What problems should we pay attention to when releasing seedlings?

The problems that should be paid attention to when releasing seedlings are as follows:

(1) The pond is not completely cleaned, and seedlings cannot be released when the water depth is less than 50 cm.

(2) Physical and chemical factors should be determined before seedling release, and seedlings can only be released if they meet the requirements of seedling release.

(3) It is not suitable to release shrimps with a body length of less than 0.7 cm, and it is not suitable to release shrimps with weak health.

(4) Re-count the number of seedlings before releasing them, and do not release them when the number is inaccurate.

(5) It is best to temporarily raise shrimp seedlings before releasing them to improve the survival rate. Using a net cage with mesh number of 1 ~ 2 mm, shrimp larvae are temporarily cultured in the culture pond for 4 ~ 5 hours, and the temporary culture density of 0.7 cm can reach 200,000 per cubic meter of water. After temporary observation, count again and put it in the pond.

(6) After stocking, 50 ~ 100 shrimps are left in the cage, and the number is counted after 3 ~ 5 days as an estimation parameter of the early survival rate of shrimps.

(7) If the salinity and temperature difference between the shrimp pond and the nursery pond is too large, it should be domesticated gradually, preferably in the nursery pond before leaving the pond.

(8) Bad weather is not suitable for planting seedlings. When the seedlings are released, they should be dumped in the windward direction along the edge of the shrimp pond.