1. Pay close attention to covering the plastic film to increase the water temperature in the shrimp pond. Do not use old plastic films that have poor lighting, are easily damaged, and have poor insulation.
2. When the pH value of the pool water exceeds 9, 0.4-0.5 grams of tea leaves per cubic meter of water can be used, and the whole pool can be splashed and soaked for 2 consecutive uses. It can also use 2-3 grams of humic acid per cubic meter of water. Spilled. Low-temperature and rainy weather splashed with antidote, such as Lushuibao, to keep the water in the pool fresh and rich in dissolved oxygen. Do not splash lime water.
3, during the cold period, Quanchiposa adequate amount of vitamin C, vitamin A, vitamin E, glucose and other nutrients to ease the shrimp stress; add shrimp in the feed with multi-dimensional, stress king, amino acids and other nutrients, improve shrimp immune resistance force. In low temperature and rainy days, the prawns are concentrated in the shell stage. Each cubic meter of water is filled with 1 g of crustin and the whole pool is splashed with water. The calcium, magnesium, phosphorus, and other nutrients are added after the prawns are crushed to facilitate recovery of the body.
4, during the cloudy period of low temperature, shrimp ponds prone to "bottom algae", this time can not use live bacteria preparations, should be promptly per cubic meter of water with high efficiency water purification treasure 1.2 grams and 1.5 grams of green water treasure Quanchiposa, detoxification first After the algae. When the weather improves, after the water temperature rises, some quick-acting fertilizers and live bacteria preparations are supplemented to promote the growth of new algae.
5. When the nitrite content in the pool water exceeds the standard, resulting in unresponsiveness of the shrimp, when the feeding is reduced, the feeding should be stopped, the oxygen is turned on, the drainage is 30-40 cm, and the Bacillus subtilis and nitrifying bacteria are 1 g per cubic meter of water (before splashing Activated with brown sugar water for 3-4 hours). Spread some oxygen around the pond in the evening. Sprinkle once every 2-3 days.
6. Chlorine dioxide cannot be used to prevent the gas in the shed from diffusing and endangering the safety of shrimp. Shrimp should not be spilled with disinfectant when it is in shell stage, when the water quality is cloudy or the weather is low.
7. Shrimp tanks should not be splashed with complex copper or copper sulfate when they appear blue algae, and should be removed manually.
8, fertilizer and water should be a small number of times, the main cast soybean milk, biological fertilizer and fermented organic fertilizer, etc.; shrimp pond water does not exceed 5 cm each time, in the middle and late shrimp pool water level control in 1.4-1.5 meters, not too deep, so as not to When the light is shining, the bottom water does not get enough heat.
9, shrimp disease should be the main prevention, regularly add Radix, Andrographis, rhubarb powder and hepatoprotective herbs in the feed to prevent the occurrence of shrimp disease.
10. Cold and rainy weather, do not use nets to catch shrimp, so as to avoid the release of harmful substances at the bottom, which will increase the nitrite content and endanger shrimp. In addition, shrimp should be handled carefully to avoid damaging the shrimp.
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