PESQUISA VETERINÁRIA BRASILEIRA

Abstract in English:

ABSTRACT.- Ribeiro M.G., Belotta A.F., Fernandes M.C., Guena R., Nardi Júnior G., Lara G.H.B., Giuffrida R. & Zamprogna T.O. 2011. [Fine needle aspiration in diagnosis of lymphadenitis in sheep.] Citologia aspirativa no diagnóstico da linfadenite em ovinos. Pesquisa Veterinária Brasileira 31(10):839-843. Departamento de Higiene Veterinária e Saúde Pública, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Cx. Postal 560, Botucatu, SP 18618-970, Brazil. E-mail: mgribeiro@fmvz.unesp.br The fine needle aspiration in diagnosis of lymphadenitis in sheep, and occurrence of microorganisms in the lymph nodes, with emphasis to identification of Corynebacterium pseudotuberculosis were investigated. One hundred sheep with lymphadenitis and 100 lymph nodes without lesions collected from sheep in slaughterhouses were evaluated. C. pseudotuberculosis (73.0%), Arcanobacterium pyogenes (6.0%), Streptococcus spp. Beta hemolytic (5.0) and Escherichia coli (4.0%) were the more frequent causal agents in sheep with lymphadenitis. Streptococcus spp. (21.0%) and Staphylococcus spp. (7.0%) were the more common microorganisms identified in lymph nodes without lesions sampled in slaughterhouse. Fine needle aspiration enable identify 79 (79.0%) microorganisms with “corynebacteria” aspect in sheep with lymphadenitis. From these, 73 (73.0%) were identified as C. pseudotuberculosis. None strain of C. pseudotuberculosis was isolated from lymph nodes of animals without lesions. The results showed the high frequency of C. pseudotuberculosis in sheep with lymphadenitis, and possibility the use of fine needle aspiration in initial diagnosis of lymphadenitis in sheep.

• Corynebacterium pseudotuberculosis lymphadenitis linfadenite

Abstract in Portuguese:

RESUMO.- Ribeiro M.G., Belotta A.F., Fernandes M.C., Guena R., Nardi Júnior G., Lara G.H.B., Giuffrida R. & Zamprogna T.O. 2011. [Fine needle aspiration in diagnosis of lymphadenitis in sheep.] Citologia aspirativa no diagnóstico da linfadenite em ovinos. Pesquisa Veterinária Brasileira 31(10):839-843. Departamento de Higiene Veterinária e Saúde Pública, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Cx. Postal 560, Botucatu, SP 18618-970, Brazil. E-mail: mgribeiro@fmvz.unesp.br O presente estudo investigou o uso da citologia aspirativa com agulha fina no diagnóstico da linfadenite em ovinos e a ocorrência de microrganismos nos linfonodos com lesões, com ênfase no isolamento de Corynebacterium pseudotuberculosis. Foram utilizados 100 linfonodos de ovinos com aumento de volume sugestivos de linfadenite e 100 linfonodos de ovinos sem lesões, colhidos em abatedouro. C. pseudotuberculosis (73,0%), Arcanobacterium pyogenes (6,0%), Streptococcus spp. Beta hemolítico (5,0%) e Escherichia coli (4,0%) foram os microrganismos mais frequentes nos animais com linfadenite. Streptococcus spp. (21,0%) e Staphylococcus spp. (7,0%) foram as bactérias isoladas com maior frequência nos linfonodos sem lesões colhidos em abatedouro. A punção aspirativa com agulha fina permitiu identificar microrganismos “corineformes” em 79 (79,0%) animais com linfadenite e, destes, 73 (73,0%) foram identificados como C. pseudotuberculosis. Nenhuma linhagem de C. pseudotuberculosis foi isolada dos linfonodos dos animais sem lesões. Concluiu-se que C. pseudotuberculosis foi o microrganismo mais freqüente nos ovinos com linfadenite, e que a citologia aspirativa pode ser utilizada como método de triagem no diagnóstico da linfadenite caseosa ovina.

