Intestinal Biomarker Detection for Poultry Gut Health

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Solution Overview

Problem

Current methods for diagnosing intestinal health in poultry are invasive, subjective, and lack specific biomarkers for gut damage, making it difficult to monitor subclinical intestinal entities that affect performance.

Innovation Solution

A non-invasive method using a set of proteins (myeloid protein 1, fibronectin, annexin A5, nucleophosmin, carbonic anhydrase 2, aminopeptidase Ey, transthyretin, ovoinhibitor, and apolipoprotein A-1) quantified in intestinal content samples to assess gut health, correlating with markers such as villi shortening and inflammation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If macroscopic observations of the intestinal wall are used to monitor intestinal lesions, then the monitoring can be easily performed, but the detection precision is insufficient for subtle intestinal pathologies

Engineering Contradiction:
Improveease of monitoringVSAvoiddetection precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent introduces intestinal content samples as an intermediary medium that contains biomarkers reflecting intestinal health status. These biomarkers serve as mediators between the intestinal wall condition and the detection method, allowing indirect but precise monitoring of intestinal pathology through quantifiable molecular markers in the intestinal content

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces subjective macroscopic visual observation with objective quantitative biomarker measurement. Instead of relying on visual assessment of intestinal wall appearance, the method uses biochemical analysis of specific proteins and metabolites in intestinal content, substituting mechanical/visual inspection with molecular-level detection

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If histopathological microscopic observations are performed to obtain accurate picture of intestinal health, then the measurement precision is improved, but the method complexity and time consumption increase

Engineering Contradiction:
Improvedetection precisionVSAvoidmethod complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent extracts specific biomarkers from the complex intestinal tissue and focuses measurement on these isolated molecular markers rather than performing comprehensive histopathological examination. By taking out and measuring only the relevant biomarkers (such as specific proteins, metabolites) in intestinal content, the method achieves precise intestinal health assessment without the complexity of full histological analysis

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the measurement parameter from macroscopic visual characteristics or microscopic tissue structure to molecular-level biomarker concentrations. By shifting from structural parameters (villus height, crypt depth) to biochemical parameters (protein levels, metabolite concentrations), the method achieves comparable or superior precision with simplified procedures

Inventive Principle:
Principle #35Parameter changes

3Measurement precision

If post-mortem intestinal health monitoring is performed using traditional methods, then the diagnostic accuracy is achieved, but the predictive value for living animals is limited

Engineering Contradiction:
Improvediagnostic accuracyVSAvoidpredictive timing
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent enables preliminary detection of intestinal health status by measuring biomarkers in intestinal content from living animals before clinical symptoms develop. By detecting changes in biomarker levels (such as increased permeability markers, inflammatory proteins) in the intestinal content, the method provides early warning of impending intestinal damage, allowing preventive intervention before the disease manifests

Inventive Principle:
Principle #10Preliminary action

4Measurement precision

If invasive blood sampling is used to measure intestinal biomarkers, then the measurement precision is improved, but the ease of operation decreases

Engineering Contradiction:
Improvebiomarker quantification accuracyVSAvoidsampling ease
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent uses intestinal content samples as a non-invasive copy or proxy for intestinal tissue analysis. Instead of directly sampling blood or tissue, the method analyzes biomarkers present in the intestinal content (feces, luminal fluid) which reflect the intestinal health status. This copying approach provides equivalent diagnostic information without the invasiveness of blood sampling

Inventive Principle:
Principle #26Copying

Data Source

PatentEP3785033B1Intestinal biomarkers for intestinal health of poultry
Publication Date: 2025.12.10 UNIV GENT
  • EP3785033B1 patent drawingFigure 1a
  • EP3785033B1 patent drawingFigure 1b
  • EP3785033B1 patent drawingFigure 1c

AI summary

Growth performance, health and welfare of domesticated birds such as broilers heavily depends on a well-functioning intestinal tract. Consequently, there is a high need to find biomarkers which are specific for gut damage and which are easily applicable in the field. The present invention discloses a set of 20 specific proteins which can be quantified in fresh fecal droppings and/or intestinal content of said birds and which each specifically correlate with a damaged gut.