Factors affecting age at first calving in purebred Jersey cows of specialized dairy farms in Costa Rica. Ciencias veterinarias, [S. l.], v. 29, n. 1, p. 7–19, 2014. Disponível em: https://www.revistas.una.ac.cr/index.php/veterinaria/article/view/5958.. Acesso em: 21 nov. 2024.