A method for ecologically cultivating third-stage larvae in salt marsh wetland underground brackish water

A brackish water and wetland technology, applied in application, climate change adaptation, fish farming, etc., can solve problems such as the inability to realize the cultivation of juvenile crabs in the third stage
CN108124803BActive Publication Date: 2020-04-03NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
9 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
Publication Date
2020-04-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method for ecologically breeding III-stage juvenile crabs through salt marsh wetland underground brackish water, and relates to a method for salt-breeding the III-stage juvenile crabs. The method aims at solving the technical problem that breeding of the III-stage juvenile crabs cannot be achieved in inland fresh water regions currently. The method includes the steps of 1,selection of the place of a breeding pool; 2, digging of a slope-shaped annular groove; 3, establishment of a water source; 4, cultivating of high-quality palatable bait; 5, juvenile crab releasing;6, feed supplementing; 7, water supplementing. The method aims at developing and utilizing salt marsh wetland underground brackish water resources to ecologically breed the III-stage juvenile crabs, creating advantages for breeding one-year-old juvenile crabs and achieving the purpose of self-feed or partial self-feed of one-year-old juvenile crabs in the large-scale commercial crab breeding industry. After 28 days of breeding by means of the method for ecologically breeding the III-stage juvenile crabs through the salt marsh wetland underground brackish water, the average specification of theIII-stage juvenile crabs bred from juvenile crabs can reach 60.67 mg, and the survival rate reaches 25.79%. The method is applied to breeding the III-stage juvenile crabs.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for cultivating stage III larvae with salt. Background technique

[0002] In recent years, with the rapid development of wetland river crab aquaculture, the demand for first-year-old crab species has been increasing. The Longzhao Salt Marsh Wetland in the west of Jilin Province (National Swamp Unified No. 220882-037) is located in the floodplain of the lower reaches of the Huolin River, with a total area of ​​151,900 hm 2 , is the main breeding area for commercial crabs in Jilin Province, with a current breeding area of ​​36,700 hm 2 , the annual requirement of 1-year-old crab species is more than 1 million kg, and they must be purchased from Panjin, Liaoning. The transportation cost exceeds 1.5 million yuan, and the survival rate is lower than 80%. It can be seen that solving the self-sufficiency or partial self-sufficiency of the first-year-old crab species has become the key and urgent need to reduce costs and inc...

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