Technical points of stocking of cultured Shrimp in Spring

1. After the pond is thoroughly disinfected, detoxification and detoxification must be sprinkled with detoxification Lvshuibao or the king of protecting water and detoxification, and 4 hours later, the whole pond must be sprinkled with compound spore bacteria or new bacteria (need to be soaked in water for 4 hours in advance). The disinfected animal carcasses and other organic dirt are decomposed and transformed into nutrients for algae growth, which is beneficial to algae fertilizer and water culture. After the selection of sunny morning fertilizer and water, conditional can add 10 centimeters of fresh algae-containing water to introduce algae species, can also use multi-algae sources to supplement algae species, turn on the aerator before fertilizer water to let the water flow, which is conducive to the reproduction and growth of algae. Fertilization: soak for 4 hours with potent algae cream, cola or prophylaxis, and then sprinkle. For ponds where fertilizer and water fail or cannot afford fertilizer for a long time, water protection and detoxification king and black soil essence can be used to purify water after entering the water, and the above fertilizer and water products can be used to add multi-algae source fertilizer and water after 4 hours.

two。 Most farmers of Penaeus vannamei think that the first batch of shrimp fry is the best. in order to seize the first batch of shrimp fry, they ignore the weather conditions, or even release them when the temperature is relatively low, and there is a strong wind and cooling weather within two days after the release, which leads to a sudden drop in air temperature. so that shrimp produce a strong stress reaction, due to the poor physique of shrimp seedlings, it is easy to cause the phenomenon of dead seedlings. Therefore, seedling release should be patient, wait for continuous fine weather to release seedlings, choose sunny morning or evening release of seedlings, use detoxification Lvshuibao or water protection and detoxification king to remove toxins in water before release, sprinkle VC stress spirit and compound calcium treasure to improve the anti-stress ability of seedlings and promote shelling. 3. When selecting shrimp seedlings, it is necessary to understand the qualifications, commercial reputation and technical strength of the breeding enterprises, such as whether the production of parent shrimp and seedlings is standardized, whether they meet the requirements of the state, whether antibiotics are used in the whole process of production or raising seedlings at high temperature, and when purchasing seedlings, whether the enterprise can show the quarantine certificate of the relevant government departments to ensure the health of shrimp seedlings is the first condition for successful breeding. 4. To keep the pond water stable, thinness or excessive fertilizer will cause hypoxia. Choose excellent fertilizer and water products, such as strong algal cream, enzyme calcium fertilizer, probiotics, Feishui Cola, Fei Shui Lishengsheng, polyalgal sources, etc., to cultivate high quality algae to keep the water body fat, alive, tender and cool. When the water is too fat and too dense, the water can be changed properly, the degraded king can be used to permeate the water, and the microecological agents such as compound spore bacteria, new bacteria and pure EM bacteria can be used to maintain the balance of algae phase and bacterial phase in the pond water. Regularly use black soil essence combined with compound spore bacteria, stress bottom health and other substrate improvers to keep the bottom clean and prevent moss, so as to give shrimp a good bottom environment. 5. Reasonable feeding. The feeding time is about 2 hours. Check the feeding condition of prawns when eating to avoid leftovers or loss of food. Health nutrition products such as abundant shrimp high stability C, immune activity source, Hugan Weibao, appetizer glucose and other health nutrition products were regularly added to the feed to improve the feeding ability and disease resistance of shrimp, and improve the intestinal tract. Especially in the liver transformation period of larvae, Hugan Weibao, abundant shrimp high stability C, immune vitality source and so on should be added. 6. Rational use of drugs. When prawns get sick, they should use drugs safely under the guidance of technicians according to the incidence and symptoms, and avoid using irritant drugs or antibiotics as far as possible. It is recommended to sprinkle more herbaceous bacteria, such as heat-clearing and detoxification of traditional Chinese medicine products to prevent, at the same time, pay attention to water diversion to change the bottom, to maintain good water quality and sediment environment.