Five measures to increase aging shrimp pond production
2019-06-11 10:03:40
1. Improve the breeding conditions The improvement of pond culture conditions is the premise of raising good shrimps. This is mainly started from the aspects of pond renovation and supporting oxygenation. Aged ponds and silt deposits breed a large number of pathogens. Only through thorough desilting, deepening, and sedimentation can effectively prevent diseases and reduce the incidence of epidemic diseases. In general remediation, the pool bottom is washed repeatedly with a high-pressure water gun, and the mud at the bottom of the pond is completely sucked and drained out of the pool with a suction mud pump. The hard soil is then removed to dig deep, and finally 75 kg of quicklime or zeolite powder is used per acre. The pool is evenly spilled, which can greatly reduce the pathogens and oxygen consumption factors in the pool, improve the culture environment, and increase the water level and the water body's stocking capacity. In addition, during the shrimp farming process, the lack of dissolved oxygen not only affects the feeding and growth of the shrimp, but also induces the occurrence of diseases that directly or indirectly cause the death of the shrimp. Therefore, oxygenation is an important measure for high yield and stable production. Sufficient dissolved oxygen is maintained throughout the breeding process, and in addition to meeting shrimp growth needs, it can also play a role in improving water quality. It is also advisable for the farm to prepare some oxygenates for emergency use.
2. After adopting the semi-intensive culture mode, the old pool should be cleaned up. It is advisable to adopt a semi-intensive culture method and rational stocking. The 10,000 to 15,000 shrimp seedlings per acre can be used. This kind of technical difficulty is relatively low and easy to manage. If the density is too high, although high yields will also be obtained, the overall shrimp growth is slow, the specifications are small, and the cultivation is difficult.
3. Semi-enclosed water control At present, cross-contamination between sea area pollution and aquaculture ponds is serious. Water sources and water systems are the main channels for the introduction and spread of pathogens. Therefore, the implementation of semi-enclosed culture can reduce the risk of production. Some ponds (accounting for about 20%~30% of the total aquaculture area) can be used as a reservoir, and the influent water can only be pumped into the culture pond after being disinfected in the reservoir. No water can be changed in the entire culture process, and a small amount can be used. Appropriate addition of water is mainly used to make up for leakage and evaporation of pool water, thereby reducing the transmission of pathogenic sources.
4. The use of microbial technology to create a good water environment due to a small amount of water, the long-term accumulation of residual baits and feces in the breeding process, resulting in deterioration of the water environment. It is possible to decompose excessive organic pollutants, ammonia nitrogen, nitrites, hydrogen sulfide, and other harmful substances in the water by regularly launching microbial preparations to cultivate beneficial microorganisms to form dominant bacteria, and to inhibit the growth of harmful algae and pathogenic bacteria, and to create good Water environment.
5. Disease prevention and control technology Under normal circumstances, in addition to regularly running microbial preparations and oral administration of vitamin C, dehulling hormone, norfloxacin, allicin, red body eliminates and other drugs and nutrients, there is no need for water disinfection. However, when water quality deteriorates or shrimp in the surrounding pond begins to become ill, disinfection of the water body must be performed. In order to avoid stress response to the shrimp body, active iodine and hydantoin disinfectants that are not highly irritating to the shrimp body can be used for the entire process. Pool spilled.
2. After adopting the semi-intensive culture mode, the old pool should be cleaned up. It is advisable to adopt a semi-intensive culture method and rational stocking. The 10,000 to 15,000 shrimp seedlings per acre can be used. This kind of technical difficulty is relatively low and easy to manage. If the density is too high, although high yields will also be obtained, the overall shrimp growth is slow, the specifications are small, and the cultivation is difficult.
3. Semi-enclosed water control At present, cross-contamination between sea area pollution and aquaculture ponds is serious. Water sources and water systems are the main channels for the introduction and spread of pathogens. Therefore, the implementation of semi-enclosed culture can reduce the risk of production. Some ponds (accounting for about 20%~30% of the total aquaculture area) can be used as a reservoir, and the influent water can only be pumped into the culture pond after being disinfected in the reservoir. No water can be changed in the entire culture process, and a small amount can be used. Appropriate addition of water is mainly used to make up for leakage and evaporation of pool water, thereby reducing the transmission of pathogenic sources.
4. The use of microbial technology to create a good water environment due to a small amount of water, the long-term accumulation of residual baits and feces in the breeding process, resulting in deterioration of the water environment. It is possible to decompose excessive organic pollutants, ammonia nitrogen, nitrites, hydrogen sulfide, and other harmful substances in the water by regularly launching microbial preparations to cultivate beneficial microorganisms to form dominant bacteria, and to inhibit the growth of harmful algae and pathogenic bacteria, and to create good Water environment.
5. Disease prevention and control technology Under normal circumstances, in addition to regularly running microbial preparations and oral administration of vitamin C, dehulling hormone, norfloxacin, allicin, red body eliminates and other drugs and nutrients, there is no need for water disinfection. However, when water quality deteriorates or shrimp in the surrounding pond begins to become ill, disinfection of the water body must be performed. In order to avoid stress response to the shrimp body, active iodine and hydantoin disinfectants that are not highly irritating to the shrimp body can be used for the entire process. Pool spilled.
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