Effect of hCG application at different moments of the estrous cycle on corpus luteum and uterine vascularization and serum progesterone concentration in mares - Alonso, Maria Augusta; Silva, Luciano Andrade; Affonso, Fernanda Jordão; Lemes, Kleber Menegon; Celeghini, Eneiva Carla Carvalho; Lançoni, Renata; Carvalho, Henrique Fulanetti; Arruda, Rubens Paes de (Animal Reproduction, 2019)