Crab shrimp breeding and management technology
1, polyculture varieties should be appropriate. Crab pool mixed green shrimp, Macrobrachium rosenbergii, knife amount of new shrimp better, best mixed green shrimp. It is not appropriate to mix Krill shrimp and Australian red snapper.
2, stocking large-scale shrimp species. Crab ponds are mixed with fresh shrimps, and they should be stocked with young shrimps that have not reached the market specifications in the autumn of last year. This kind of shrimp is sexually mature from August to September of that year and begins to spawn. In this way, although some shrimps are eaten by crabs, they can still maintain a certain density in the crabs. The size of the shrimp is required to be 2.5 cm or more. This type of shrimp seedling has a strong ability to shoot off the harm and has a high survival rate. Generally, 1-1.5 million tails are stocked per acre.
3, make up the powder feed. The pool of mixed shrimps is normally fed by feeding crabs. During the growing season, some powder feeds, such as bran and vegetable cake powder, are properly fed to supplement the feed of the shrimp, promote the growth of the shrimp and increase the market size. When feeding, first feed the crabs, then feed the shrimps. At about 8 o'clock in the evening, feed the fodder 40 to 60 cm offshore.
4. Strengthen water quality management. Green shrimp require higher water quality, and the growing season generally requires 3-4 days for water, so as to ensure that the water body has higher dissolved oxygen. Found that shrimp hypoxia, it is necessary to change the water in time, and increase the amount of water.
5, timely fishing. The fry of the young shrimp was reared last year and it became mature and began to die in August. Therefore, it is necessary to arrest in a timely manner and accomplish catching up.
China Antibacterial Blend Suppliers
Here you can find the related products in Antibacterial Blend, we are professional manufacturer of Antibacterial blend. We focused on international export product development, production and sales. We have improved quality control processes of Antibacterial Blend to ensure each export qualified product.
If you want to know more about the products in Antibacterial Blend, please click the Product details to view parameters, models, pictures, prices and Other information about Antibacterial Blend.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Antibacterial Blend!
Salicylic Acid,BHA,O-hydroxybenzoic acid,Allantoin
Xi'an Gawen Biotechnology Co., Ltd , https://www.ahualyn-bio.com