VIANA, Carlos Henrique Cabral; SILVEIRA, Paulo Roberto Souza da; MORETTI, Anibal Sant’Anna; RODRIGUES, Paulo Henrique Mazza. Relationships between the characteristics weaning-to-estrus interval, estrus duration and moment of ovulation by ultrasonography in sows. Brazilian Journal of Veterinary Research and Animal Science, São Paulo, Brasil, v. 36, n. 4, p. 212–218, 1999. DOI: 10.1590/S1413-95961999000400008. Disponível em: https://www.revistas.usp.br/bjvras/article/view/5749.. Acesso em: 6 may. 2024.