Abstract in English:

ABSTRACT.- Ribeiro M.G., Fernandes M.C., Paes A.C., Siqueira A.K., Pinto J.P.A.N. & Borges A.S. 2010. [Serotype characterization of Salmonella strains isolated from different affections in domestic animals.] Caracterização de sorotipos em linhagens do gênero Salmonella isoladas de diferentes afecções em animais domésticos. Pesquisa Veterinária Brasileira 30(2):155-160. Departamento de Higiene Veterinária e Saúde Pública, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp), Distrito de Rubião Júnior, Botucatu, SP 18618-000, Brazil. E-mail: mgribeiro@fmvz.unesp.br The serotype characterization, antimicrobial susceptibility profile, and clinical-epidemiological findings were evaluated in 53 Salmonella spp. strains isolated from 41 dogs, nine horses and three cattle presenting different clinical manifestations between 1997 at 2007. Salmonella Typhimurium (45.3%), Salmonella enterica (22.6%), Salmonella Enteritidis (7.5%), Salmonella enterica subsp. enterica 4,5,12i (5.7%), Salmonella Newport (5.7%), Salmonella Dublin (3.8%), Salmonella Agona (3.8%), Salmonella Glostrup (3.8%), Salmonella Saintpaul (1.8%) were the more common serotypes. Ciprofloxacin (100.0%), norfloxacin (100.0%) and gentamicin (100.0%) were more effective drugs while resistance of isolates was observed to ceftiofur (28.5%) and florfenicol (7.0%). The strains were isolated from animals with enteritis, urinary tract infections, septicaemia, pyometra, pneumonia and conjuntivits. The results showed the high frequency of Salmonella Typhimurium serotype in different animals studied. The study highlighted also the presence of serotypes in our animals that also have been identified in humans with salmonellosis.

• Salmonella sorotipos sensibilidade microbiana

Abstract in Portuguese:

RESUMO.- Ribeiro M.G., Fernandes M.C., Paes A.C., Siqueira A.K., Pinto J.P.A.N. & Borges A.S. 2010. [Serotype characterization of Salmonella strains isolated from different affections in domestic animals.] Caracterização de sorotipos em linhagens do gênero Salmonella isoladas de diferentes afecções em animais domésticos. Pesquisa Veterinária Brasileira 30(2):155-160. Departamento de Higiene Veterinária e Saúde Pública, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista Júlio de Mesquita Filho (Unesp), Distrito de Rubião Júnior, Botucatu, SP 18618-000, Brazil. E-mail: mgribeiro@fmvz.unesp.br Foram caracterizados os sorotipos, o perfil de sensibilidade microbiana e os achados clínico-epidemiológicos em 53 linhagens do gênero Salmonella isoladas de 41 cães, nove equinos e três bovinos, acometidos por diferentes manifestações clínicas entre 1997 e 2007. Salmonella Typhimurium (45,3%), Salmonella enterica (22,6%), Salmonella Enteritidis (7,5%), Salmonella enterica subsp enterica 4,5,12i (5,7%), Salmonella Newport (5,7%), Salmonella Dublin (3,8%), Salmonella Agona (3,8%), Salmonella Glostrup (3,8%), Salmonella Saintpaul (1,8%) foram os sorotipos encontrados. Ciprofloxacina (100,0%), norfloxacina (100,0%) e gentamicina (100,0%) foram os antimicrobianos mais efetivos, enquanto a maior resistência das linhagens foi observada para ceftiofur (28,5%) e florfenicol (7,0%). As linhagens foram isoladas de animais com enterite, infecção do trato urinário, septicemia, piometra, pneumonia e conjuntivite. Ressalta-se para o predomínio do sorovar Typhimurium nas diferentes manifestações da salmonelose nos animais. Destaca-se, também, a identificação de sorotipos nos animais que também são observados em casos de salmonelose em humanos.

Abstract in English:

ABSTRACT.- Ribeiro M.G., Geraldo J.S., Langoni H., Lara G.H.B., Siqueira A.K., Salerno T. & Fernandes M.C. 2008. [Pathogenic microorganisms, somatic cell count and drug residues evaluation in organic bovine milk.] Microrganismos patogênicos, celularidade e resíduos de antimicrobianos no leite produzido no sistema orgânico. Pesquisa Veterinária Brasileira 29(1):52-58. Disciplina de Enfermidades Infecciosas dos Animais, Departamento de Higiene Veterinária e Saúde Pública, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, SP 18618-000, Brazil. E-mail: mgribeiro@fmvz.unesp.br In last years increase the importance of milk quality and conditions of bovine milking. Simultaneously, increase the interest about organic milk and derivates. The aim of present study was investigate the milk pathogens, sensitivity and multiple drug resistance of isolates, somatic cell count and residues of drugs in milk, from cattle with and without mastitis, come from four little organic dairy farms in State of São Paulo, Brazil. Were used 148 cattle on the middle period of lactation. From these, two showed clinical mastitis, 72 subclinical mastitis and 74 without signs of mammary inflammation (control). Staphylococcus aureus (25.7%), Streptococcus spp. (21.4%), Corynebacterium bovis (12.9%), Streptococcus agalactiae (4.3%) and Staphylococcus spp (4,3%) were the more-frequent microorganisms isolated from animals with mastitis. Aspergillus spp. was isolated from one animal. Ceftiofur (95.2%), oxacillin (84.2%), gentamicin (76.3%) and cefoperazone (70.3%) were the more effective drugs. High resistance of isolates were found to penicillin (53.5%), ampicillin (41.6%) and neomycin (38.6%). Multiple drug resistance to three or more drug was observed in 40 (39.6%) isolates. Media of somatic cell count encountered in animals with mastitis and controls were 175,742.67cs/mL and 58,227.6 cs/mL, respectively. Antimicrobials residues in milk were detected in four (2.7%) animals. The present findings showed the low somatic cell count of animals, indicative of good quality of milk. However, pointed the need of control measures for contagious pathogens of bovine mastitis and more attention for prohibition of antimicrobial use in organic dairy farms.

