Culture method for improving benefits of crayfishes, June hairy crabs and freshwater shrimps

Abstract

The present invention discloses a culture method for improving the benefits of crayfishes, June hairy crabs and freshwater shrimps. The method comprises the following steps of S1, selecting a pond, wherein the selection requirements of the pond are that the area is 30 mu and the direction is from east to west. According to the culture method for improving the benefits of the crayfishes, the June hairy crabs and the freshwater shrimps, the culture pond is spaced half and half by a net sheet in a same culture unit, or a culture region is spaced by a purse net, and crayfish, crab and freshwater shrimp seeds are subjected to single culture, alternate culture and mixed culture in different culture regions, so that a culture water body is fully utilized, the growth advantages of different species are exerted, differential culture of the different species is realized, management and intensive catching are facilitated, and intensive market sale of products is facilitated; in the first stage, the low-density crayfishes and June hairy crabs are subjected to single culture, so that the culture time is staggered, the products come into the market in advance, and the culture benefits are greatly improved; and ecological resources of the pond are protected to provide a good ecological environment for alternate culture and mixed culture of the crabs and the shrimps in the second stage.

Description

technical field [0001] The invention relates to the technical field of agricultural breeding, in particular to a breeding method for improving the efficiency of crayfish, river crab "Junehuang" and freshwater shrimp. Background technique [0002] "June Yellow" is a molting of crabs in the middle and lower reaches of the Yangtze River before they enter the mature stage. The time is in June of the lunar calendar, which is the intermediate stage of river crabs from "juvenile" to "youth". Commonly known as "boy crab", the weight is generally 75-100g / piece. It has the characteristics of crisp outer shell, soft inner shell, heavy fishy smell, and plump meat. [0003] In the traditional breeding process, crayfish, river crabs and freshwater shrimp are cultured in separate ponds or mixed together. If the cultivation is carried out in separate ponds, the area of ​​the pond will be larger. There is a long idle period after fishing crabs or freshwater prawns, which increases costs and...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a breeding method for improving the benefits of crayfish, river crab "June Yellow" and freshwater shrimp, which solves the problem that if separate pond cultivation is adopted, the area of ​​the pond used will be larger, and at the same time The pond has a long idle period after the crayfish, river crab or green shrimp are caught, which increases costs and wastes resources at the same time. If mixed farming is adopted, a unified feed and breeding management plan is adopted, while crayfish, river crab and green shrimp There are some differences between the optimal feed and the optimal breeding management plan during breeding, which makes the value-added speed of crayfish, river crab and freshwater shrimp have a gap compared with the optimal situation, so that the breeding speed is not maximized. At the same time, it will also lead to a decrease in the utilization rate of the feed. Compared with separate farming, although the species has been enriched, the output has decreased.