Solid-Substrate Insect Egg-Laying Medium for Industrial Egg Separation
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Solution Overview
Problem
Existing methods for collecting insect eggs on an industrial scale are inefficient and unsuitable for high productivity, particularly in terms of areal terms, and do not clearly describe how female insects lay eggs stuck to a container wall, leading to issues like egg consumption by larvae and low egg separation efficiency.
Innovation Solution
An egg-laying medium comprising at least 80% by weight of a solid substrate with particle sizes smaller than 0.5 mm and moisture content between 0 and 15%, along with an aqueous and optionally nutritional gel, is used to facilitate egg collection, supported by a laying tray design that allows easy separation of eggs from other constituents using automated sorting devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If eggs are laid in the nutrient medium, then the eggs are deposited with the larval population, but this makes separation difficult and leads to egg consumption by larvae
Solution Approach 1:
The patent separates the egg-laying function from the larval rearing function by providing a dedicated egg collection substrate distinct from the larval nutrient medium. This segmentation allows eggs to be deposited in a controlled location where they can be easily separated from the larval population, preventing egg consumption and enabling efficient collection.
Solution Approach 2:
The patent introduces an intermediary egg collection substrate (such as a mesh screen or specific surface) that mediates between the female insects and the final egg collection system. This intermediary structure allows eggs to be deposited and then easily retrieved through mechanisms like shaking or rinsing, while keeping eggs separate from larvae throughout the process.
2Productivity
If a filtering net is used to separate females from eggs, then female recovery is possible, but the method is not suitable for industrial scale with high productivity
Solution Approach 1:
The patent designs the egg collection substrate to enable self-service collection, where eggs naturally adhere to or accumulate on the substrate surface and can be retrieved through simple mechanical actions like shaking, rinsing, or scraping. This eliminates the need for complex filtering nets and manual separation processes, making the system suitable for industrial scale operations with high productivity.
Solution Approach 2:
The patent replaces complex mechanical filtering systems with simpler retrieval mechanisms. Instead of using filtering nets that require manual operation and complex assembly, the invention uses substrates that allow egg recovery through basic mechanical actions such as shaking, rinsing with water, or scraping, significantly reducing device complexity while maintaining industrial scalability.
3Productivity
If eggs are made to stick to container walls, then egg collection is simplified, but the method does not clearly describe the laying process and is not suitable for high areal productivity
Solution Approach 1:
The patent applies local quality by providing egg collection substrates with specific surface properties (such as mesh structures, adhesive surfaces, or textured patterns) in specific locations within the container. These localized areas are designed to promote egg adhesion and facilitate retrieval, while maintaining high areal productivity through optimized surface area and distribution within the container space.
Data Source
AI summary
Breeding of insects and the separation of insect eggs from other constituents of an egg-laying medium. An egg-laying medium for insects, comprising at least 80% by weight of a solid substrate in the form of particles, at least 85% by weight of said particles having a size of less than 0.5 mm, wherein the weight percentage is given in relation to the total weight of the insect egg-laying medium. Also a laying tray and uses thereof, particularly in a method for collecting insect eggs.