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Dive into the research topics where Agostinho Ludovico is active.

Publication


Featured researches published by Agostinho Ludovico.


Veterinary Microbiology | 2015

Diversity of Shiga toxin-producing Escherichia coli in sheep flocks of Paraná State, southern Brazil

Fernando H. Martins; Beatriz E. C. Guth; Roxane M.F. Piazza; Sylvia Cardoso Leão; Agostinho Ludovico; Marilúcia Santos Ludovico; Ghizlane Dahbi; Juan Marzoa; Azucena Mora; Jorge Blanco; Jacinta Sanchez Pelayo

Sheep constitute an important source of zoonotic pathogens as Shiga toxin-producing Escherichia coli (STEC). In this study, the prevalence, serotypes and virulence profiles of STEC were investigated among 130 healthy sheep from small and medium farms in southern Brazil. STEC was isolated from 65 (50%) of the tested animals and detected in all flocks. A total of 70 STEC isolates were characterized, and belonged to 23 different O:H serotypes, many of which associated with human disease, including hemolytic-uremic syndrome (HUS). Among the serotypes identified, O76:H19 and O65:H- were the most common, and O75:H14 and O169:H7 have not been previously reported in STEC strains. Most of the STEC isolates harbored only stx1, whereas the Stx2b subtype was the most common among those carrying stx2. Enterohemolysin (ehxA) and intimin (eae) genes were detected in 61 (87.1%) and four (5.7%) isolates, respectively. Genes encoding putative adhesins (saa, iha, lpfO113) and toxins (subAB and cdtV) were also observed. The majority of the isolates displayed virulence features related to pathogenesis of STEC, such as adherence to epithelial cells, high cytotoxicity and enterohemolytic activity. Ovine STEC isolates belonged mostly to phylogenetic group B1. PFGE revealed particular clones distributed in some farms, as well as variations in the degree of genetic similarity within serotypes examined. In conclusion, STEC are widely distributed in southern Brazilian sheep, and belonged mainly to serotypes that are not commonly reported in other regions, such as O76:H19 and O65:H-. A geographical variation in the distribution of STEC serotypes seems to occur in sheep.


Semina-ciencias Agrarias | 2012

Efeito do grupo racial e do número de lactações sobre a produtividade e a composição do leite bovino

Abel Mário dos Reis; Marcela de Rezende Costa; Renan Grecco Costa; Hélio Hiroshi Suguimoto; Cínthia Hoch Batista de Souza; Lina Casale Aragon-Alegro; Agostinho Ludovico; Elsa Helena Walter de Santana


Semina-ciencias Agrarias | 2015

Losses in milk production and quality due to milk somatic cell count and heat stress of Holsteins cows in temperate climate.

Agostinho Ludovico; Vinicius Buffon Maion; Dalton Evert Bronkhorst; Fabíola de Almeida Cristine Rego Grecco; Luiz Fernando Coelho da Cunha Filho; Ivone Yurika Mizubuti; Kelly Molin de Almeida; Marilúcia Santos Ludovico; Elsa Helena Walter de Santana


Semina-ciencias Agrarias | 2015

Development, economic viability and attributes of lamb carcass from confined animals fed on different amounts of crude glycerin.

Fabiola Cristine de Almeida Rego; Mônica Chaves Françozo; Agostinho Ludovico; Lisiane Dorneles de Lima; Flávio Guiselli Lopes; Laís Belan; Marcelo Diniz dos Santos; Marilice Zundt; Luiz Fernando Coelho da Cunha Filho; Camila Constantino


Semina-ciencias Agrarias | 2013

Effect of the racial group and number of lactation on the productivity and composition of bovine milk

Abel Mário dos Reis; Marcela de Rezende Costa; Renan Grecco Costa; Hélio Hiroshi Suguimoto; Cínthia Hoch Batista de Souza; Lina Casale Aragon-Alegro; Agostinho Ludovico; Elsa Helena Walter de Santana


Revista de Salud Animal | 2016

Evaluation of an electrical conductivity portable device as an alternative for subclinical mastitis detection

Ana Beatriz da Costa Ribeiro; Joice Sifuentes dos Santos; Daniel Zanol; Letícia Neves Leme Lombarde; Samera Rafaela Bruzaroski; Agostinho Ludovico; Elsa Helena Walter de Santana


Revista de Salud Animal | 2016

Evaluación del dispositivo portátil de la conductividad eléctrica como alternativa para la detección de mastitis subclínica

Ana Beatriz da Costa Ribeiro; Joice Sifuentes dos Santos; Daniel Zanol; Letícia Neves Leme Lombarde; Samera Rafaela Bruzaroski; Agostinho Ludovico; Elsa Helena Walter de Santana


Revista de Salud Animal | 2015

Relationship between somatic cell counts and milk production and composition in Jersey cows

Roberto Ramos Garcia; Vinicius Bufon Maion; Kelly Molin de Almeida; Elsa Helena Walter de Santana; Marcela de Rezende Costa; Rafael Fagnani; Agostinho Ludovico


Archive | 2015

Desempenho, viabilidade econômica e características de carcaça de cordeiros alimentados em confinamento com rações contendo diferentes teores de glicerina bruta

Mônica Chaves Françozo; Agostinho Ludovico; Lisiane Dorneles de Lima; Laís Belan; Marcelo Diniz dos Santos; Marilice Zundt; Luiz Fernando; Coelho da Cunha; Camila Constantino


Archivos Latinoamericanos de Producción Animal | 2014

Chemical composition and losses of nutrients involved in sugarcane ensiling with microbial and chemical additives.

Agostinho Ludovico; E. H. Hoshi; L. C. da Silva; F. C. de A. R. Grecco; L. F. C. da Cunha Filho; Michel Rodrigues Baran

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Joice Sifuentes dos Santos

Universidade Federal de Santa Maria

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Lisiane Dorneles de Lima

Empresa Brasileira de Pesquisa Agropecuária

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Laís Belan

Universidade Norte do Paraná

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Marcela de Rezende Costa

Federal University of Mato Grosso do Sul

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Marcelo Diniz dos Santos

Universidade Federal de Viçosa

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