Role of early pregnancy diagnosis by means of ultrasonography in improving reproductive efficiency in a dairy herd: A retrospective study. The Bovine Practitioner, [S. l.], v. 33, n. 1, p. 67–69, 1999. DOI: 10.21423/bovine-vol33no1p67-69. Disponível em: https://bovine-ojs-tamu.tdl.org/bovine/article/view/1600. Acesso em: 22 nov. 2024.