Rotten fish seed breeding and adult fish breeding techniques

The genus Carminacea is a subfamily of the genus Polypodiidae, and most of the genus of the subfamily Aquaticaceae are distributed in North America. There are about 14 genera and nearly 80 species. This species is known so far as the only one species in the fish family in Asia. It has been found in the upper, middle and lower reaches of the Yangtze River.

Breeding: The rouge fish is of mixed feeding, strong disease resistance, wide adaptation range, gentle temperament, pond breeding, single breeding, and polyculture. It's best to feed leeches to keep the water cool.

First, seed cultivation

1. Care of larvae

After the hatching of the artificially propagated Rouge larvae, the dirt on the bottom of the hatching container should be carefully removed every day to prevent the fish from drilling into the soil. Adjust the proper flow so that the fry will not be impacted by strong currents. Oxygen is pumped by the air pump to ensure sufficient dissolved oxygen in the water body. It is also necessary to prevent the early spring cold wave from invading. At a water temperature of 18 to 22°C, larvae, usually 5 days old, can be transferred to the fry cultivation stage.

2, fry cultivation

Fry breeding facilities are small cement tanks or small cages. The stocking density is 2000 to 5000/m2. As long as 3 cm in body length, it is diluted to 100-200 tails per square meter. The feed for the fry can be fed with egg-yolk pulp as an open bait for 1 day, and then fed with rotifers such as rotifers, paramecium, diatoms, and green algae. When the fry grows to 1.5 cm, feed the small clams and copepods. When the body length is 2.5 cm, feed the minced blisters. When the body length is 3 to 3.5 centimeters, feed the fresh water directly. earthworm. When feeding, all live bait should be cleaned, and large-scale feeds should be filtered with a 25-mesh net cloth, and the food should be fed 2 to 3 times a day.

3, fish breeding

When the fry grows to 3 to 5 centimeters, fingerlings are grown. Before the fishes were pooled, clear ponds were sterilized and fertilized to cultivate food organisms in the water. After the fishes are pooled, in addition to feeding on natural food organisms, they should also be fed with leeches, terrestrial gizzards, minced fish paste, and squid feed in turn and fed twice daily. If properly fed, fingerlings can be raised up to 250 to 300 grams by the end of the year.

Second, adult fish breeding

Mainly in the pond. Mainly in the main mode of raising, it can also be raised in other ponds. The area of ​​the main raising pond is 0.2 to 0.3 hectares, and the depth of the pond is 2 to 3 meters. The water source is sufficient and the water quality is fresh. 500 to 600 large-sized fish species of 100 to 200 g per tail per 0.067 hectare are used, and about 100 cockroaches and squid are to be used. For every 0.067 hectare during nesting, 20 to 30 tails are planted.

Feeding fish into feeds is mainly based on compound feeds and can now be used instead of long kisses or catfish feed. Feeding should be qualitative, quantitative, timing, and positioning. When feeding compound feed, it is better to feed the right amount of water fleas once a week. Can also be fed snail meat, small fish shrimp, terrestrial larvae, fly maggots, yellow mealworms and other live bait to reduce feed costs.

Pomfret is not resistant to hypoxia. Daily management should often be filled with new water, keeping the body's transparency at 30 to 5 cm and dissolved oxygen above 3 mm/l. Adult fish breeding 8 to 10 months, generally up to 600 to 750 grams, yields about 400 kg/0.067 hectares.

The main diseases of rouge fish are watery mildew, enteritis, rotten roaches, and print diseases. It is important to take precautions and actively treat them.

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