High-yield method for breeding freshwater shrimps in greenhouse in winter

Abstract

The invention discloses a high-yield method for breeding freshwater shrimps in a greenhouse in winter, belongs to the field of aquaculture, and relates to winter breeding biology of the freshwater shrimps and a high-yielding breeding method in the greenhouse. The high-yield method for breeding freshwater shrimps in a greenhouse in winter includes the following water environment control and feeding management techniques: constructing the plastic greenhouse above a freshwater shrimp breeding pond; cultivating aquatic plants in the breeding pond to optimize water quality; putting young freshwater shrimps in the pond at appropriate time; constructing an aeration system for continually oxygenating; pouring pellet feed in the pond and adding chilled fish blocks; catching the big freshwater shrimps and leaving the small freshwater shrimps in the pond to be bred. It solves such technical problems that the freshwater shrimps are rarely grown in winter, the specifications of the products are small and the proportion of the big freshwater shrimps is small. The method and the techniques are feasible. By taking the advantages of the temperature increasing and thermal insulation properties of the sunlight aquatic greenhouse, the growth temperature-adaptation period is prolonged, and the use efficiency of idle winter greenhouses is improved. The techniques are firstly put forward in the field of domestic freshwater shrimp farming, are convenient to use for aquaculture enterprises and farmers, and have broad prospects.

Description

technical field [0001] The invention relates to the biology and high-yield culture method of Macrobrachium prawns in winter, in particular to the water environment control and feeding management technology for high-yield culture of freshwater prawns in greenhouses in winter. Background technique [0002] Freshwater shrimp (Macrobrachium nipponense) belongs to the phylum Arthropoda, Crustacea, Decapod order, Longarm shrimp family, Macrobrachium genus. The scientific name Macrobrachium japonica, commonly known as river shrimp and lake shrimp, is one of the most important freshwater economic shrimps in my country. It is relatively large and widely distributed in my country. It is an important freshwater cultured shrimp in my country. It is distributed in Jiangsu, Shanghai, Zhejiang, Fujian, Jiangxi, Guangdong, Hunan, Hubei, Sichuan, Hebei, Henan, Shandong and other places. It lives widely in freshwater lakes, rivers, ponds, and swamps. The freshwater shrimp produced in Taihu L...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems such as the small growth of freshwater shrimps in winter caused by the above-mentioned existing breeding methods, the small size of commodities, and the small proportion of large-scale individuals. In the idle greenhouses, through the improvement of the existing breeding methods, a series of effective technical measures are adopted to provide technical guarantees for the growth of freshwater shrimp in winter and the production of large-scale commercial freshwater shrimp, and to increase the proportion of large-scale commercial freshwater shrimp. In the severe winter season, the pool water freezes, and broodstock prawns die due to hypoxia and suffocation; it can also be used for safe and efficient overwintering of freshwater shrimp; restore the value of idle overwintering greenhouse facilities, prolong the breeding period, and improve the breeding efficiency