Autor(es):
Saporiti, Viviane ; Martorell, Susanna ; Cruz, Taís F. [UNESP] ; Klaumann, Francini ; Correa-Fiz, Florencia ; Balasch, Mònica ; Sibila, Marina ; Segalés, Joaquim
Data: 2020
Identificador Persistente: http://hdl.handle.net/11449/200695
Origem: Oasisbr
Assunto(s): Intra-uterine infection; Mummified fetus; Porcine circovirus 3; Sow; Stillborn; Vertical transmission; Intra-uterine infection; Intra-uterine infection; Mummified fetus; Mummified fetus; Porcine circovirus 3; Porcine circovirus 3; Sow; Sow; Stillborn; Stillborn; Vertical transmission; Vertical transmission
Descrição
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Centres de Recerca de Catalunya
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
Porcine circovirus 3 (PCV-3) has been suggested as a putative causal agent of swine reproductive disease. A number of different studies have pointed out this association, but there is still a lack of information regarding the normal rates of PCV-3 infection in farms with normal reproductive parameters. The objective of the present study was to assess the frequency of PCV-3 detection in primiparous and multiparous sows and in tissues from their respective fetuses from farms with average reproductive parameters. Sera from 57 primiparous and 64 multiparous sows from 3 different farms were collected at two time points. Brain and lung tissues from 49 mummies and 206 stillborn were collected at farrowing. Samples were tested by PCR, and when positive, quantified by quantitative PCR. Thirty-nine complete genomes were obtained and phylogenetically analyzed. All sera from multiparous sows were negative, while 19/57 (33.3%) primiparous sows were PCV-3 PCR positive. From the 255 tested fetuses, 86 (33.7%) had at least one tissue positive to PCV-3. The frequency of detection in fetuses from primiparous sows (73/91, 80.2%) was significantly higher than those from multiparous ones (13/164, 7.9%). It can be concluded that PCV-3 is able to cause intrauterine infections in absence of overt reproductive disorders.
IRTA Centre de Recerca en Sanitat Animal (CReSA IRTA-UAB) Campus de la Universitat Autònoma de Barcelona, Bellaterra
OIE Collaborating Centre for the Research and Control of Emerging and Re-emerging Swine Diseases in Europe (IRTA-CReSA), Bellaterra
Zoetis Manufacturing & Research Spain S.L., Ctra. Camprodon s/n, La Riba
Department of Immunology and Microbiology Institute of Biosciences São Paulo State University (Unesp)
Departament de Sanitat i Anatomia Animals Universitat Autònoma de Barcelona (UAB)
UAB Centre de Recerca en Sanitat Animal (CReSA IRTA-UAB) Campus de la Universitat Autònoma de Barcelona, Bellaterra
Department of Immunology and Microbiology Institute of Biosciences São Paulo State University (Unesp)
FAPESP: 2017/26649-4
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria: E-RTA2017-00007-00-00
