Brogni, Cláudio Francisco, et al. “Equine Chorionic Gonadotrophin (eCG) After Weaning in Reproductive Performance of Sows from Distinct Parturition Order”. Revista Acadêmica Ciência Animal, vol. 18, outubro de 2020, p. 1-10, doi:10.7213/2596-2868.2020.18015.