Automated Livestock Drying-Off System for Udder Pressure Control
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Solution Overview
Problem
Current methods for drying off dairy animals, such as cows, often result in discomfort, milk leakage, and increased risk of udder infections due to high milk pressure and prolonged milk production before calving, necessitating the use of antibiotics and artificial teat plugs, which are costly and may lead to antibiotic resistance.
Innovation Solution
An automated system and method that determines average milk production to initiate gradual or abrupt drying-off, using a milking controller and processor to manage milk removal, minimizing discomfort and infection risk by controlling the amount of milk extracted during each milking session based on predetermined criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the time between milkings is increased or the udder is not fully emptied during the drying-off period, then milk production decreases and the dry period can commence, but excess milk accumulates in the udder causing significantly increased pressure
Solution Approach 1:
The system dynamically adjusts the milking process by monitoring milk production in real-time and automatically controlling the milking machine to remove a predetermined fraction of produced milk, transitioning from static milking schedules to dynamic control that adapts to the cow's actual milk production rate
Solution Approach 2:
The system implements feedback control by continuously measuring milk production and using this information to control the milking process, ensuring that the amount of milk removed matches the predetermined fraction of milk produced, thereby maintaining udder pressure within acceptable limits
2Productivity
If the udder pressure is increased due to excess milk accumulation, then the dry-off process can be initiated, but discomfort and pain to the dairy animal occurs
Solution Approach 1:
The system enables the cow to essentially self-regulate the milking process by using sensors to monitor its own milk production and automatically controlling the milking machine to remove the appropriate amount, eliminating the need for manual judgment and reducing animal stress
Solution Approach 2:
The system replaces manual mechanical milking control with an automated electronic control system that uses sensors and algorithms to determine the optimal amount of milk to remove, substituting human judgment with precise mechanical control
3Reliability
If antibiotics are applied prophylactically to prevent infections, then udder infection risk is reduced, but the cost of caring for the dairy animal increases and antibiotic resistance in bacteria may increase
Solution Approach 1:
The system converts the potential harm of excess milk accumulation into a benefit by using the milk removal process to actively prevent udder infections, eliminating the need for prophylactic antibiotics and their associated costs and resistance issues
Solution Approach 2:
The system extracts and removes the problematic element (excess milk that would cause infection) before it can cause harm, preventing the need for antibiotic intervention entirely
4Productivity
If the udder is not fully emptied at each milking during the drying-off period, then milk production decreases, but leakage of milk from the teats occurs increasing infection probability
Solution Approach 1:
The system changes the key parameter of milk removal amount from fixed schedules to a dynamic value based on the predetermined fraction of actual milk produced, ensuring optimal udder emptying that prevents leakage while maintaining production reduction
Data Source
AI summary
A system and method for automatically drying-off a machine-milked dairy animal by controlling milk production during a gradual drying-off period. During the gradual drying-off period, the dairy animal is not milked out. For each milking during this period, an amount of milk to be removed is determined, which is less than the amount removed at a previous milking. When the amount of milk for the current milking has been removed from the dairy animal, milking is stopped. The start of the gradual drying-off period is calculated from the dry-off date, the desired date of cessation of milking for this lactation, and from a predetermined drying-off period.