Unlock instant, AI-driven research and patent intelligence for your innovation.

Soft-shell crab production method

A production method and soft-shell crab technology are applied in the production field of soft-shell crabs, which can solve the problems of increasing labor intensity and production cost, reducing survival rate, injury and the like, preventing mutual infection and killing, reducing production process and cost, Ease of promotion

Inactive Publication Date: 2020-01-21
INST OF OCEANOLOGY & MARINE FISHERIES JIANGSU
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before the production of soft-shell crabs, the secondary fishing, selection, removal of the pincers and mechanical non-stop screening of soft-shell crabs at the bottom of the pool will inevitably increase labor intensity and production costs. Causes infection and damage, which reduces survival rates

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 228 Portunus crabs of about 100 grams cultivated in ponds were grouped according to the molting cycle and directly put into grid-type intensive culture ponds (also soft-shell crab production ponds) for temporary cultivation. Crabs with the same molting cycle were placed in the same area to It is beneficial to management, observe its molting situation once every 2 to 3 hours every day, and find that the soft-shell crabs that have just molted are about to be fished out for low-temperature quick-freezing. Portunus crabs are grouped according to their molting cycle and put directly into grid-style intensive culture ponds. No matter the size, one crab per cell can effectively prevent the swimming crabs from killing. Fish out the soft-shell crabs in time when the cultured crabs molt; and freeze the fished-out soft-shell crabs at low temperature. Drain slightly, vacuum pack under 0.01MPa vacuum degree, then perform quick freezing treatment at -35~-50°C, and then store in a ref...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a soft-shell crab production method, which belongs to the technical field of aquaculture. The invention discloses the soft-shell crab production method, which includes groupingswimming crabs according to molting cycles; placing crabs with the same molting cycle in the same area to facilitate management; observing molting conditions of the swimming crabs every 2-3 hours every day; and fishing out the newly-molted soft-shell crabs for low-temperature quick freezing. According to the method, swimming crabs are grouped according to molting cycles, the same molting cycles are placed in one area, and each crab is temporarily cultured independently, so that killing of swimming crabs is effectively prevented, molting conditions are further easy to observe, the production ofthe soft-shell crabs is completed when the soft-shell crabs which have just molted are fished out for quick freezing, and the soft-shell crabs are directly produced in a grid type intensive culture tank in one step, so that time and labor are saved, the production process and cost of the soft-shell crabs are reduced, and popularization is facilitated.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a production method of soft-shell crabs. Background technique [0002] Swimming crabs (Portunus trituberculatus) belong to crustaceans, and their growth is accompanied by moulting. Portunus crab seedlings (C1 stage) hatched in spring need to molt about 11 times in the same year (about C12 stage). The new shell of crab is soft, commonly known as soft shell crab. Soft-shell crabs are soft and tender. Due to the transformation of the skin during molting, the old gills and viscera are also sloughed off. Therefore, the reborn soft-shell crabs are especially clean, delicious and edible. The soft shell is rich in crab Nutrients such as crab red pigment, chitin, chitosan, etc. have more nutritional value than ordinary crabs, and are good products in aquatic products. Because it is difficult to obtain and the quantity is very small, the economic value is much higher than ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A23L17/40A23B4/06A23B4/16
CPCA23B4/068A23B4/16A23L17/40A01K61/59Y02A40/81
Inventor 许程林吉红九赵永超陈淑吟陈玉生李多刘俊明
Owner INST OF OCEANOLOGY & MARINE FISHERIES JIANGSU