Predicting rectal temperature and respiration rate responses in lactating dairy cows exposed to heat stress
Gan Li, Siyu Chen, Jian Chen, Peng Dandan, Xianhong Gu
Abstract
- 0.21 × RH - 2.82 × WS + 0.62 × MY; MRR in 1230-1400 h and 1830-2000 h were 4.6 and 10.3 bpm lower than that in 0630-0800 h, respectively (reducing the intercept of the expression in 0630-0800 h). Compared with temperature-humidity index equations, the proposed model performed better at suppressing prediction error, and had better sensitivity and accuracy in recognizing whether heat stress was triggered.
Topics & Concepts
RespirationRespiration rateRectal temperatureAnimal scienceHeat stressRelative humidityHerdHumidityChemistryBiologyBotanyMeteorologyPhysicsEffects of Environmental Stressors on LivestockThermoregulation and physiological responsesClimate Change and Health Impacts