Physiological and biochemical responses and hydration status in equines after two barrel racing courses oleh Cláudio L.N. Gomes, Andressa M. Alves, José D. Ribeiro Filho, Felipe J. Moraes Júnior, Raimundo A. Barreto Júnior, Rodrigo S. Fucuta, Bruna M. Ribeiro, Leandro M. Miranda