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Abstract

Biofilm formation is considered to be a selective advantage for Staphylococcus aureus mastitis isolates by facilitating bacterial persistence in the udder. It requires attachment to mammary epithelium, proliferation and accumulation of cells in multilayers. The objective of this study was to...

Author(s)
Melo, P. de C.; Ferreira, L. M.; Nader Filho, A.; Zafalon, L. F.; Vicente, H. I. G.; Souza, V. de
Publisher
Sociedade Brasileira de Microbiologia, São Paulo, Brazil
Citation
Brazilian Journal of Microbiology, 2013, 44, 1, pp 119-124
Abstract

Biofilm formation is considered an advantage for Staphylococcus aureus mastitis isolates, facilitating bacterial persistence in the udder. It requires attachment to mammary epithelium, proliferation and accumulation of cells in multilayers and enclosing in a polymeric matrix known as...

Author(s)
Melo, P. de C.; Ferreira, L. M.; Nader Filho, A.; Zafalon, L. F.; Vicente, H. I. G.
Publisher
Universidade Federal de Uberlândia, Uberlândia, Brazil
Citation
Bioscience Journal, 2012, 28, 1, pp 94-99
Abstract

Staphylococcus is an important agent of mastitis, especially when biofilm producers are related to a number of mechanisms of resistance to different types of infections. The objective of this research was to evaluate the susceptibility and resistance of Staphylococcus aureus strains isolates from...

Author(s)
Chagas, L. G. da S.; Melo, P. de C.; Lima, A. M. C.; Ramos, G. B.; Röder, D. von D. de B.; Nader Filho, A.
Publisher
Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil
Citation
Brazilian Journal of Veterinary Research and Animal Science, 2015, 52, 3, pp 228-233
AbstractFull Text

The aim of this study is to determine the occurrence of Staphylococcus aureus strains in dairy herds of Minas Gerais, Brazil. 36 cows were used in this study and milk samples from the cows were subjected to California Mastitis Test. The strains of Staphylococcus were then subjected for genetic...

Author(s)
Souza, V. de; Cereser, N. D.; Melo, P. de C.; Conde, S. de O.; Medeiros, M. I. M. de; Nader Filho, A.
Publisher
Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, Brazil
Citation
Veterinária e Zootecnia, 2013, 20, 2, Supl. 1, pp 100-101
Abstract

The epidemiological relationships between isolated Staphylococcus aureus strains in milk samples of dairy cows, reagent to California Mastitis Test, individual and group milk was demonstrated in different sites of the production fluxogram, in 12 milk-producing farms in the Gameleira region,...

Author(s)
Souza, V.; Nader Filho, A.; Melo, P. de C.; Ferraudo, G. M.; Ferraudo, A. S.; Conde, S. de O.; Fogaça Junior, F. A.
Publisher
Sociedade Brasileira de Microbiologia, São Paulo, Brazil
Citation
Brazilian Journal of Microbiology, 2012, 43, 4, pp 1646-1650
Abstract

The purpose of this study was to determine the in-vitro susceptibility pattern of 72 Staphylococcus aureus strains, isolated from bovine mastitic milk. The calves were reared on 10 dairy farms in the state of São Paulo, Brazil. These strains were tested by the standardized disc diffusion method....

Author(s)
Nader Filho, A.; Ferreira, L. M.; Amaral, L. A. do; Rossi Junior, O. D.; Oliveira, R. P.
Publisher
Instituto Biológico, São Paulo, Brazil
Citation
Arquivos do Instituto Biológico (São Paulo), 2007, 74, 1, pp 1-4
AbstractFull Text

The relationship between somatic cells count (SCC) and the parities from cows with bovine mastitis caused by Staphylococcus aureus, in different breeds and climates was investigated. A dairy herd with Holstein and Brown Swiss cattle was studied from August/2005 to December/2006. The animals were...

Author(s)
Zafalon, L. F.; Arcaro, J. R. P.; Nader Filho, A.; Veschi, J. L. A.
Publisher
Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, Brazil
Citation
Veterinária e Zootecnia, 2010, 17, 3, pp 379-386
Abstract

The present study assessed the protein fractions of the milk in 135 mammary quarters with subclinical mastitis caused by Staphylococcus aureus. The quarters were classified in two groups: treated (67) and not treated (68). The antimicrobial drug used for the treatment was gentamicin (150 mg) once a ...

Author(s)
Zafalon, L. F.; Nader Filho, A.; Carvalho, M. R. B. de; Lima, T. M. A. de
Publisher
Instituto Biológico, São Paulo, Brazil
Citation
Arquivos do Instituto Biológico (São Paulo), 2009, 76, 2, pp 149-155
Abstract

The objective of the present study was to evaluate the occurrence of Staphylococcus aureus in milk produced in 37 farms located in the regions of Ribeirão Preto and São Carlos, state of São Paulo, Brazil. Two-hundred and eight samples of milk from individual cows showing subclinical mastitis, and...

Author(s)
Fagundes, H.; Barchesi, L.; Nader Filho, A.; Ferreira, L. M.; Oliveira, C. A. F.
Publisher
Sociedade Brasileira de Microbiologia, São Paulo, Brazil
Citation
Brazilian Journal of Microbiology, 2010, 41, 2, pp 376-380
Abstract

77 Staphylococcus aureus strains isolated from milk samples obtained from 40 Holstein cows suffering from subclinical mastitis in a dairy herd in Sao Paulo, Brazil were subjected to PCR-ribotyping and in vitro susceptibility testing to 12 antimicrobial drugs. PCR-ribotyping revealed nine different...

Author(s)
Ferreira, L. M.; Nader Filho, A.; Oliveira, E. de; Zafalon, L. F.; Souza, V. de
Publisher
Centro de Ciências Rurais, Universidade Federal de Santa Maria, Santa Maria, Brazil
Citation
Ciência Rural, 2006, 36, 4, pp 1228-1234

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