Differential Illumination for Aviary Egg Placement Control
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Solution Overview
Problem
In cage-free egg production facilities, a significant percentage of eggs are laid outside designated areas, leading to losses due to the inability of automatic retrieval systems to collect eggs laid outside of nests, which affects profitability.
Innovation Solution
A system utilizing differential illumination with specific light spectrums, where areas within an aviary system are illuminated with a higher red component to encourage egg laying and areas outside are illuminated with a higher blue component to discourage laying, combined with directional light sources to control animal behavior and egg placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cage-free facilities allow animals to move freely in enclosures, then animal welfare and natural behavior are improved, but eggs are laid outside nests leading to retrieval failures and economic loss
Solution Approach 1:
The patent applies local quality by creating distinct lighting zones with different spectral characteristics - red-enriched light in nest areas to encourage egg laying, and blue-enriched light in non-nest areas to discourage laying. This spatial differentiation of light quality guides animals to lay eggs only in designated nest areas while maintaining overall enclosure freedom, thereby resolving the contradiction between animal movement freedom and egg retrieval efficiency.
2Extent of automation
If automatic egg retrieval systems are used, then labor costs are reduced and egg cleanliness is improved, but eggs laid outside nests cannot be retrieved
Solution Approach 1:
The patent employs preliminary action by using differential lighting to proactively guide animals to lay eggs only in nest areas before the eggs are laid. The red-enriched lighting in nests and blue-enriched lighting in non-nests creates behavioral conditioning that prevents eggs from being laid in non-retrievable locations, ensuring that the automatic retrieval system can collect all eggs without manual intervention or loss.
3Illumination intensity
If uniform lighting is provided throughout the enclosure, then overall visibility and animal comfort are improved, but animals lay eggs in non-nest areas
Solution Approach 1:
The patent implements local quality by maintaining sufficient overall illumination for animal comfort while creating spectral differentiation between zones. Nest areas receive red-enriched light to stimulate egg laying behavior, while non-nest areas receive blue-enriched light to discourage laying. This approach preserves adequate visibility and animal welfare while achieving precise control over egg placement locations.
Data Source
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AI summary
Differential illumination systems and methods selectively provide light having different spectrums in an aviary system for housing animals located within an enclosure, and in the enclosure. A first light source produces light with a first spectrum, and illuminates an internal volume of the aviary system. A second light source produces light with a second spectrum different from the first spectrum, and illuminates the enclosure outside of the aviary system. The first spectrum can have a higher red component than the second spectrum to encourage chicken to lay eggs inside of the aviary system, and the second spectrum can have a higher blue component than the first spectrum to discourage chicken from laying eggs outside of the aviary system.