Consulta: creatorFacets:"Pinheiro Júnior,José Wilton"
Registros recuperados: 4
Data/hora: 03/06/2024 01:28:34

Detection of Mycobacterium avium subsp. paratuberculosis in bovine milk from the state of Pernambuco, Brazil
Provedor de dados: Brazilian Journal of Microbiology
Autores: Albuquerque,Pedro Paulo Feitosa de; Santos,André de Souza; Souza Neto,Orestes Luiz de; Kim,Pomy de Cássia Peixoto; Cavalcanti,Erika Fernanda Torres Samico Fernandes; Oliveira,Júnior Mário Baltazar de; Mota,Rinaldo Aparecido; Pinheiro Júnior,José Wilton.
Abstract The aim of this study was to detect the IS900 region of Mycobacterium avium subsp. paratuberculosis (MAP) in bovine milk samples using real-time polymerase chain reaction (qPCR) and conventional PCR, and to study the agreement between these tests. A total of 121 bovine milk samples were collected from herds considered positive for MAP, from the State of Pernambuco, Brazil. MAP DNA was detected in 20 samples (16.5%) using conventional PCR and in 34 samples (28.1%) using qPCR. MAP DNA was detected in all of the 6 animal farms studied. Moderate agreement was found between qPCR and conventional PCR results, where the sensitivity and specificity of conventional PCR in relation to qPCR were 50% and 96.6%, respectively. Thus, the IS900 region of MAP was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Molecular biology; Diagnosis; Paratuberculosis; Milk.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000100113

Epidemiology of Mycoplasma agalactiae and Mycoplasma mycoides cluster in flocks of northeastern Brazil
Provedor de dados: Ciência Rural
Autores: Santos,Sandra Batista dos; Melo,Renata Pimentel Bandeira de; Silva,Luana Thamires Rapôso da; Oliveira,Júnior Mário Baltazar de; Abad,Atzel Candido Acosta; Pinheiro Júnior,José Wilton; Mota,Rinaldo Aparecido.
ABSTRACT: The present study aimed to investigate contagious agalactia (CA) in flocks from Pernambuco State. The study involved 225 goats and 63 ewes; 288 milk samples and 100 vaginal swabs were collected in total. The PCR assays were carried out using specific primers to Mycoplasma agalactiae and the Mycoplasma mycoides cluster. Among the goat’s milk samples,12.0% (27/225) were positive for Mycoplasma agalactiae DNA, while 5.3% (12/225) contained the Mycoplasma mycoides cluster. Of the vaginal swabs taken from goats, 15.4% (12/78) were positive for Mycoplasma agalactiae DNA and 3.8% (3/78) contained the Mycoplasma mycoides cluster. In the case of ewes, 4.3% (1/23) of the milk samples contained Mycoplasma agalactiae DNA, and 7.5% (3/40) were positive for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Contagious agalactia; Flocks; Diagnostic; Epidemiology; Risk factor.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018000400452

Indirect diagnostic tests for the detection of subclinical mastitis in dairy goats experimentally infected with Staphylococcus aureus
Provedor de dados: Ciência Rural
Autores: Peixoto,Rodolfo de Moraes; Araújo,Renata de Moraes Peixoto; Peixoto,Luciana Jatobá e Silva; Reges,Ariel Marques; Alves,Ana Paula Pereira; Pinheiro Júnior,José Wilton; Mota,Rinaldo Aparecido; Azevedo,Sérgio Santos; Costa,Mateus Matiuzzi da.
ABSTRACT: The aim of the present study was to assess two diagnostic techniques (California mastitis test (CMT) and the somatic cell count (SCC)) that can diagnose mastitis in dairy goats. Experimental infection was conducted using 20 mammary glands, a strain of  Staphylococcus aureus, an infectious dose of 1.2x108CFU mL-1 and a volume of 1mL per mammary gland. The CMT and the SCC were used to detect subclinical mastitis. Bacterial culture (BC) was performed immediately after milk collection and was used as the gold standard. Four experimental time points were established (0, 24, 48 and 72 hours post-inoculation). Analysis of the ROC curve confirmed that the best combination of sensitivity and specificity were obtained with a cutoff point of 405.5, 6030.0...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial culture; Intramammary infection; Small ruminant; Somatic cell count.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701217

Frequency of and risk factors associated to Leptospira spp. Seropositivity in goats in the state of Sergipe, Northeastern Brazil
Provedor de dados: Ciência Rural
Autores: Rizzo,Huber; Silva,Tatiane Rodrigues da; Carvalho,Jeferson Silva; Marinho,Felipe Apolônio; Santos,Hilderley de Almeida; Silva Júnior,Wellington Santos; Alemán,Mario Augusto Reyes; Pinheiro Júnior,José Wilton; Castro,Vanessa.
ABSTRACT: The objective of this study was to determine the frequency and factors associated with the occurrence of seropositivity for Leptospira spp. in goat herds in the state of Sergipe, Brazil, on the basis of the analysis of 675 samples collected from 41 properties in 2013-2014. Analysis of anti-Leptospira spp. antibodies revealed that 25.74% goats (194) were seropositive and that 90.24% (37) of the properties had at least one infected goat. The most prevalent serogroup was Icterohaemorrhagiae (85.57%); although, the study animals were reactive to other serogroups: Australis (5.15%), Pomona (3.61%), Sejroe (3.09%), and Pyrogenes (2.58%) had titers ≤400 in 96.91% of cases. The origin of the water source [still water source (OR=3.86)] was associated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Water source; Leptospirosis; Serogroup; Icterohaemorrhagiae; Test microscopic agglutination test.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700452