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Abstract

Purpose. To address more information about changes in commensal Escherichia coli during virus intestinal infection, we characterized 30 faecal E. coli isolates from calves (21 to 60 days old) with diarrhea due to rotavirus and coronavirus, which received, before diagnosis, tetracycline, gentamicin...

Author(s)
Maciel, J. F.; Matter, L. B.; Tasca, C.; Scheid, D. A. R.; Gressler, L. T.; Ziech, R. E.; Vargas, A. C. de
Publisher
Microbiology Society, London, UK
Citation
Journal of Medical Microbiology, 2019, 68, 3, pp 000937
Abstract

Cases of cranial superficial epigastric vein (CSEV) phlebitis with subsequent septicemia were observed in dairy farms in Minas Gerais, Brazil. Autopsy on 4 affected cows, from 2 farms, revealed CSEV thrombophlebitis with perivascular abscesses, pulmonary abscesses, valvular endocarditis, arthritis, ...

Author(s)
Gonzaga, D. R. N.; Rissi, D. R.; Lages, D. H.; Carvalho, A. U.; Filho, E. F.; Meneses, R. M.; Pierezan, F.
Publisher
Sage Publications, Thousand Oaks, USA
Citation
Journal of Veterinary Diagnostic Investigation, 2019, 31, 4, pp 554-556
Abstract

Escherichia coli present the ampC naturally, and the observation of phenotypical resistance to cefoxitin is related to this gene deregulation. Mutations in the regulatory region in ampC cause exaggerated expression. The most frequent alterations in the E. coli AmpC promoter/attenuator leading to...

Author(s)
Santiago, G. S.; Coelho, I. da S.; Farias, B. O. de; Alencar, T. A. de; Moreira, A. B.; Bronzato, G. F.; Souza, M. M. S. de; Castro, B. G. de; Ferreira Neto, H.; Coelho, S. de M. de O.
Publisher
Academic Journals, Lagos, Nigeria
Citation
African Journal of Microbiology Research, 2019, 13, 25, pp 388-391
Abstract

The Zona da Mata of Minas Gerais has a specialized goat milk production chain. Goat milk is superior in quality compared with milk of other domestic species, and the demand for milk and milk products for the public has increased. Data on dairy goat breeding in Minas Gerais are scarce and relatively ...

Author(s)
Lima, M. C.; Souza, M. C. C.; Espeschit, I. F.; Maciel, P. A. C. C.; Sousa, J. E.; Moraes, G. F.; Ribeiro Filho, J. D.; Moreira, M. A. S.
Publisher
Colégio Brasileiro de Patologia Animal, Rio de Janeiro, Brazil
Citation
Pesquisa Veterinária Brasileira, 2018, 38, 9, pp 1742-1751
Abstract

Serological testing and culling infected animals are key management practices aiming eradication of bovine leukemia virus infection. Here, we report the development of an indirect ELISA based on BLV recombinant capsid protein (BLVp24r) to detect anti-BLV antibodies in cattle serum. The BLVp24r was...

Author(s)
Andreolla, A. P.; Erpen, L. M. S.; Frandoloso, R.; Kreutz, L. C.
Publisher
Sociedade Brasileira de Microbiologia, São Paulo, Brazil
Citation
Brazilian Journal of Microbiology, 2018, 49, Suppl. 1, pp 68-75
Abstract

This study evalueted the prevalence of Staphylococcus aureus, Streptococcus agalactiae and Escherichia coli in milk samples from 257 goats (513 half-udders) and ten bulk tanks, from ten dairy goat farms of São Paulo State, Brazil, by multiplex-PCR. The samples were screened by microbiological...

Author(s)
Machado, G. P.; Silva, R. C.; Guimarães, F. F.; Salina, A.; Langoni, H.
Publisher
Colégio Brasileiro de Patologia Animal, Rio de Janeiro, Brazil
Citation
Pesquisa Veterinária Brasileira, 2018, 38, 7, pp 1358-1364
Abstract

Botulism is a potentially fatal intoxication caused by botulinum neurotoxins (BoNTs) produced mainly by Clostridium botulinum. Vaccination against BoNT serotypes C and D is the main procedure to control cattle botulism. Current vaccines contain formaldehyde-inactivated native BoNTs, which have a...

Author(s)
Moreira Júnior, C.; Ferreira, M. R. A.; Cunha, C. E. P. da; Donassolo, R. A.; Finger, P. F.; Moreira, G. M. S. G.; Otaka, D. Y.; Sousa, L. A. de; Barbosa, J. D.; Moreira, Â. N.; Salvarani, F. M.; Conceição, F. R.
Publisher
MDPI AG, Basel, Switzerland
Citation
Toxins, 2018, 10, 10, pp 381
AbstractFull Text

This paper reports on a case of emphysematous granulomatous submucosal rumenitis in a 2.5-year-old feedlot Nellore steer that presented reduction on daily weight gain. Rumen fragments of a 2.5-year-old Nellore steer were submitted for histopathological evaluation at the Sector of Pathological...

Author(s)
Rocha, J. F.; Daoualibi, Y.; Lorenzo, C. de; Pires, A. P. de C.; Brito, M. de F.; Souza, V. C. de; Malafaia, P.; Ubiali, D. G.
Publisher
Universidade Federal do Rio Grande do Sul, Faculdade de Veterinária, Porto Alegre, Brazil
Citation
Acta Scientiae Veterinariae, 2018, 46, Supplement, pp 266
AbstractFull Text

This study determined the distribution of stx1 and stx2 genes in Escherichia coli isolated from dairy herds with regard to animal age, season, and farm production-scale, and analyzed the phylogenetic distribution of the groups A, B1, B2, and D of 276 isolates of bovine feces Shiga toxin-producing ...

Author(s)
Ferreira, M. R. A.; Stella, A. E.; Freitas Filho, E. G.; Silva, T. S.; Nascimento, K. A.; Pinto, J. F. N.; Dias, M.; Moreira, C. N.
Publisher
FEPMVZ - Editora, Belo Horizonte, Brazil
Citation
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2018, 70, 6, pp 1807-1813
Abstract

The objectives of this study were to characterize the pathogen frequency and severity of clinical mastitis (CM) in 20 dairy herds of southeastern Brazil; and to determine the incidence rate of clinical mastitis (IRCM; overall and based on specific-pathogen groups) based on quarter time at risk and...

Author(s)
Tomazi, T.; Ferreira, G. C.; Orsi, A. M.; Gonçalves, J. L.; Ospina, P. A.; Nydam, D. V.; Moroni, P.; Santos, M. V. dos
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2018, 161, pp 9-18

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