Culture medium for freshwater shrimp culture and preparation method thereof

Abstract

The invention discloses a culture medium for freshwater shrimp culture and a preparation method thereof. The culture medium is prepared from, by mass, 10-40 parts of cow dung, 10-30 parts of sheep manure, 5-15 parts of straw, 1-6 parts of molasses, 1-5 parts of ferrous sulfate, 5-10 parts of rapeseed cakes, 1-6 parts of livestock excrement zymophyte and 10-30 parts of bean cakes or corn grains or the combination of bean cakes and corn grains. In the culture process of white shrimp and giant freshwater prawn, the culture medium is adopted, water fertility can be improved, water plant growth can be promoted, the pure water oxygen dissolution degree is increased, harmful gas is made to be volatilized, the good ecological environment is provided for freshwater shrimp, the survival rate of freshwater shrimp is greatly increased, and the illness rate of freshwater shrimp is lowered; meanwhile, water earthworms, chironomidae larvae, plankton and other fresh and high-quality aquatic organisms are cultured, high-quality bait is provided for freshwater shrimp, input of artificial bait is effectively lowered, and the production cost is lowered.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a culture medium for freshwater shrimp and a preparation method thereof. Background technique [0002] After decades of development, my country's freshwater aquaculture industry has ranked first in the world in terms of industrial scale and aquaculture output. In 2011, the total freshwater aquaculture output reached 24.719 million tons, an increase of 63% over 2000. Among them, freshwater shrimp farming The output reached 1.52 million tons, the aquaculture output of Procambarus clarkii was 486,000 tons, the freshwater aquaculture output of Penaeus vannamei was 660,000 tons, the aquaculture output of Macrobrachium japonicus was 230,000 tons, and the aquaculture output of Macrobrachium rosenbergii was 123,000 tons Ton. The aquaculture output of river crabs has shown a slow growth trend in recent years. The aquaculture output in 2011 increased by 9.4% compared with 2010, reaching...

AI Technical Summary

Problems solved by technology

After the naturally fermented fertilizer is put into the breeding pond, H often appears at the bottom of the breeding pond 2 S, NH 4 -Increased N, deterioration of pond bottom environment, high input, low output, easy to damage the pond, and will lead to reduced breeding benefits, harm to shrimp and crab products, and reduced breeding benefits