Intermittent elimination of Porcine Parvovirus 4 (PPV4) in naturally infected swine semen: first report

Autor(es)

Martins Gomes de Castro, Alessandra Marnie ^[1] ; Bersano, Josete Garcia ^[2] ; Feijo, Vanessa Aparecida ^[1] ; Ogata, Renato Akio ^[2] ; Nara, Julia Mitico ^[2] ; Faria de Oliveira, Joao Edson ^[3] ; Vicente de Oliveira, Roberto Carlos ^[3] ; Baldisseri Junior, Flavio Aparecido ^[1]

Afiliação do(s) autor(es)

^[1] FMU, Programa Posgrad Saude Ambiental, Ctr Univ, Sao Paulo, SP - Brazil

^[2] IB, Sao Paulo, SP - Brazil

^[3] UPD, Itapeva, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SEMINA-CIENCIAS AGRARIAS; v. 39, n. 5, p. 2281-2286, 2018.
• Citações Web of Science: 0

Resumo

Porcine parvovinis 4 (PPV4) has been reported in several countries and the high rate of concurrent PCV2 infection with PPV4 may trigger the ``porcine circovinis disease{''} (PCVD). This has awakened the interest in how PPV4 virus behaves. The aim of this study was to show that, like other swine viruses, the elimination of PPV4 in semen is intermittent. The study was conducted in the Unidade de Pesquisa e Desenvolvimento de Itapeva da Agencia Paulista de Tecnologia dos Agronegocios Regional (Apta Regional). Over a period of six months four boars were monitored and the semen was collected every 10 days. totalizing 74 semen samples. Through PCR testing, PPV4 was detected in 32/74 (43.2%) semen samples. Three sequences of 284 nt, showed identity varying from 98.2% to 100%, confirming the detection of the virus in all boars. Semen volume and sperm motility did not indicate significant difference between PPV4 positive or negative semen samples (p > 0.05). There was no significant difference between the monthly distributions of positive and negative samples. This is the first study showing intermittent shedding of PPV4 in naturally infected boars. Absence of typical clinical signs and/or influence in semen quantity was also observed. (AU)

• Processo FAPESP: 09/09175-2 - Circovírus suíno tipo 2 (PCV-2): patogenia comparada dos subtipos A e B e efeitos sobre o desempenho zootécnico de suínos experimentalmente infectados com amostras brasileiras
• Beneficiário: Alessandra Marnie Martins Gomes de Castro
• Modalidade de apoio: Bolsas no Brasil - Jovens Pesquisadores
• Processo FAPESP: 11/00054-8 - Inoculação experimental de pcv2 em camundongos ch3/ rockfeller aos 21 dias de idade: distribuição viral e dinâmica de eliminação pelas fezes.
• Beneficiário: Katarina Baumgartner Yamada
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Processo FAPESP: 07/57115-3 - Circovirus suíno tipo 2 (PCV-2): patogenia comparada dos subtipos A e B e efeitos sobre o desempenho zootécnico de suínos experimentalmente infectados com amostras brasileiras
• Beneficiário: Alessandra Marnie Martins Gomes de Castro
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores