Infrared thermography as a technique for detecting subclinical bovine mastitis

IF 0.4 4区农林科学 Q4 VETERINARY SCIENCES

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI:10.1590/1678-4162-12834

A.V.D. Oliveira, E. Reis, P. Ferraz, M. Barbari, G. Santos, M. Cruz, G. F. Silva, A.O.L. Silva

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引用次数: 2

Abstract

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<0.05) between the months of the year. Cow udder temperatures of thermographic images were significantly different (p<0.05) from CMT results for animals with subclinical mastitis. CMT results showed that 45 cows (39.8%) in January, 52 cows (46%) in February and 57 cows (50.4%) in March had subclinical mastitis. Infrared thermography is a technique that can be used for the early detection of subclinical mastitis in dairy herds in a grazing system, as it detected an increase in the udder surface temperature of the same cows that were positive for CMT.

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红外热像检测亚临床乳腺炎

红外热像仪是一种非侵入性的诊断工具，可用于早期检测放牧奶牛的亚临床乳腺炎。这项研究是在雨季期间在亚马逊西部阿克的Sena Madureira的八个奶牛场进行的。对113头泌乳杂交奶牛进行监测，每天凌晨02:00至06:00在挤奶前进行一次测量。随后应用加州乳腺炎试验(CMT)。数据处理在R编程语言中进行，并通过线性模型进行评估。结果表明，奶牛的乳房表面温度在不同月份之间存在显著差异(p<0.05)。亚临床乳腺炎动物的乳房温度与CMT结果有显著差异(p<0.05)。CMT结果显示，1月45头奶牛(39.8%)、2月52头奶牛(46%)、3月57头奶牛(50.4%)出现亚临床乳腺炎。红外热像仪是一种可用于放牧系统中奶牛群亚临床乳腺炎的早期检测技术，因为它检测到CMT阳性的奶牛的乳房表面温度升高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia 农林科学-兽医学

CiteScore

0.80

自引率

25.00%

发文量

111

审稿时长

9-18 weeks

期刊介绍： Publica artigos originais de pesquisa sobre temas de medicina veterinária, zootecnia, tecnologia e inspeção de produtos de origem animal e áreas afins relacionadas com a produção animal. Atualmente a revista mantém 628 permutas (419 internacionais e 209 nacionais), sendo um verdadeiro suporte para o recebimento de periódicos pela Biblioteca da Escola. A partir de 1999, a Escola de Veterinária delegou à FEP MVZ Editora o encargo do gerenciamento e edição de todas suas publicações, inclusive do Arquivo, ficando somente com o apoio logístico (instalações, equipamentos, pessoal etc.). O apoio financeiro é exercido pelo CNPq/FINEP e pela própria FEP MVZ.