Strengthening spring fish management of early fish is the top priority for the spring work of the soft-shelled turtle. The main five points are:
First, the quality of water 'fishing first to raise water, wide water to raise the big fish This same principle applies to turtle breeding, soft-shelled turtle tends to be dirty, a good water environment is one of the basic conditions for the steady growth of soft-shelled turtle. 1. Change of water and sewage: In the case of open-weather wintering ponds and winter greenhouses, the climate is relatively stable after the beginning of spring. Part of the bottom water is properly replaced and some new water is added to reduce the amount of waste such as harmful bacteria in the culture ponds. The role. 2. Disinfection of water: It is not one of the main ways to spread diseases. Water is sterilized regularly and promptly everywhere is an effective method to control the occurrence of disease. During the spring, the soft-shelled turtle is of weak constitution and milder drugs such as iodine and bromine should be used. 3, water quality regulation: The pathogenic bacteria caused by soft-shelled turtles are mostly pathogenic bacteria, generally not easy to survive in partial alkaline conditions, so regular use of quicklime to adjust the pH of the water, the PH value is controlled between 8 and 8.5, during the spring The amount of lime should not be too large. Regular use of photosynthetic bacteria, EM bacteria and other microbial preparations, on the one hand can effectively purify the water body; In addition, in the new pool of quasi-l prepared to spill biological agents, can well lock and stabilize the water color. The appropriate amount of stocking water hyacinths, Hollow Lai and other aquatic plants, the same effective purification of water. 4. Control of water color: The water color directly reflects the population and state of beneficial algae in the water body. The water color of the soft-shelled turtle pond should maintain the green state and the water body will be stable. 5, fertilizer, water, algae cultivation: In the new pool to be stocked, the water, algae, and algae should be increased to create a suitable environment for the soft-shelled turtle pond, and the soft-shelled turtle can quickly adapt to the environment.
Second, the temperature 'No spring on the third sunny, during the spring is a season of changeable weather, whether it is the precipitation of the open-air pool to raise the water temperature or the warm water level of the shed pool to prevent high temperature and ventilation and the wintering pool of water for sewage All weather changes should be resolved, depending on the specific circumstances, should not be a large row of irrigation. During the grading period during the beginning of spring, it is also necessary to pay attention to the changes in temperature and water temperature, especially if the temperature of the water does not exceed 3 degrees. If the temperature difference is too large, no matter whether it is the original pond or the stocking pond, it will respond and cause a lot of death.
Third, nutrient temperature rises, the turtle's vitality increases, activities are frequent, and physical energy consumption also increases. It is advisable to feed in a timely manner and increase the amount of bait appropriately, adding more energy-supplying substances and vitamins and some microbial preparations to the bait. In the open-air pond, the soft-shelled turtle is fed with fish, snails, and animal livers in time to attract food. When the appetite is high, the amount of formulated feed is increased, and vitamins and microbial preparations are added. Open-air pond turtles should be fed in a timely manner to fish, snails, animal livers, etc. to attract food when the appetite is strong, increase the amount of compound feed, and add multivitamins, microbial agents or antibiotics.
Fourth, disease prevention is too open period, it is a period of frequent occurrence of turtle disease, mainly cold, skin perforation syndrome, fungal disease, hemorrhagic disease, etc., should take the prevention and treatment simultaneously, ecological prevention and drug prevention peers principle. We strongly advocate the use of biological agents in water bodies and feeds, and strive to grow a certain area of ​​aquatic plants in the water and stock a certain number of bonito fishes to purify the water body, and at the same time feed effective Chinese herbs. Not only is it economical and effective, it also meets the trends and requirements of pollution-free farming.
Fifth, cultivating and nurturing relatives is to supply high quality feeds, and omnivorous animals based on animal foods, mainly small fish and shrimps. The feeding amount is about 15% to 20% of the weight of the deafness. In order to keep the food fresh and easy to grasp the feeding situation of the clams, set up a feed stand with a border slightly below the surface of the water at the pool or hang the feed string on the wire and plunge into the water. In order to solve the problem of natural feedstuffs, some basic formulas for artificial feed pelleted feeds have been developed in various parts of the country. The protein content of the main feedstuffs should be more than 40 percent (usually about 100 percent) to facilitate the development of gonads and gonads. spawning. Especially before spawning in the spring, intensive cultivation should be carried out to enhance the body's constitution and increase the spawning rate. Intensive management in the cultivation of intimacy, removal of residues, pay attention to water quality. If sickness or death is found, remove it in time. Strengthen management and strive to obtain soft-shelled turtles.
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