Culture techniques of imitating wild soft-shelled turtle

Soft-shelled turtle is an egg-laying amphibian reptile, also known as tuanyu, water fish, turtle, etc., for the turtle order Trionychiidae soft-shell aquatic turtle collectively, China's existing mainly Chinese soft-shelled turtle, Shanrui soft-shelled turtle, turtle, among which Chinese soft-shelled turtle is the most common, not only is a delicious food on the table, but also can be used as a traditional Chinese medicine material, breeding value is very high, let's take a look at the imitation wild turtle breeding technology!

breeding conditions

1. Pond conditions: the pond area is generally about 5 mu, the slope ratio of the pond is 1:2, the bottom of the pond is flat, the silt thickness is about 25 cm, and the water depth is 1.8~2.5 meters.

2, water requirements: pond water should be sufficient, water quality should be good, pollution-free, in line with fish water standards, pH 7~8.5, dissolved oxygen 5 mg/liter or more.

3. Escape prevention facilities: an escape prevention wall shall be built around the pond. The wall height is 40 cm, the top of the wall is 10 cm inward, and the inner wall is smooth to prevent turtles from escaping and enemies from invading.

4. Set up sundeck: every 200 square meters of pond, set up a bait platform for turtle rest and sunning in the pond with cement board or wooden board. The platform is 15~25 cm higher than the water surface, and the inclined side extends to 20~30 cm below the water surface.

seedling stocking

1. Pond cleaning and disinfection: before turtle stocking, splash 75~150 kg quicklime slurry into the whole pool every mu to thoroughly clean and disinfect the pond. After 7 days of pond cleaning and disinfection, 50 cm of water was injected and fermented organic fertilizer was applied to fertilize the pond water.

2, stocking time: turtle seedlings are generally stocked in late March to early April. It is better to stock fish species in winter, and at the latest to end stocking before the beginning of spring.

3, seedling selection: soft-shelled turtle seedlings to choose in natural conditions spawning reproduction of individuals, requirements neat, uniform, disease-free injury, physical fitness, strong activity ability, each weight of 200~250 grams is better.

4. Species specifications: silver carp and bighead carp stocking specifications are about 150~300 grams per tail, carp and crucian carp are about 30~60 grams, and 4% saline solution is used for immersion disinfection during stocking.

5. stocking density: the stocking quantity of soft-shelled turtle seedlings is about 250~300 per mu, silver carp and bighead carp are about 200~250 per mu, carp and crucian carp are about 150~200 per mu.

feeding management

1, bait production: turtle feed to animal protein-based, supplemented by plant protein. Fresh bait includes small miscellaneous fish, animal viscera and leftovers, green feed includes fresh aquatic plants, melons and fruits, vegetable stems and leaves, wheat bran, corn flour, bean dregs, etc. can also be mixed and processed before feeding.

2, bait feeding: soft-shelled turtle in the water temperature rose to about 18℃ when feeding, then feed a small amount of bait domestication, so that soft-shelled turtle early start eating. The daily feeding amount of fresh animal bait is 10~20% of the total weight of soft-shelled turtle, and the daily feeding amount of compound feed is 5% of the total weight.

3, feeding method: turtle bait feeding adhere to the "four fixed four look", feeding is generally selected in the pond ventilation on both sides of the fixed food field, so that it is conducive to observing the feeding, growth and activities of turtles and fish, easy to adjust the amount of feeding.

4, water level management: soft-shelled turtle stocking early to maintain the water level of 80~100 cm, with the increase of water temperature and individual growth gradually increased water level. New water should be added once every half month in spring and autumn, once a week in summer, and the water level should be increased in summer and early autumn high temperature season.

5, water quality management: regularly sprinkle 15~20 grams of quicklime or 2 grams of bleaching powder per cubic meter, to ensure that the dissolved oxygen in the water is above 4 mg/L, pH value is between 7~8.5, ammonia nitrogen does not exceed 5 mg/L, if necessary, configure the aerator.

6. Daily management: patrol the pond twice a day in the morning and evening, observe the activities, feeding and growth of turtles and fish, and adjust the feeding quantity in time. Remove the residue and bait in the pond in time to ensure the fresh water quality.

Disease Control and Prevention

1, water mold: naked eye can see turtle limbs, neck, tail and other places appear water mold, slow growth. After the onset of available fish Corning or with 4/10,000 baking soda and 4/10,000 salt mixture poured wine pool, the effect is very good.

2. Neck swelling disease: The turtle neck is obviously swollen, □ nosebleed, and the abdominal nail is anaemic. When the disease can be used "rich chlorine" disinfection pool water, and then use "turtle health" treatment.

3, red neck disease: regularly disinfected with quicklime water, keep the water sanitary, add 0.5‰ of "turtle health" in the feed. The soft-shelled turtle of initial stage disease every kilogram can inject penicillin, streptomycin 200 thousand international unit to be in soft-shelled turtle abdominal cavity, 1~2 times can.

4, enteritis disease: sick turtle excrement has peculiar smell, poor digestion, slow action. 1% garlic juice and onion can be added to feed for prevention and control, and every 7 days is a course of treatment.

5. Bleeding disease: blood spots appear on turtle abdominal armor, bleeding occurs in intestinal tract and respiratory organs, and pathological changes also occur in kidney and liver. Prevention and cure method is to isolate disease soft-shelled turtle quickly, with "soft-shelled turtle health", sulfa or antibiotic treatment.

6. Skin rot disease: In addition to disinfecting all the pool water with "chlorine-rich" and "turtle health", the disease A is quickly isolated and washed with 100 microliters of sulfa drug solution for 2 to 5 minutes every day, twice a day, 7 days for a course of treatment, which can generally be cured.