Methods and techniques of water fish culture

The methods and techniques of aquatic fish culture include breeding place, breeding environment, preparation before stocking, feed feeding and disease prevention.

1, breeding site

Farms can be large or small. But each turtle farm must have an incubator, a young turtle pond, a young turtle pond and a parent turtle pond. The incubation room should be sunny and the temperature should be high. The young turtle pond is used to raise turtles hatched that year. Generally, it is 10-30m2 with a depth of 0.5-0.8m. The young turtle pond is used to raise young turtles in the second and third years, and there is an escape wall with a height of 0.4 meters around it. The turtle pond can be large or small, generally not less than 500 square meters.

2. Breeding environment

Fish ponds should be built in sunny, quiet environment, sheltered from the wind and sunny, and convenient for irrigation and drainage as breeding bases, which are not only convenient for transportation, close to power supply, but also pollution-free near water sources.

3. Preparation before stocking

Thoroughly disinfect the nail fish pond with quicklime before stocking, and often sprinkle a small amount of quicklime water or formalin solution after stocking. When releasing crucian carp fry, it should be raised in different pools according to the size to prevent big turtles from swallowing small turtles.

4. Feed feeding

Turtles are omnivores and have low requirements for feed. Small fish, shrimp, earthworms, snails, pumpkins, wild vegetables, corn, animal offal, carcasses and slaughterhouse leftovers can all be used as feed.

Feed it twice a day, once in the morning and once at noon. The feeding amount of dry bait should be 2-5% of the turtle's weight, and the wet bait should be increased to 15% of the turtle's weight. When the water temperature is between 15-34℃, the soft-shelled turtle swallows actively and grows rapidly, so it is necessary to feed enough bait. The specific feeding amount should be flexibly increased or decreased according to the feeding situation of soft-shelled turtle.

5. Do a good job in disease prevention.

In July and August, turtle diseases were mainly skin rot, perforation, white floor disease, mumps, scabies, etc. Preventive measures should be taken actively.