CHALLENGES IN FETAL SEX DETERMINATION BY ULTRASONOGRAPHY IN CATTLE: THE GESTATIONAL PERIOD FACTOR AND DIAGNOSTIC WINDOW. International Seven Journal of Multidisciplinary, [S. l.], v. 5, n. 2, p. e9500, 2026. DOI: 10.56238/isevmjv5n2-005. Disponível em: https://sevenpubl.com.br/ISJM/article/view/9500. Acesso em: 4 mar. 2026.