Freshwater crayfish culture method

Abstract

The invention relates to the technical field of aquatic animal culture, in particular to a freshwater crayfish culture method. The freshwater crayfish culture method comprises the following steps: artificially constructing culture ponds with the area of 10 to 20 m<2> when the freshwater crayfish is cultured; allocating a feeding pond for each culture pond, and stocking crayfish seeds with the body lengths of 0.8 to 1 cm in each culture pond, wherein 100 to 150 crayfish seeds are stocked in each culture pond; feeding the crayfish in two feeding stages, namely feeding at 10 to 12 very morning and at 20 to 22 every night, wherein the lasting time of the first feeding stage is 18 to 20 days, and the lasting time of the second feeding stage is 30 to 40 days; in the period of the first feeding stage and the second feeding stage, introducing oxygen into each culture pond once every other three days by using an oxygen increasing machine, wherein the displacement of the oxygen increasing machine is 6-8 L / min, and the oxygen is introduced for 8 to 10 hours each time.

Description

technical field [0001] The invention relates to the technical field of aquatic animal breeding, in particular to a freshwater crayfish breeding method. Background technique [0002] Freshwater crayfish is a kind of freshwater economical shrimp. It is widely welcomed by people because of its delicious meat. Because of its omnivorous nature, fast growth speed and strong adaptability, it has formed an absolute competitive advantage in the local ecological environment. In recent years, it has become an important economic Crayfish are aquaculture species. Since crayfish have a strong tolerance to polluted environments, in order to save farming costs, most farmers do not pay much attention to the aquaculture environment of crayfish. At present, my country's water bodies are seriously polluted by heavy metals, and some water bodies have heavy metals in the sediment Zinc, lead, cadmium and mercury exceed the standard by more than 150 times, and the crayfish itself has a strong ability...

AI Technical Summary

Problems solved by technology

[0002] Freshwater crayfish is a kind of freshwater economical shrimp. It is widely welcomed by people because of its delicious meat. Because of its omnivorous nature, fast growth speed and strong adaptability, it has formed an absolute competitive advantage in the local ecological environment. In recent years, it has become an important economic Crayfish are aquaculture species. Since crayfish have a strong tolerance to polluted environments, in order to save farming costs, most farmers do not pay much attention to the aquaculture environment of crayfish. At present, my country's water bodies are seriously polluted by heavy metals, and some water bodies have heavy metals in the sediment Zinc, lead, cadmium and mercury exceed the standard by more than 150 times, and the crayfish itself has a strong ability to accumulate heavy metals, resulting in a large number of bacteria, parasites and heavy metals in the cultured crayfish, which do not meet the healthy food standards , and if the water environment for crayfish breeding is strictly controlled, on the one hand, it will require a large cost, and on the other hand, it will prolong the growth cycle of crayfish, resulting in slower accumulation of crayfish meat