Method for preventing green crabs from killing each other
A technology of cannibalizing and killing blue crabs, applied in fish farming, application, climate change adaptation, etc., can solve problems such as reducing breeding benefits, and achieve the goal of improving survival rate and output, improving survival rate, and reducing the killing behavior of blue crabs. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0027] From the young crabs to the crab breeding stage, the effect of using the method of inhibiting the cannibalism of blue crabs: the stocking density of young crabs is 3000 / mu, and other water temperature, salinity, and water quality conditions are carried out according to the breeding standards. Inhibiting the bait by mass percentage, the content of L-tryptophan is 0.5% of the dry weight of the artificial bait or natural bait, and feeding the inhibiting bait every day; when it is close to the stage of detaining crabs, the inhibiting bait is based on the mass percentage, L-tryptophan The content of acid is 0.8% of the dry weight of artificial compound bait or natural bait, and the inhibiting bait is fed every day. After about 45 days of breeding and management, the young crabs can be cultivated into buckle crabs with a carapace width of about 2.5 cm. Compared with the control group, the survival rate of the experimental group increased by 21.3%.
Embodiment 2
[0029] The effect of the method of inhibiting the cannibalism of blue crabs from the breeding stage of crabs to small-sized (below 250g) finished crabs: the stocking density of crabs is 1000 / mu, and other water temperature, salinity, and water quality conditions are carried out in accordance with the breeding specifications. In each molting (molting) cycle, the inhibitory bait is fed every day from 5 days before the molting to the day of the molting. The content of the inhibitory bait is calculated by mass percentage, and the content of L-tryptophan is the dry weight of artificial compound bait or natural bait 0.9%. After about 75 days of breeding, the buckle crab can reach a small-sized finished crab with a weight of 150-200g. Compared with the control group, the survival rate of the experimental group increased by 18.6%.
Embodiment 3
[0031] The effect of the method of inhibiting the cannibalism of blue crabs from the breeding stage of crabs to large-scale (above 250g) finished crabs: the stocking density of crabs is 800 / mu, and other water temperature, salinity, and water quality conditions are carried out in accordance with the breeding specifications. In each molting (molting) cycle, the inhibitory bait is fed every day from 5 days before the molting to the day of the molting. The content of the inhibitory bait is calculated by mass percentage, and the content of L-tryptophan is the dry weight of artificial compound bait or natural bait 1.0% of. After 115 days of breeding, the buckle crabs have grown into large-scale blue crabs with a weight of more than 300g. Compared with the control group, the survival rate of the experimental group increased by 15.1%.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com