“Use of Equine Chorionic Gonadotropin (eCG) in Mashona Heifers, under a J-Synch Synchronization Protocol, and Its Effect in Pregnancy Rate: Use of Equine Chorionic Gonadotropin in a J-Synch Protocol in Heifers”. Agro Productividad, May 2023, https://doi.org/10.32854/agrop.v16i3.2387.