How to raise soft-shelled turtle fry

The soft-shelled turtle is rich in nutritional value and sells very well in the market. Many farmers raise soft-shelled turtles. So how to raise soft-shelled turtle fry? Let's take a look at it next.

First, put in healthy soft-shelled turtle seedlings

The soft-shelled turtle seedlings with strong disease resistance, less disease and strong adaptability were selected. Healthy seedlings are characterized by fat, broad body, smooth body surface, no disability and strong vitality. Seedlings should be purchased nearby so that they can easily adapt to local farming.

Second, the growth environment

The water color should be cultivated before stocking, the water should be changed and discharged regularly during the breeding process, and the water should be fed on the water to prevent the residual bait from polluting the water. Put a certain area of water hyacinth and a certain number of flowers and silver carp in the pond, and sprinkle photosynthetic bacteria preparation regularly. There should be a moderate silt layer at the bottom of the pond, usually 10 ∼ 20 cm, and a layer of fine mud should also be prepared at the bottom of the new pond. To determine a reasonable stocking density, high density is not equal to high yield. The higher the culture density, the greater the amount of residual bait and feces, the higher the degree of environmental pollution, and the water quality is difficult to control. High density will increase the probability of scratches and bites between soft-shelled turtles, and soft-shelled turtles are more likely to get sick. Outdoor pond culture, generally 2 ∼ 3 / square meter can be. In addition, the turtle culture area should be isolated from the outside world as far as possible to prevent interference from unrelated personnel and animals, so as to create a quiet environment.

III. Feed

Soft-shelled turtle is a carnivorous omnivorous animal with mixed feeding habits. In the case of artificial intensive culture, in order to achieve the best effect on the growth, survival rate and commodity quality of soft-shelled turtle, high-quality compound feed must be selected. long-term addition of a certain proportion of fresh and pollution-free fresh bait (such as fish, snails, liver, eggs, vegetables) mixed with formula feed, in order to regulate and improve the visceral function of soft-shelled turtle. At present, the price of soft-shelled turtle is falling, and some farmers use low-grade formula feed in order to reduce costs, which outweighs the gain. In some places, the high incidence of "white floor" disease of soft-shelled turtle has something to do with little or no fresh material for a long time. Of course, this is also related to poor water quality regulation and inadequate preventive measures.

IV. Scientific management

1. The placement and cleaning of the bait table has the habit of moving along the edge of the pond, so the bait table had better be placed on the edge of the pond around the culture pond, and 30 ∼ 45 degrees with the water surface, which is helpful for the turtle to find food and avoid interference. Clean the bait table with a sterilized brush before each feeding. Disinfection drugs generally use drugs with small irritation and convenient preparation, such as potassium permanganate, permethrin and so on. The bait table and its surroundings were disinfected with the above drugs once every 3 days. Disinfectants should be used alternately.

two。 The production of bait and the addition of fresh food is generally 10% ∼ 40%. When using fresh materials, they must be disinfected, cleaned and used now to avoid corruption and deterioration. When feeding, it should be in the form of water feeding, and the bait should be 2 ∼ 3 cm above the water surface. The soft-shelled turtle is timid, so the interference to it should be minimized when feeding. In some places, the bait table is built in the pool, so it is not advisable to take manual rowing or artificial launching. The feeding amount should be 1 ∼ 1.5 hours, and the remaining bait should be collected in time for other use. The feeding time in the high temperature season should be finished before sunrise and start feeding at sunset, when there is less interference, the bait is not easy to deteriorate, and the feeding is fast and good.

3. In order to regulate the water quality, the aquaculture water should be changed and discharged regularly, and the amount of water should not exceed 1 × 3 each time. If there are conditions, the effect of culture with micro-flow water will be better. In the process of breeding, regular use of chlorine dioxide preparation 0.5 ∼ 1 microg, bleach 2 ∼ 3 microg, strong chlorine 1 ∼ 2 microg, quicklime 15 ∼ 40 microg whole pool sprinkling disinfection, 2 ∼ 3 days after spraying about 5 micrograms of photosynthetic bacteria preparation, can play the role of water transfer, 1 ∼ twice a month. At the same time, stocking silver carp can also play a better role in water transfer (bighead carp 60 ∼ / mu, silver carp 30 ∼ / mu).

4. Planting green on the water surface, setting up a sun back platform around a 1.5 meter long and wide frame about 1 meter away from the bait table in the pond, planting water hyacinth, water hyacinth root developed, can absorb harmful substances in the water and play the role of water diversion, but also conducive to the soft-shelled turtle hidden, sun back, enjoy the cool and so on. The culture ponds with less sloping land should set up a sun-drying back table in the pond.

5. Patrol the pond regularly to remove the sick and dead soft-shelled turtle in time. The purpose of pond patrol is to keep abreast of turtle food intake, growth activities, diseases, pond water quality, facilities and so on. The dead soft-shelled turtle in the pond should be fished out and buried or incinerated in time, and the diseased soft-shelled turtle should also be isolated and treated in time. Tools should be dedicated and disinfected regularly. Strictly prevent the mixed use of tools in the disease area and the healthy area, so as to avoid cross-infection of the disease.

Soft-shelled turtle culture is relatively simple, as long as according to the market situation, choose a suitable species of soft-shelled turtle, the market sales will not be too bad.