Stress and thermal comfort indexes associated with physiological parameters and energy status in Girolando cows raised on pasture in the tropical savannah ; Índices de estrés y confort térmico asociados a parámetros fisiológicos y perfil energético en las vacas Girolando criadas en pastos de la sabana tropical ; Índices de estresse e conforto térmico associados aos parâmetros fisiológicos e perfil energético em vacas Girolando criadas a pasto na savana tropical

This longitudinal observational study was developed to describe thermal stress indexes, the physiological response, and the energy status in Girolando cows raised on pasture in the tropical savannah during the transition and voluntary waiting periods. Twenty Girolando cows were evaluated. The temperature and humidity index (UTI) and the globe temperature and humidity index (ITGU) were measured daily, and cows were assessed and submitted to blood collection at time intervals distributed among the three weeks before calving until the 60th day postpartum. Rectal Temperature, Heart Rate, and Respi... Mehr ...