Tecnologias aplicadas ao monitoramento de parâmetros fisiológicos na produção de ruminantes

The objective was to review the main technologies in ruminant production for measuring respiratory rate (RR), heart rate (HR) and body temperature (BT). Physiological changes may indicate imbalance of vital body functions, so identifying their cause is crucial for early and assertive decision making. The use of technology aids in remote and continuous monitoring of the animals. The main technologies used for HR and RR were motion and optic sensors, such as those based on photoplethysmography, visible spectrum imaging or thermography (TIV). For body temperature the main technologies used are TIV and sensors (thermometers and thermocouples) for body and room temperature. It is concluded that the application of the technologies allows a greater volume of data while maintaining animal welfare.