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Giant fish – The most profitable farming model

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Giant fish - The most profitable farming model
Guide to raising giant fish
Model of giant catfish farming

Giant fish is considered as an object of the most effective enrichment of households. Currently, the giant catfish farming industry is very developed in our country and brings high income efficiency to people.

Because of its ability to easily adapt to harsh environments, not being picky about food, and easy to raise, giant fish are very popular in the market. Let’s learn the technique of raising giant fish to achieve high efficiency with Agrisearch.net!

1. Prepare before raising giant fish

Biological characteristics of giant fish

Giant fish is a typical fish of the tropics, usually distributed in calm and freshwater areas where many aquatic species live. In our country, giant catfish is a species that is raised and caught mainly in the southern delta.

This species has the ability to easily adapt to the environment including harsh environments, so it can live in freshwater, brackish water such as ponds, lakes, rivers, swamps or water with poor oxygen, stagnant water.

Although the giant catfish cannot tolerate cold, it has good heat tolerance. The giant fish is easy to raise, it is omnivorous and mainly consists of floating duckweed and wild vegetables.

Instructions to prepare the giant fish pond

Giant fish pond
Prepare pond for giant fish

Choose a farming location where there is clean, unpolluted water and an abundant amount of water that is enough to supply the whole fish farming process.

After that, the farmer will renovate the pond, clear the bushes and grass, dredge the mud around the pond wall, if there is a crab hole, then fill it up. Repair the banks and surrounding nets to make sure, keep the banks half a meter higher than the water level.

In addition to ponds, we can use garden ditches and fields to raise fish. Need to choose a place with an area of ​​​​100-1000m2, about 1-2m deep. Collect water and dredge and dredge the mud at the bottom, then spread 10kg of lime per 100m2 to clean the fish farm.

In order to increase the nutrition in the field, people should smash the wire of fish medicine spread every 100m2 is 4kg and then dry in the sun for 5-7 days. Fertilize at the rate of 25kg of cow dung, 12kg of chicken manure for 100m2 of land. The next day, people flooded with water about 40cm and when they saw that the ponds and fields were green, they supplied water up to 1m high.

Techniques for selecting giant fish

Choose healthy fish, without pathogens or deformities, you need to choose fry of similar size.

One square meter of raising from 3 to 10 fish depending on conditions, if cultured with white catfish or snapper, it is 1 fish per 1 m2.

2. Techniques for raising and taking care of giant fish

Food

Food for giant fish
Food for giant fish

After raising fingerlings for a month, they are released into ponds and fields. The main food is chopped plants such as water hyacinth, spinach, water spinach. When the fish is larger, it can be omnivorous aquatic plants, vegetables or leftovers in the kitchen.

If you want to grow fish quickly, you should mix starch in the meal, if you only eat vegetables, it will weigh 1kg in 2 to 3 years, and when you add refined food, it only takes 1 year to weigh 1kg already. The giant fish eats vegetables equal to 2%-5% of its weight according to the formula:

Green vegetables 30% and concentrate 70%. In which, 30% is juvenile fish, fresh sea fish, shrimp head, snail intestine and fish meal, 7% is broken, corn and 3% leaf meal available for sale.

10% water spinach leaves and 90% concentrate (50% bran meal, 15% fish meal and 25% oil cake.

Food preparation method: Finely chop the leaves and stems of morning glory and sweet potato. Shredded snail meat, fish, crab. Then cook the plate into porridge and then add the crushed fish, crab and snails and cook with water spinach, chopped sweet potato. Provide additional powdered food, cooked soybean carcasses, and mix. Let the pot cool, then put it into pellets.

When the fish is young, people pay attention to feeding the fish twice a day with the floor. Until the giant catfish is larger, people will divide the area, spread the food so that the big and small fish can eat.

Herd care

When raising to check the development of fish, if you see that the fish is not large enough, you pull the net, divide the fish to reach a separate commercial size, the remaining fish will grow faster when they are equal in weight. Selection of fish every 1.5 months.

Fish can eat chicken and pig manure, so it is necessary to change the water weekly or once a fortnight, remove the leftovers before adding vegetables. Always keep the water level in the pond 1-1.5m high, clean and green in color.

Disease prevention

Always keep the pond clean, if the fish is sick, it must be detected and treated promptly. In case of fungal disease, farmers will use Malachite Green drug at a dose of 0.05g/m3 or copper sulfate 5g/m3 for it. ponds, but now this type has been banned from use. If the fish is infected with the anchor, use Dipterex 0.5-1g/m3.

Fish harvest

When the fish is harvested, we block the ditches into areas to catch fish. We drop the net and gently pull it up or catch the fish with a net, and then put it in a tank of water pumped with oxygen.

3. Breeding giant catfish to spawn

Giant fish spawning
Giant catfish spawning season

Your home needs to have a large glass aquarium in front of the African giant fish to spawn. Where the fish spawn, place a brick.

When released, the fish is still swimming normally, seeing two male and female fish chasing, biting each other, etc., which means they are about to lay eggs.

The female will lay eggs in the holes in the brick and lay many times. By habit, they will always stay around their nest to guard, protect eggs and provide oxygen, etc.

When the eggs have hatched, the fry still cling to the nest, staying in it for 3 to 4 days before swimming out. Because they have not fully developed, they are still young, so they do not know how to eat and live only with nutrients stored in the body. The parents are always there to take care of the baby fish.

The food of the fry is bobo seeds, egg yolks, etc. After a week, they can eat vegetables and small bran.

Giant fish is an easy and profitable farming model with very high productivity, helping farmers to get rich from aquaculture. Hopefully, through this article of sharing fish farming experience, you will be able to do it in the best way.

Good luck!

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