Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.
Sensors (Basel). 2024 Feb 20;24(5):1361. doi: 10.3390/s24051361.
On-farm milk flow meter technology facilitates real-time assessment of individual cow milking observations and could be used to detect milking liner slips during machine milking of dairy cows. Here, we compared the accuracy of on-farm milk flow meters for detecting milking liner slips with that of audible detection and that of a portable vacuum recording system. Compared to audible detection methods, the on-farm milk flow meter facilitated the detection of milking liner slips with moderate accuracy. Using the vacuum recording system as the gold standard, the milk flow meter system failed to detect most of the liner slips, leading to poor agreement between the two devices. We conclude that the on-farm milk flow meter system tested here compared well with audible detection; however, when vacuum recordings were considered, we found significant levels of under-detection. Taken together, dairy operators may use the on-farm milk flow meter system to inform adjustments of the milking machine settings and monitor milking routine performance. However, the system is not suitable for monitoring short-duration vacuum fluctuations. Future research is warranted to optimize the sensor-based detection of milking liner slips.
在农场的牛奶流量计技术便于实时评估个体奶牛挤奶观察，并可用于检测在奶牛挤奶机挤奶衬垫滑。在这里，我们比较了在农场的牛奶流量计检测挤奶衬垫滑的准确性与可听检测和便携式真空记录系统。与可听检测方法相比，在农场的牛奶流量计便于挤奶衬垫滑的检测具有中等精度。使用真空记录系统作为金标准，牛奶流量计系统未能检测到大多数衬垫滑，导致两个设备之间的协议不佳。我们的结论是，在农场的牛奶流量计系统测试这里与可听检测比较好; 然而，当考虑真空记录时，我们发现显著水平的检测不足。总的来说，奶农可能会使用在农场的牛奶流量计系统来调整挤奶机设置和监测挤奶常规性能。然而，该系统不适合监测短持续时间的真空波动。未来的研究是必要的，以优化基于传感器的挤奶衬垫滑检测。
