Seroprevalence and intercurrence of reproductive pathogens in cattle from family farms in North of Minas Gerais, Brazil oleh Dionei Joaquim Haas, Jonata de Melo Barbieri, Ermilton Junio Pereira de Freitas, Mayra da Silva Oliveira, Bernardo Rodrigues Porto, Rogério Oliveira Rodrigues, Marcos Bryan Heinemann, Anna Christina de Almeida, Zélia Inês Portela Lobato, Elaine Maria Seles Dorneles, Andrey Pereira Lage