Tracking the behavior of dairy cows to monitor everything from lameness to estrous expression has become a widely adopted practice in recent years.
But a team of Japanese researcher contends that they have devised a cow-monitoring system that is superior to many others, because of its no-touch features that “let cows be cows.”
Unlike attaching mechanical devices to cows, the system developed by researchers at the Tokyo University of Science relies strictly on cameras and image analysis. They say their multi-camera system has the ability to monitor cows across entire barns with 90% accuracy.
“This non-intrusive method enables early disease detection, health monitoring, and improved breeding management. It offers a practical solution for dairy farmers to enhance milk production and herd well-being efficiently,” they noted.
And unlike other camera-based monitoring system, the Japanese design uses location information rather than complicated image patterns. Lead researcher Yota Yamamoto explained, “This is the first attempt to track dairy cows across an entire barn using multi-camera systems. While previous studies have used multiple cameras to track cows, each camera typically tracks cows individually -- often the same cow as a different one across cameras. Although some methods enable consistent tracking across cameras, they have been limited to two or three cameras covering only a portion of the barn.”
In tests using video footage of cows moving closely together in a barn, this Japanese system achieved about 90% accuracy in tracking the cows, measured through Multi-Object Tracking Accuracy. The ability to analyze individual cows’ walking patterns, visits to feeding stations, and water consumption habits can signal changes that might indicate illness, estrous, or injury.
The results of experimental research with the system recently were published in a special Computers and Electronics in Agriculture feature in the Journal of Dairy Science. “This method enables optimal management and round-the-clock health monitoring of dairy cows, ensuring high-quality milk production at a reasonable price,” stated Yamamoto.
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