Method and system for high-density culture of clean rotifers

Abstract

The invention provides a method and a system for high-density culture of clean rotifers. The rotifer culture system comprises a conical culture barrel, a nano air stone, a water inlet pipe, vertical pipes, a water pump and a time delay relay, the nano air stone is arranged in the center of the interior of the conical culture barrel, the water inlet pipe is arranged at the bottom of the conical culture barrel, small holes with the interval of 1 cm are formed in the pipe wall of the water inlet pipe, the included angle between the small holes and the bottom of the conical culture barrel is 45 degrees, a vertical pipe is installed outside each small hole, one end of each vertical pipe is connected to the water inlet pipe, the other end of each vertical pipe is connected to the water pump, thewater pump is connected to the time-delay relay, and the starting time is set through the time-delay relay; and the rotifer culture method comprises three parts: bait selection, culture water qualityselection and pollutant treatment. Rotifers cultured through the method are clean and free of pathogens, health of young fishes and shrimps is guaranteed, and meanwhile the survival rate of the youngfishes and shrimps is increased.

Description

technical field [0001] The invention belongs to the technical field of methods and systems for cultivating clean rotifers, in particular to a method and system for cultivating clean rotifers at high density. Background technique [0002] With the rapid development of the aquaculture industry, the demand for fish and shrimp seedlings has also increased significantly. As an indispensable biological bait for fish and shrimp seedlings, the market demand for ss-type ultramicrorotifers has also grown rapidly. Under natural conditions, The rotifers are too large, and the palatability is not good, especially the opening diameter of some seawater fry is very small, and the size of the bait is very high, and the bait larger than 50 microns cannot be eaten, which will affect the survival rate of fish and shrimp seedlings The pollution of the growth environment leads to the carrying of pathogens, which poses a potential threat to the health of fish and shrimp seedlings. The factory-bred...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the aquaculture industry, the demand for fish and shrimp seedlings has also increased significantly. As an indispensable biological bait for fish and shrimp seedlings, the market demand for ss-type ultramicrorotifers has also grown rapidly. Under natural conditions, The rotifers are too large, and the palatability is not good, especially the opening diameter of some seawater fry is very small, and the size of the bait is very high, and the bait larger than 50 microns cannot be eaten, which will affect the survival rate of fish and shrimp seedlings The pollution of the growth environment leads to the carrying of pathogens, which poses a potential threat to the health of fish and shrimp seedlings. The factory-bred rotifers become the first choice for seawater fish and shrimp seedlings to open their mouths.

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