Green shrimp, crab breeding "Six off"

February 08, 2020

First, the water body off: The water body is the growth environment of the green shrimp and river crab. It is required to choose a water body with good water quality and convenient drainage and irrigation. The water level is 1-1.5 meters. Thoroughly clear the pond before stocking to prevent wild fish from entering to increase the survival rate. Fertilizer to raise green shrimp, before the release of shrimp or egg-holding shrimp to apply organic fertilizer to promote plankton breeding, there is a palatability feed; crab hi lean water quality.

Second, the seedlings clearance: put, put enough seedlings is the key to seize high yield. Green shrimp should be placed 1.5 to 6 centimeters per hectare of saplings or 1 kilogram of egg-bearing shrimp; crabs should be sized within 500-800 pieces per kilogram per acre, and it is advisable to raise crab species in the Yangtze River water system.

Third, the feeding off: Green shrimp, crab food is omnivorous partial animal, feed should be a reasonable scientific bait, that is to achieve qualitative, quantitative, timing, positioning. Guarantee the quality of bait and prohibit the use of moldy food. Fresh crabs live activities such as snails, usually put 250 kg live snail per acre.

Fourth, weeds off: aquatic plants are conducive to create a good ecological environment, mainly to regulate water quality, shade and reduce temperature and provide habitat, shell, growth and other environments, planted with submerged bitter grass (grassgrass), wheel black irrigation Algae and other aquatic plants dominate. The coverage of the shrimp ponds should reach 30% or more, and crabs should be about 60%.

V. Prevention against disease: To take active measures of “no disease prevention, disease prevention and early disease management”, the water body should be regularly disinfected and the medicine baits should be taken regularly. For the timely monitoring of the disease, it is necessary to promptly use appropriate medications to treat the disease, isolate the central area of ​​the disease, and cut off the spread of the disease.

Sixth, listing off: will support will sell, in order to obtain higher economic benefits. In the breeding process, we must keep abreast of market conditions and master market dynamics. Green shrimp must adhere to the year-round fishing, capture large and small, increase specifications and production, crabs listed on the price before the Spring Festival.

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