Estrus Detection Patch with Floodcoat Indicator for Livestock
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Solution Overview
Problem
Current methods for detecting estrus in ruminant animals, such as cows, are inefficient and prone to errors due to the short duration of the heat cycle, requiring constant visual observation and often result in missed detections and complications with existing indicator devices.
Innovation Solution
A durable and practical indicator system comprising a patch with a fluorescent indicator layer that changes visibility upon mounting, allowing for remote detection of estrus through visible changes, providing a simple and accurate method for monitoring breeding status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual observation methods are used to detect estrus, then no additional equipment is required, but detection accuracy decreases and time consumption increases due to the short heat cycle duration
Solution Approach 1:
The indicator device is attached to the animal in advance before the heat cycle begins. The device is pre-positioned on the animal's body (typically between the hip bones) so that when mounting occurs during estrus, the indicator is already in place to capture and display the event, eliminating the need for continuous observation during the critical heat window.
Solution Approach 2:
A mechanical indicator device serves as an intermediary between the mounting action and the observer. The device translates the physical act of mounting into a visible signal (such as a flag deployment, color change, or audible click) that can be detected from a distance, mediating the information transfer without requiring direct visual contact with the animal's behavior.
2Extent of automation
If passive marker fluid reservoir devices are used, then automatic indication of mounting is achieved, but the devices suffer from incidental seepage resulting in short shelf-life
Solution Approach 1:
The indicator mechanism is designed with pre-positioned components that are activated only when the specific mounting pressure is applied. The indicator remains in a neutral, non-activated state during storage and transport, with the activation mechanism (such as a spring-loaded flag or breakable seal) protected until the actual mounting event occurs, preventing premature activation or leakage.
Solution Approach 2:
The device responds to a specific parameter threshold - the pressure exerted during mounting. The indicator mechanism is calibrated to activate only when the pressure exceeds a predetermined level characteristic of mounting behavior, while remaining insensitive to lower pressures during normal movement or storage, thus distinguishing between relevant and irrelevant pressure events.
3Measurement precision
If complicated dye packet devices are used, then mounting detection is achieved, but the devices become expensive and complex
Solution Approach 1:
The invention extracts only the essential function from complex prior art devices - the detection of mounting pressure - and implements it through a simplified mechanism. Instead of using complicated dye packets or multiple components, the invention employs a simple indicator element (such as a single flag, color-changing material, or audible clicker) that responds directly to the mounting pressure without requiring complex activation sequences or multiple parts.
Solution Approach 2:
The indicator device is designed as a simple, low-cost, disposable unit that can be attached to each animal for the duration of the heat detection period and then discarded. This eliminates the need for expensive, complex, reusable devices with multiple moving parts, maintenance requirements, and high manufacturing costs, while still providing reliable mounting detection for the intended use period.
Data Source
AI summary
A method of determining breeding status in animals by (a) determining a breeding event (cyclicity, mounting, pregnancy, open) time, (b) providing an estrus or other breeding event detection apparatus, (c) affixing the estrus detection apparatus at a predetermined location on a female animal at a predetermined application time prior to the breeding event time, and (d) monitoring the estrus detection apparatus for activation thereof. An indicator apparatus is provided for use in indicating when an animal is in estrus. The apparatus is configured to be affixed to the rump of an animal to detect and indicate when the animal has been mounted and, thus, when the animal is in estrus. The apparatus is affixed to the animal by an adhesive layer. Layered on the top surface of the adhesive layer is an indicator layer that is in turn covered with a floodcoat layer. The floodcoat layer is adapted for removal upon the mounting of the first animal by a second animal. Removal of the floodcoat layer exposes the indicator layer indicating that the first animal has been mounted, thereby indicating that the first animal is in heat. The floodcoat layer is highly visible and may be seen from a distance.