Effect of the follicular stage and circulating progesterone concentrations at the beginning of an estradiol/progesterone-based synchronization protocol on profile of gonadotropins and follicle dynamics in beef heifers - Silva, Lucas Oliveira e; Cavalcanti, Patrícia Rodrigues; Alves, Rodrigo Lemos Olivieri Rodrigues; Folchini, Natalia Picoli; Teixeira, Natália N; Monteiro, Pedro J. L; Wiltbank, Milo C; Sartori Filho, Roberto (Theriogenology, 2025)