Cultivation technique of freshwater shrimps

Abstract

The invention discloses a cultivation technique of freshwater shrimps. The cultivation technique comprises the following steps of (1) establishing a cultivation pond of which the bottom is flat and the two sides are slopes, laying loam soil at the bottom of the cultivation pond, laying a layer of maifan stones on the loam soil, and separately arranging a row of cultivation net cages of which the specification is 5m* 5m* 1m on the other two sides of the pond (except the two slopes); (2) half a month before breeding, performing disinfection treatment on the cultivation pond, and mounting oxygen supply equipment; (3) planting lythrum salicaria, aquatic iris and cyperus alternifolius on the slopes of the pond, planting dendrobium lohohense, potamogeton pectinatus and elodea nuttallii at the bottom of the pond, and putting pear-shaped bellamya in the pond to form a water body self-purification system; (4) designing a formula feed and fresh bait; (5) performing classified breeding, and performing gradient feeding; and (6) performing reasonable fishing. According to the cultivation technique disclosed by the invention, comprehensive nutrition can good-quality growth environment are provided for the growth of the freshwater shrimps, the growth speed of the freshwater shrimps can be notably increased, the immunity of the freshwater shrimps can be notably enhanced, the yield and the quality of the freshwater shrimps are improved, the survival rate of cultured shrimp larvae is increased, and the economic benefits of breeding households are guaranteed.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a culture technique for freshwater shrimp. Background technique [0002] Freshwater shrimp is one of the freshwater shrimps with high economic value. It grows fast, is large in size, reproduces fast, and has strong vitality. It is widely distributed in freshwater lakes in China. The meat of freshwater shrimp is tender and delicious, and it is rich in nutrition. The protein is 16.40g, and nutritionists believe that it has a certain function of nourishing the brain; China's freshwater shrimp farming and breeding technology only started in the late 1990s, but for many years, the artificial breeding technology of freshwater shrimp has not yet made a breakthrough. Since the century, due to the continuous improvement of people's consumption level and the increase of market demand, coupled with the reduction of natural production of freshwater shrimp and the reduction of group size,...

AI Technical Summary

Problems solved by technology

[0002] Freshwater shrimp is one of the freshwater shrimps with high economic value. It grows fast, is large in size, reproduces fast, and has strong vitality. It is widely distributed in freshwater lakes in China. The meat of freshwater shrimp is tender and delicious, and it is rich in nutrition. The protein is 16.40g, and nutritionists believe that it has a certain function of nourishing the brain; China's freshwater shrimp farming and breeding technology only started in the late 1990s, but for many years, the artificial breeding technology of freshwater shrimp has not yet made a breakthrough. Since the century, due to the continuous improvement of people's consumption level and the increase of market demand, coupled with the reduction of natural production of freshwater shrimp and the reduction of group size, the production of freshwater shrimp cannot meet the market demand. Uneven specifications lead to large individual differences in freshwater shrimp, low aquaculture output, and germplasm degradation; although the aquaculture model of the prior art is simple to operate and low in cost, it has low aquaculture survival rate, low density, slow growth rate, and poor economic benefits. problem; in the prior art breeding process, the nutrition of the bait is not comprehensive, and the supply of vitamins and minerals is insufficient; in the breeding process, the water quality requirements are also very strict, and pesticides and water pollution will cause diseases and deaths; Some freshwater shrimp artificial breeding techniques have been improved to improve the quality of artificial breeding