“…Under heat stress, animals change their behavior to reduce the amount of endogenous heat produced and promote heat loss (Schütz, Rogers, Cox, Webster, & Tucker, 2011). Thus, the daily grazing time is reduced, while the time spent for resting and drinking water increases (Perissinotto, Moura, Silva, & Matarazzo, 2005;Silva et al, 2009). Reduction in grazing activity decreases dry matter intake, with negative effects on body weight gain, milk yield, and reproductive efficiency, leading to economic losses resulting from such less than optimal herd performance (Almeida, Pandorfi, Guiselini, Henrique, & Almeida, 2011;Soren, 2012;Mellado et al, 2016).…”