14 documents found, page 1 of 2
Isolation and genotyping of Clostridium perfringens from goats in Minas Gerais,...
Santana, Jordana Almeida; Ferreira, Ana Carolina de Andrade; Souza, Marina de Castro Campos de; Moreira, Maria Aparecida Scatamburlo; Lima, Magna CoroaDespite the known importance of Clostridium perfringens as an enteropathogen in small ruminants, little is known about the role of its additional virulence factors or the frequency of the various C. perfringens genotypes in healthy goats; this complicates the laboratory diagnosis of the infections caused by this microorganism. In light of this, the aim of the present study was to isolate and genotype C. perfrin...
Molecular typing of Mycobacterium avium subsp. paratuberculosis (MAP) isolated ...
Souza, Marina de Castro Campos de; Lima, Magna Coroa; Braga, Isis de Freitas Espeschit; Schwarz, David Germano Gonçalves; Rodrigues, Ana Paula de SouzaIn the last decade there was a significant increase dairy goat participation in the world and Brazilian agricultural scenario. Minas Gerais state is the third largest producer of goat milk in Brazil. Paratuberculosis is a chronic intestinal disease that mostly affects ruminants and can become a public health problem due to the possible association with Crohn's disease. It is transmitted by ingesting Mycobacteri...
Antimicrobial and synergistic activity of 2, 2', 4- trihydroxybenzophenone agai...
Aranda, Martha Isabel Realpe; Gómez, Gabriel Andres Tafur; Barros, Mariana de; Santos, Marcelo Henrique dos; Oliveira, Leandro Licursi deIn poultry farming, the spread of bacterial pathogens results in disease outbreaks causing significant economic losses to this industry. Many of these pathogenic bacteria are zoonotic and have a substantial impact on public health. Antimicrobials are essential for the prevention and treatment of these bacterial infections. However, the indiscriminate use of these agents provides favorable conditions for selecti...
Polymorphism analysis of the apxIA gene of Actinobacillus pleuropneumoniae sero...
Santos, Lucas Fernando dos; Polveiro, Richard Costa; Moreira, Thalita Scatamburlo; Vidigal, Pedro Marcus Pereira; Chang, Yung-FuThe bacterium Actinobacillus pleuropneumoniae is the etiological agent of Contagious Porcine Pleuropneumonia, a disease responsible for economic losses in the swine industry worldwide. A. pleuropneumoniae is capable of producing proteinaceous exotoxins responsible for inducing hemorrhagic lesions, one of which is ApxI. Few studies have conducted an in-depth evaluation of polymorphisms of the nucleotides that ma...
Antimicrobial activity of autoclaved and non autoclaved copaiba oil on Listeria...
Pieri, Fábio Alessandro; José, Raphaela Mansur; Galvão, Newton Nascentes; Nero, Luis Augusto; Moreira, Maria Aparecida ScatamburloOs objetivos deste estudo foram avaliar o efeito antimicrobiano de diferentes concentrações de óleo de copaíba contra o crescimento de Listeria monocytogenes e analisar as diferenças na inibição do microorganismo com soluções do óleo autoclavadas e não autoclavadas. Para tanto, foi realizado um teste de difusão em ágar, com seis isolados do microrganismo originários de produtos cárneos, seis concentrações de am...
Risk factors for human Mycobacterium bovis infections in an urban area of Brazil
Moreira, Maria Aparecida Scatamburlo; Silva, Marcio Roberto; Rocha, Adalgiza da Silva; Araújo, Flábio Ribeiro; Fonseca-Júnior, Antônio AugustoThe World Health Organization (WHO) has classified human zoonotic tuberculosis (TB) due to Mycobacterium bovis as a neglected issue in the developing world. In a recent cross-sectional study in Brazil, three of 189 TB patients presented with a coinfection of M. bovis and M. tuberculosis and were selected as cases for this study.The aim was to evaluate risk factors (RF) for zoonotic TB in an urban area of Brazil...
Increase in biofilm formation by Escherichia coli under conditions that mimic t...
Costa, João Carlos Miguel; Espeschit, Isis de Freitas; Pieri, Fábio Alessandro; Benjamin, Laércio Anjos; Moreira, Maria Aparecida ScatamburloBiofilmes bacterianos estão envolvidos no agravamento e recorrência de mastite clínica em rebanhos leiteiros. Vários fatores, tais como o pH, temperatura, concentração de O2 e glicose podem afetar sua indução e suas taxas de crescimento. Neste estudo, a produção de biofilme foi demonstrada por 27 isolados de Escherichia coli de mastite bovina a valores de pH diferentes, dependendo da disponibilidade de glucose,...
Distribution of infectious bronchitis virus strains in different organs and evi...
Pereira, Claiton Gonçalves; Saraiva, Giuliana Loreto; Vidigal, Pedro Marcus Pereira; Fietto, Juliana Lopes Rangel; Bressan, Gustavo CostaOn the basis of partial sequencing of the infectious bronchitis virus (IBV) S1 gene, this study investigated the molecular diversity of the virus in two life periods of a batch of breeding hens at the field level. The chicks were vaccinated against IBV on the second day of life with the vaccine Ma5, but at the age of 18 days, they exhibited clinical signs and macroscopic lesions compatible with avian infectious...
Antibodies against Bovine herpesvirus 1 in dairy herds in the state of Espirito...
Santos, Marcus Rebouças; Ferreira, Hanna Carolina Campos; Santos, Marcos Antônio dos; Saraiva, Giuliana Loreto; Tafuri, Natália FilardiO herpesvírus bovino 1 (Bovine herpesvirus 1 - BoHV-1) causa grandes prejuízos econômicos à pecuária bovina mundial, por comprometer os sistemas respiratório e reprodutivo de bovinos de corte e leiteiros. Nas últimas décadas, os registros de casos clínicos ocasionados pelo BoHV-1, no Brasil, mostram que têm aumentado gradualmente, o que torna importante o delineamento de estudos que mostrem a distribuição da in...
Genetic evaluation of IS900 partial sequence of Mycobacterium avium subsp. para...
Carvalho, Isabel Azevedo; Silva, Victor Oliveira; Vidigal, Pedro Marcus Pereira; Silva Junior, Abelardo; Moreira, Maria Aparecida ScatamburloMycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of paratuberculosis. Insertion sequence IS900 is used for the identification of MAP. The objective of this study was to verify the genetic conservation of IS900 sequences in raw milk samples. To evaluate genetic conservation, 206 quarter milk samples and 16 bulk-tank milk samples were collected. DNA extraction and IS900 PCR were performed ...