Effect of Synchronization Protocols on Timing and Duration of Estrus in Nubian Goats. University of Khartoum Journal of Agricultural Sciences, [S. l.], v. 17, n. 1, 2025. Disponível em: https://onlinejournals.uofk.edu/uofkjas/article/view/1999. Acesso em: 25 مايو. 2026.