Prevention and treatment of soft-shelled turtle mumps
In the process of raising soft-shelled turtles, if the water quality is not good and disinfection is not strict, it is very easy to make soft-shelled turtles suffer from parotitis. Once the disease occurs, it will cause a large number of deaths. The disease is easy to occur in young soft-shelled turtles, if not handled properly, it can lead to the destruction of the whole army, so it is necessary to prevent and cure it seriously. In this paper, the prevention and treatment of branchitis of soft-shelled turtle are introduced.
First, the pathogenic soft-shelled turtle is caused by virus and secondary bacterial infection.
Second, the activity of the diseased soft-shelled turtle is weakened, often lying on the edge of the pool or on the eating table, the neck is swollen and can not stretch freely, but the epidermis is not red, the whole body is edema, and the abdominal nail is pale and bloodless. Dissection showed that the gills were red and eroded, which was the key symptom of the disease. the intestinal tract of the diseased soft-shelled turtle was full of purple-black blood stasis, the organs were pale and bloodless, the liver was yellowish, and there was stagnant water in the abdominal cavity.
Third, prevention and control 1. Prevention (1) the water in the turtle pond should be changed frequently to keep the water quality good. (2) the medicine can be sprinkled every 10 ~ 15 days to prevent the disease. Sprinkle quicklime in the whole pool, 30g ~ 50g per cubic meter of water; or sprinkle chlorine dioxide in the whole pool, 1g ~ 2g per cubic meter of water; or sprinkle "strong chlorine" in the whole pool, 0.5g ~ 1g per cubic meter of water; or sprinkle furazolidone in the whole pool, 5g per cubic meter of water, once a day, twice a day. The above four disease prevention and disinfection methods should be used alternately in a turtle pond to avoid drug resistance of bacteria. (3) "soft-shelled turtle Fangdi Ling" (a traditional Chinese medicine preparation to improve immunity) can be fed properly. two。 Treatment (1) sprinkle PV iodine in the whole pool, 1 g ~ 2 g per cubic meter of water, once a day for more than 3 days. Or sprinkle chlorine dioxide in the whole pool, 2 grams per cubic meter of water, once a day for 3 days. At the same time, strengthen the change of water, improve the water quality, change the pool water every day. (2) 0.2 grams of chloramphenicol per kilogram of soft-shelled turtle per day, or 3 grams of bait per kilogram of fish. At the same time, feed the traditional Chinese medicine "Jian Gill Ling", mix it with 5% of the feed and feed it for 7 days.
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Mixed culture technology of turtle crab and shrimp fish
1, pond conditions: pond area of 3.5 mu, flat bottom, silt thickness of about 15 cm, water depth of 1.5 meters. The pond is surrounded by a 40 cm wide glass fence and equipped with a 1.5 kW waterwheel aerator. 2, clear pond fertilizer water: each mu with 75 kg of quicklime dry pond, insolation for 5 days. One week before seedling emergence, water depth of 80 cm, fertilizer water treasure, EM original dew to improve water quality, make water transparency in about 30 cm, water color is brown or yellow green. 3. Seed stocking: total body length 0.7-0.8 on May 20
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What should be paid attention to in the continuous cultivation of shrimp and rice?
At present, it is the prime time to plant shrimp, and farmers should pay attention to the following points when putting in shrimp: first, to do a good job in the basic transformation of rice fields is mainly to open ditches, strengthen dikes, build a good drainage system, and set up anti-escape facilities. Second, to do a good job of ditch disinfection, it is best to sprinkle with quicklime, with a dosage of 100 jin per mu, and plant shrimp a week later. Third, select the individuals who are mature, healthy and with complete appendages and put them at 3:1 according to the ratio of male to female. Planting shrimp per mu
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