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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

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Author(s):
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]
Total Authors: 8
Affiliation:
[1] FMU, Programa Posgrad Saude Ambiental, Ctr Univ, Sao Paulo, SP - Brazil
[2] IB, Sao Paulo, SP - Brazil
[3] UPD, Itapeva, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: SEMINA-CIENCIAS AGRARIAS; v. 39, n. 5, p. 2281-2286, 2018.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 09/09175-2 - Porcine circovirus type 2 (PCV2): comparative pathology between subtype A and B and the effect on the performance of experimentally infected swine
Grantee:Alessandra Marnie Martins Gomes de Castro
Support Opportunities: Scholarships in Brazil - Young Researchers
FAPESP's process: 11/00054-8 - EXPERIMENTAL INOCULATION OF PCV2 IN MICE CH3 / ROCKFELLER WITH 21 DAYS OLD: VIRAL DISTRIBUTION AND DYNAMICS BY FECES ELIMINATION.
Grantee:Katarina Baumgartner Yamada
Support Opportunities: Scholarships in Brazil - Scientific Initiation