the technique of raising mudfish. Do not forget to follow our website to update more useful information about the livestock industry.

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