Grass shrimp need to be raised in water to ensure appropriate oxygen content. The specific breeding methods are as follows:

1. Select a pond

You should choose a pond with flat terrain. , build a pool in an area with less silt, sufficient water sources, good water quality, no pollution, and convenient drainage. It is suitable to have an area of ??5 to 8 acres with a sandy bottom and a water depth of 2m. Each pond is equipped with 2 to 3 2.2kW aerators. Old ponds need to be cleared of sludge and weeds or plowed to expose the bottom to the sun.

2. Pond clearing and disinfection

Fill the pond with 15 to 20cm of water 20 days before seedlings are released, and use a pond clearing agent to spray the entire pond to kill harmful microorganisms. For some newly excavated ponds and some aging ponds with poor water exchange capacity, in order to prevent the explosive reproduction of harmful algae in the middle and later stages of breeding, attention should be paid to the use of algaecide agents in advance, such as Algaecide King, Caocaojing and other chemical killing ponds. Harmful algae on the bottom. 3. Purify the incoming water and adjust the salinity

The shrimp pond receives water after cleaning and disinfection. When receiving water, it needs to be filtered through a 60-80 mesh mesh to prevent harmful organisms from entering. After 80-100cm of water has entered, the water body should be disinfected, and powerful bacterial toxins and other drugs should be used to kill water viruses. At the same time, use a sprayer to disinfect the pool with drugs, and increase the concentration of the drug appropriately. The salinity of the pond should be consistent with the desalination salinity of the shrimp seedlings in the nursery.

4. Set up an aerator

The impeller-type aerator has the best effect and should be installed in the deep water of the pool. Within one month of planting seedlings, turn on the machine once a day at noon and before dawn, for 2 to 3 hours each time. After a month, I turned it on at noon and before dawn every day, for 3 hours at noon and about 10 hours before dawn. Increase the boot time and frequency on rainy days. In the later stage of breeding, the machine should be turned on for no less than 20 hours a day.

5. Measures to change water color

① Increase the drainage volume and add disinfected water.

②Use shrimp or seawater auxin to forcefully propagate beneficial algae and change the water color.

③Use Shrimp Toxin or Algae Killer to kill algae and disinfect, and wait until the efficacy period has passed.

④ Use the probiotic drug "Fish and Shrimp Savior" to improve the bottom of the pond.

6. Feeding

1. Feeding amount: Accurate and reasonable feeding according to the physiological needs of the shrimp at each growth stage and the living conditions at that time. The daily feeding amount (compound feed) of grass shrimp is generally calculated based on the weight of each tail. 1g body weight, the feeding amount is 16% of body weight, 2g body weight is 14%, 3g body weight is 12%, 5g body weight is 10%, 8g body weight is 8%, 15~20g body weight is 6%~5%, 20~30g The body weight is 5%, and the body weight above 30g is 4%.

2. Feeding Principles According to the living habits of grass shrimps that lie dormant during the day and emerge at night, the following principles should be mastered for feeding

① Feeding should be done more often and in smaller amounts every day, and the feeding should be spread Evenly.

② Feed more at night and less during the day. Feeding amount at night accounts for 65% of the total daily feeding amount, and feeding amount during the day accounts for 35%.

③ When the weather is bad, invest less and when the weather is good, invest more.

④ When the water temperature is higher than 34℃ and lower than 20℃, use less or no water. Add more water when the water temperature is 27 to 31°C.

⑤ If the water quality is poor, add less; if the water quality is good, add more.

⑥ When using medicine, add less or no medicine. If the feed deteriorates, it cannot be added.

⑦ Do not invest in strong windy weather, and invest less when shrimps are molting in large quantities.

⑧No feeding from 10:00 to 16:00 every day during high temperature season.

⑨ The amount of feed should be increased by 20% on the first day after molting, and then feed as normal.

⑩ Do not invest when there are heavy storms, do not invest when the water quality deteriorates, and do not invest when shrimps float.