Physiological habits

Temperature: wide temperature. It can survive in the water area with a water temperature of 6~40 ° C, the growth water temperature is 15~38 ° C, and the optimal growth water temperature is 22~35 ° C. The endurance limit for high temperature is 43.5 ° C (gradual range), and the adaptability to low temperature is poor. The water temperature is lower than 18 ° C, and their feeding activities are affected. When the temperature is below 9 ° C, they lie on their side at the bottom.

Salinity: It can grow in the water area with a salinity of 0.5~35 ‰. The allowable salinity range of 2~7cm young shrimp is 2~78 ‰, and it can live in seawater, brackish fresh water and fresh water.

Water quality: fresh water is required.

Dissolved oxygen: Dissolved oxygen is more than 5mg/L, and the minimum acceptable dissolved oxygen is 1.2mg/L. It can be transported for a long time without water.

PH value: adaptive pH is 7.0~8.5

Habits: Under the breeding conditions, the pond bottom is generally quiet during the day, and activities are frequent after dusk. It belongs to the bottom interest category.

Design according to physiological habits

Try to increase the bottom area of the shrimp pond. The water level should not be too high. 50CM-70CM is enough

Salinity of water body. If seawater or salt water is not convenient to obtain, the seedlings need to be desalinated. One seventh of the seawater is discharged every day, and one seventh of the fresh water is 25 degrees. After ten days, the salinity is about 5 degrees

Temperature. If the annual production can consider the greenhouse, the northern region can consider the production in the residential area with heating, and the breeding basin is used for breeding. At the same time, the water and electricity are very cheap for civil use, which is also very convenient for sales. However, pay attention to the bearing of the residential area, and do not collapse or fracture the building. It is not considered that annual production can be carried out outdoors.

4. Light. In order to increase yield, artificial shading can be used to increase active feeding time.

5. Shrimp disease. The disease of aquatic products is mainly prevention and secondary treatment. There is no cure for shrimps, because they get sick too quickly. Shrimp disease is mainly caused by deterioration of water quality except for seedlings. In addition to supplying oxygen to the water body, high-frequency siphoning is mainly used to purify the water. The content of ammonia nitrogen and sub salt is basically zero, and the water body is transparent and clear. In terms of aquaculture, three technologies and seven management. Siphon maintenance is the most important thing. If the siphon fails, South America White will be clean in half a day. Mainly observe whether the water pump operates normally, whether the standby power supply is stable, the water pump pipeline must be cleaned once every two months, and the water pump shall be maintained once a week.

One leveling of the earthen pond is equivalent to 1kg of circulating water, which can be easily reached to 15kg

There is a problem of shrimp shell draining in circulating water culture South America White. The eddy current bottom drain mode can be used. A single nitrification module can be used in the shrimp seedling stage. As the shrimp seedling grows up, a second nitrification module will be opened, and a third one will be opened in the prawn stage. This can ensure that the water quality will not harm the shrimp seedling and will not be sucked away by the eddy current. If the shrimp shell cannot be discharged without the water quality problem, One tee joint and one drain outlet can be added to the drain pipe to open it regularly when it is normally closed, and the drain pipe can be made of 50MM PVC pipe.

Dissolved oxygen: Simple mechanical oxygen explosion can be used, or water pump can be used to pump water and drop water to explode oxygen, but a cover is required for the feed pump to cushion the pressure and prevent shrimp from being sucked by the pump.

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