In a turtle-dominated pond, with appropriate amount of squid, squid, squid, and squid, the quality of the soft-shelled turtle can be very close to that of a wild turtle. The benefit is very significant. Now we introduce its breeding methods as follows:
I. Basic conditions for breeding
1. Pond conditions. Soft-shelled turtle ponds should be selected for convenient transportation, supporting the drainage system, and a quiet pond. The area is 2001-3335 square meters (3-5 acres), the pond bank slope ratio is 1:2, the bottom is flat, the mud is 20-30 centimeters, and the water depth is 1.8-2.5 meters. Adequate water supply, good water quality, no pollution, pH 7-8.5, dissolved oxygen 5 mg/l or more, water quality in line with fishery water standards.
2. Anti-escape facilities. The escape wall is built around the pond. The wall is 40 centimeters high. The top of the wall is 10 centimeters in length and the inner wall is smooth to prevent the turtles from escaping and invading.
3, build a drying platform and bait station. Every 1334-2001 square meters (2-3 acres) is built with cement boards or planks in the pool to make a soft-shelled turtle resting, sun-backing and bait-feeding platform, 15-25 cm above the water surface, and the inclined side extends to 20-30 below the surface of the water. cm.
Second, seed stocking
1. Preparation before stocking. In winter, pool water will be drained for pond clearing, dredging drying ponds, and pool repairs. Before stocking, use 75-150 kilograms of lime slurry per acre to splash the whole pond and disinfect it thoroughly. The clear pond was filled with water for 50 cm after 7 days, and the fermented organic fertilizer was used to grow the pool water.
2, seed stocking. It is generally recommended that stocks of rearing fish be stocked in winter, and they must be stocked before the beginning of spring. Turtle species generally prefer stocking from late March to early April. The stocked turtles should be selected for spawning under natural conditions. They should be of uniform and uniform specifications, free from disease, injury, strong physique, and strong in activity. A weight of 200-250 g is preferred. The size of the carp and carp stocking is 150-300g/tail, and that of the carp and carp is 30-60g/tail. When stocking, use 4% saline solution for bath disinfection. The number of turtle species is 250-300 per acre, 200-250 alfalfa and cod (3:1), 150-200 alfalfa and cod.
Third, feeding and management
1, bait feed. Soft-shelled turtles are omnivorous animals, mainly animal protein, supplemented by plant proteins. Fresh live bait mainly includes small trash fish, animal viscera, and scraps. Green fodder mainly includes fresh water grass and fruits, vegetables, stems and leaves, etc. It can also be fed after bran, corn flour, and bean dregs are mixed and processed.
When the water temperature rises to about 18°C, the soft-shelled turtle begins to ingest food. At this time, it feeds a small amount of bait and domesticates it, allowing the turtle to start eating earlier, thereby prolonging the growth period. The feeding amount is generally calculated based on the weight of the soft-shelled turtle. The daily feeding amount of the fresh animal bait is 10-20% of the total weight of the soft-shelled turtle, the daily feeding amount of the formulated feed is 5% of the total weight, and the total amount of the daily feeding is 40 in the morning. -45% feeding, feeding in the afternoon 55-60% of the total feeding amount. However, it should be based on the weather, water temperature and the growth of soft-shelled turtles. Each feeding amount should be 2-3 hours. According to many years of practical experience, the annual amount of turtles is 3-4 months from April to March, with 5-8% per month in May, 11-13% in June, 24-26% in July and 30-32 in August. %, 24-26% in September, 2-3% in October.
Feeding amount of fish to be stocked. Rafts and squid stocked in ponds can play a role in cleaning and regulating water quality; stocking squid and squid can loosen sediments, clean up residual baits, and make full use of lost turtle feed. Therefore, as long as the amount of bait on the basis of 10% increase in bait can meet the nutritional needs of fish.
Feeding baits should adhere to the "four settings" and "four look" feeding methods. Feeding generally choose to set 2-3 fixed food sites per acre on both sides of pond ventilation to the sun, which is conducive to observation of the growth and activity of turtles and fish, adjust the amount of feeding; feeding twice a day, 8 am 9 o'clock, 5 o'clock in the afternoon; feeds are required to be fresh and palatable after feeding.
2, water quality management. In the initial stage of restocking, the water level is maintained at 80-100 cm. With the increase of water temperature and the individual's growth, the water level is gradually increased. In the spring and autumn, new water is added every half month, and in the summer, new water is added once a week, each time filling 20-25 cm. , increase the water level in summer and early autumn high season. When the high temperature season and the water quality are too strong, the water must be changed in time, and the amount of water changed every time does not exceed 20%. Regularly sprinkle 15-20 grams of quicklime or 2 grams of bleaching powder per cubic meter of water to ensure that the dissolved oxygen in the water is above 4 mg/l, the pH is between 7-8.5, and the ammonia is less than 5 mg/l. Transparency Mastery 30-40 cm in spring and autumn and 40-50 cm in summer. Every 3335-5336 square meters (5-8 mu) water surface is equipped with an aerator, which is turned on at a proper time to increase the dissolved oxygen in the water.
III. Disease Prevention
(1) Disinfection of food. Animal foods can be washed with water; plant foods such as water grass, duckweed, etc., are soaked in a bleaching solution with a concentration of 20 g/m3 of water for 20 minutes and then fed.
(2) Spill out the whole pool regularly. Use 1 g bleaching powder or 15-20 g quicklime per cubic metre of water body, and sprinkling the whole water once to prevent bacterial diseases; use 0.7 gram copper sulfate and ferrous sulfate mixture per cubic meter of water per month (5: 2) Quanchiposa 1 time to prevent parasite diseases.
4, daily management. Adhere to the morning and evening two times to inspect the ponds, check the escape prevention facilities and the inlets and outlets, and timely correct the loopholes. Observe the water quality, and if any abnormal changes, take timely adjustment and improvement measures; observe the activities, feeding, and growth of the soft-shelled turtle and fish. Adjust the amount of feeding; do a good job of cleaning and sanitizing, remove the residue and bait in the pool in time to ensure that the water quality is fresh, and adjust the height of the drying back and bait-feeding platform in time according to the change of the water level.
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