Breeding management

1. Strictly control the temperature.

In order to prevent diseases caused by shrimp stress reaction due to temperature changes, the anti-stress ability of shrimp can be improved by feeding vitamin C and other immune enhancers. Avoid drastic changes in water quality by increasing oxygen and regulating water quality. Patrol the pond once a day in the morning, in the middle and at night, check the feeding table, and observe the water quality change, shrimp activity, feeding and shrimp disease.

2. Water quality control.

Ensure sufficient dissolved oxygen in water body, not less than 5mg/L. Regularly apply micro-ecological agents to regulate water quality to prevent excessive levels of toxic and harmful substances such as ammonia nitrogen, nitrite and hydrogen sulfide. The quality of aquaculture water is controlled at pH 7.5~8.5, ammonia nitrogen is less than 0.5mg/L, hydrogen sulfide is less than 0.1mg/L, transparency is 30~40cm, and water color is fresh. Strengthen the monitoring of aquaculture water quality, and detect the dissolved oxygen, ammonia nitrogen, nitrite nitrogen, pH and other physical and chemical indicators of water at least once a day. The Roots blower is used to match the nano-oxygen pipe at the bottom of the pool to improve the oxygen content of the water body. The cement pond and greenhouse pond with intermediate sewage discharge shall discharge sewage and supplement new water every day to reduce the occurrence of diseases.

3. Accurate feeding.

Select the feed with appropriate protein content to meet the nutritional requirements of shrimp growth. Timely adjust the daily feed amount according to the feeding conditions, climatic conditions, water quality, breeding stage and health status. Control the feed amount in cloudy days, molting, disease and other conditions, and feed 4-6 meals a day after seeding. The growth of Penaeus vannamei was measured every 10-15 days.

4. Use of inputs.

During the breeding process, pay attention to the scientific use of feed, fertilizer, water transfer, bottom modification, disinfection, algae killing, oxygen enrichment, pond cleaning and other products, and ensure that the source, main ingredients and content of the inputs used as well as adverse reactions and other information are clear. Use more probiotics. Do not use prohibited drugs and "three no" products, fake and inferior veterinary drugs, human drugs, so-called "non drugs", "animal protection products" and other drugs not approved by the state.

5. Disease prevention and control.

Focus on diseases such as shrimp white spot syndrome, shrimp enterocystis hepatica parasitism, acute hepatopancreas necrosis syndrome, iridovirus infection, infectious subcutaneous and hematopoietic tissue necrosis virus infection, etc., regularly observe the feeding and activity of shrimp, check and analyze the causes of sick shrimp and dead shrimp, and take corresponding measures in time. The prevention and control of shrimp diseases can be achieved by putting healthy seedlings, controlling pathogens, regulating water quality and improving the immunity of shrimp.

6. Tailwater discharge. The tail water shall be discharged in accordance with relevant national and local requirements.

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