NISHI, S. M.; RICHTZENHAIN, L. J.; GENNARI, S. M. Serum IgG level in calves experimentally infected with Haemonchus placei. Brazilian Journal of Veterinary Research and Animal Science, [S. l.], v. 39, n. 2, p. 107-110, 2002. DOI: 10.1590/S1413-95962002000200010. Disponível em: https://www.revistas.usp.br/bjvras/article/view/5990. Acesso em: 31 may. 2023.