Scholarlink

<p>Following the global ban on mercury thermometers due to their toxicological risks, alternative devices such as digital, ecological (galinstan-based), and infrared thermometers, as well as infrared thermography, have emerged for veterinary use. This study aimed to evaluate the accuracy and agreement of these alternatives compared to the mercury thermometer for measuring body temperature in cattle. Twenty-four clinically healthy or stable cattle were monitored twice daily over five consecutive days. Rectal temperatures were recorded using mercury, digital, and ecological thermometers. Infrared thermometers and thermographic cameras were used to assess cutaneous temperatures at the forehead, eyes, axillae, and perineum. Correlation analyses (Pearson or Spearman) and Bland–Altman plots were applied to determine agreement. Infrared thermography and infrared thermometer measurements at the eyes and perineum exhibited the highest correlations but failed to meet clinical agreement standards. In contrast, both ecological and digital thermometers showed strong correlation (<i>r</i> ≥ 0.85) and acceptable agreement limits with the mercury thermometer (mean difference &lt; 0.3&#xa0;°C; SD &lt; 0.5&#xa0;°C), indicating their suitability as substitutes in clinical practice. Despite the promise of infrared techniques for non-invasive screening, further validation is needed before clinical implementation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comparative evaluation of thermography, infrared, mercury, digital, and ecological thermometers for body temperature measurements in cattle

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月12日

查看全文
  • Ana Carolina Pinheiro,
  • Rodrigo Siuffi Abbud,
  • Kelly Grayce Perestrelo,
  • Jennifer Evangelista de Amorim,
  • Julia Marques Nascimento Freitas,
  • Maria Claudia Araripe Sucupira

摘要

Following the global ban on mercury thermometers due to their toxicological risks, alternative devices such as digital, ecological (galinstan-based), and infrared thermometers, as well as infrared thermography, have emerged for veterinary use. This study aimed to evaluate the accuracy and agreement of these alternatives compared to the mercury thermometer for measuring body temperature in cattle. Twenty-four clinically healthy or stable cattle were monitored twice daily over five consecutive days. Rectal temperatures were recorded using mercury, digital, and ecological thermometers. Infrared thermometers and thermographic cameras were used to assess cutaneous temperatures at the forehead, eyes, axillae, and perineum. Correlation analyses (Pearson or Spearman) and Bland–Altman plots were applied to determine agreement. Infrared thermography and infrared thermometer measurements at the eyes and perineum exhibited the highest correlations but failed to meet clinical agreement standards. In contrast, both ecological and digital thermometers showed strong correlation (r ≥ 0.85) and acceptable agreement limits with the mercury thermometer (mean difference < 0.3 °C; SD < 0.5 °C), indicating their suitability as substitutes in clinical practice. Despite the promise of infrared techniques for non-invasive screening, further validation is needed before clinical implementation.