Infrared thermography as a technique for detecting subclinical bovine mastitis

ABSTRACT Infrared thermography is a non-invasive diagnostic tool for early detection of subclinical mastitis in pasture-raised dairy cows. The study was conducted on eight dairy farms, in Sena Madureira, Acre, in the Western Amazon, during the rainy season. One hundred and thirteen lactating crossbred cows were monitored, with measurements performed once a day before milking, from 02:00 to 06:00 in the morning. The California Mastitis Test (CMT) was subsequently applied. Data processing was performed in the R programming language and evaluated by linear models. Our results show that cow udder surface temperature by infrared thermography showed significant differences (p摘要：红外热成像（Infrared thermography）是一种用于早期检测放牧饲养奶牛（pasture-raised dairy cows）亚临床乳腺炎（subclinical mastitis）的非侵入式诊断工具。本研究于西亚马逊地区阿克雷州塞纳马杜雷拉的8个奶牛场开展，实验时段为雨季。研究共监测113头泌乳杂交奶牛，每日于清晨02:00至06:00挤奶前进行一次测量。随后开展奶牛乳腺炎加州测试（California Mastitis Test, CMT）。数据处理采用R编程语言（R programming language）完成，并通过线性模型（linear models）进行评估。本研究结果显示，通过红外热成像测得的奶牛乳房表面温度存在显著差异（p