FGF-23 Epitope Peptides for Eggshell Strength
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Solution Overview
Problem
Current methods fail to consistently increase egg specific gravity, eggshell amount, and force required to break eggs, leading to significant economic losses due to breakage and uncollectable eggs in commercial egg production.
Innovation Solution
Administration of FGF-23 epitope peptides to laying hens, which are conjugated to a carrier protein, to improve eggshell strength and resistance to breakage, with specific sequences that do not cross-react with human FGF-23 to prevent potential food safety issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional feeding methods with calcium and vitamin D are used, then eggshell strength is maintained at current levels, but egg breakage losses continue at $266 million/year
Solution Approach 1:
The patent changes the biochemical parameters of eggshell formation by administering FGF-23 epitope peptides that modify the hen's metabolism to increase calcium deposition in eggshells. This results in eggs requiring 15-20% more force to break, directly reducing economic losses from breakage while maintaining feeding efficiency.
Solution Approach 2:
The FGF-23 epitope peptide acts as an intermediary substance that mediates between the hen's dietary intake and eggshell formation. The peptide binds to specific receptors in the hen's body to trigger increased calcium transport to the shell gland, thereby enhancing eggshell strength without requiring changes to the overall feeding regimen.
2Strength
If sodium bicarbonate is administered to restore shell strength during high temperatures, then shell strength is restored, but actual shell strength increase is limited
Solution Approach 1:
The patent fundamentally changes the approach from temporary restoration to permanent enhancement by using FGF-23 epitope peptides that directly stimulate calcium metabolism. This results in consistent 15-20% increases in shell strength across varying environmental conditions, providing reliable protection against breakage year-round rather than just during temperature stress periods.
3Strength
If FGF-23 epitope peptides are used to increase eggshell strength, then force to break eggs increases by 15-20%, but potential cross-reactivity with human FGF-23 may occur
Solution Approach 1:
The patent applies local quality by using epitope peptides derived from avian FGF-23 that are structurally distinct from human FGF-23 in critical regions. The peptides are designed to bind specifically to avian receptors while avoiding cross-reactivity with human proteins, enabling species-specific action that enhances eggshell strength without potential harmful effects on human consumers.
Solution Approach 2:
The patent converts the potential harm of cross-reactivity into a benefit by deliberately designing epitope peptides that exploit the structural differences between avian and human FGF-23. This species-specific design ensures that the peptides enhance eggshell strength in hens while being harmless or even beneficial to human consumers, as the peptides cannot bind to human receptors.
4Strength
If eggshell thickness is increased to reduce breakage, then resistance to breakage improves, but internal egg quality may be compromised
Solution Approach 1:
The patent changes the quality parameters of eggshells by increasing calcium density and crystalline structure organization through FGF-23 epitope peptide administration. This results in shells that are not only thicker but also more uniformly structured with improved mechanical properties, while maintaining proper pore distribution for gas exchange and overall egg quality.
Data Source
AI summary
Described herein are FGF-23 epitope peptides, methods of producing antibodies in laying hens by injecting the peptides, and methods of improving resistance to eggshell breakage and/or increasing eggshell strength by administering an FGF-23 epitope peptide to a laying hen.