| Full text | |
| Author(s): |
Aline Aparecida da Silva
[1]
;
Eliana Monteforte Cassaro Villalobos
[2]
;
Elenice Maria Sequetin Cunha
[3]
;
Maria do Carmo Custódio de Souza Hunold Lara
[4]
;
Alessandra Figueiredo de Castro Nassar
[5]
;
Rosa Maria Piatti
[6]
;
Vanessa Castro
[7]
;
Eliana Scarcelli Pinheiro
[8]
;
Aline Feola de Carvalho
[9]
;
Claudia Del Fava
[10]
Total Authors: 10
|
| Affiliation: | [1] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Anatomia Patológica - Brasil
[2] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Raiva e Encefalites - Brasil
[3] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Raiva e Encefalites - Brasil
[4] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Raiva e Encefalites - Brasil
[5] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Bacteriologia Geral - Brasil
[6] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Doenças Bacterianas da Reprodução - Brasil
[7] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Doenças Bacterianas da Reprodução - Brasil
[8] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Doenças Bacterianas da Reprodução - Brasil
[9] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Doenças Bacterianas da Reprodução - Brasil
[10] Instituto Biológico. Centro de Pesquisa de Sanidade Animal. Laboratório de Anatomia Patológica - Brasil
Total Affiliations: 10
|
| Document type: | Journal article |
| Source: | Arq. Inst. Biol.; v. 87, 2020-09-21. |
| Abstract | |
ABSTRACT Abortion and complications in reproduction are important causes of economic loss in horse breeding. Studies of its causal agents can help to identify the primary pathogens or other factors involved and define appropriate measures to reduce its occurrence. This research aimed to investigate the primary causes of equine abortion, stillbirth, and perinatal mortality in regions of Brazil. Tissue from aborted fetuses, stillbirths, neonates and foals submitted to the Biological Institute of São Paulo, Brazil, from January 2010 to July 2013 were processed for viral and bacterial isolation, polymerase chain reaction (PCR), histology, and immunohistochemistry. Bacterial infection was the primary detected cause of abortion, found in 16 of the 53 animals submitted for bacterial analysis followed by viruses analysis in 2 of 105 animals, and noninfectious causes (neonatal isoerythrolysis) in 2 of 105 animals. Fungi were found in a single sample of 53 tested. The most frequent bacteria recovered were Escherichia coli, Enterobacter aerogenes, combined E. coli and Streptococcus spp., Staphylococcus spp., and Bacillus spp. The following agents were each observed in a single sample: Arcanobacterium pyogenes, Streptococcus spp., Corynebacterium spp., Actinobacillus spp., and Rhodococcus equi. The predominant identification of fecal and other opportunistic bacteria as opposed to pathogens commonly associated with equine abortion, such as Leptospira spp. and equine herpesvirus type 1 (EHV-1), suggests the need of improving hygiene management of breeding mares to prevent bacterial infection that may cause fetal loss, stillbirth, and perinatal mortality. (AU) | |
| FAPESP's process: | 09/13864-8 - Use of bacteriological isolation, immunohistochemistry, PCR and histopathology by hematoxylin/eosin and Warthin-Starry stainning for the diagnosis of leptospirosis in aborted bovine fetuses |
| Grantee: | Claudia Del Fava |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 12/00277-0 - Leptospira and equine herpesvirus equino-1 as casual agents of equine abortion |
| Grantee: | Claudia Del Fava |
| Support Opportunities: | Regular Research Grants |