• Organic milk mastitis bovine somatic cell count antimicrobials multiresistance

Abstract in Portuguese:

ABSTRACT.- Ribeiro M.G., Geraldo J.S., Langoni H., Lara G.H.B., Siqueira A.K., Salerno T. & Fernandes M.C. 2008. [Pathogenic microorganisms, somatic cell count and drug residues evaluation in organic bovine milk.] Microrganismos patogênicos, celularidade e resíduos de antimicrobianos no leite produzido no sistema orgânico. Pesquisa Veterinária Brasileira 29(1):52-58. Disciplina de Enfermidades Infecciosas dos Animais, Departamento de Higiene Veterinária e Saúde Pública, Faculdade de Medicina Veterinária e Zootecnia, Universidade Estadual Paulista, Botucatu, SP 18618-000, Brazil. E-mail: mgribeiro@fmvz.unesp.br In last years increase the importance of milk quality and conditions of bovine milking. Simultaneously, increase the interest about organic milk and derivates. The aim of present study was investigate the milk pathogens, sensitivity and multiple drug resistance of isolates, somatic cell count and residues of drugs in milk, from cattle with and without mastitis, come from four little organic dairy farms in State of São Paulo, Brazil. Were used 148 cattle on the middle period of lactation. From these, two showed clinical mastitis, 72 subclinical mastitis and 74 without signs of mammary inflammation (control). Staphylococcus aureus (25.7%), Streptococcus spp. (21.4%), Corynebacterium bovis (12.9%), Streptococcus agalactiae (4.3%) and Staphylococcus spp (4,3%) were the more-frequent microorganisms isolated from animals with mastitis. Aspergillus spp. was isolated from one animal. Ceftiofur (95.2%), oxacillin (84.2%), gentamicin (76.3%) and cefoperazone (70.3%) were the more effective drugs. High resistance of isolates were found to penicillin (53.5%), ampicillin (41.6%) and neomycin (38.6%). Multiple drug resistance to three or more drug was observed in 40 (39.6%) isolates. Media of somatic cell count encountered in animals with mastitis and controls were 175,742.67cs/mL and 58,227.6 cs/mL, respectively. Antimicrobials residues in milk were detected in four (2.7%) animals. The present findings showed the low somatic cell count of animals, indicative of good quality of milk. However, pointed the need of control measures for contagious pathogens of bovine mastitis and more attention for prohibition of antimicrobial use in organic dairy farms.

Abstract in English:

ABSTRACT.- Almeida R.F.C., Madruga C.R., Soares C.O., Fernandes M.C., Carvalho N.M., Jorge K.S.G. & Osório A.L.A.R. 2006. [Specific immune response of cattle to experimental sensibilization by inactivated Mycobacterium bovis and Mycobacterium avium.] Resposta imune específica de bovinos experimentalmente sensibilizados com inóculos inativados de Mycobacterium bovis e Mycobacterium avium. Pesquisa Veterinária Brasileira 26(4):195-200. Departamento de Medicina Veterinária da Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Campo Grande, MS 79070-900, Brazil. E-mail: analudmv@nin.ufms.br The presumptive diagnosis of bovine tuberculosis is based on analysis of the immune response to micobacterial antigens. This experimental simulation of sensibilization by Mycobacterium bovis and Mycobacterium avium in cattle aimed to verify the immune response by both the cervical comparative test and the evolution of the specific production of gamma-interferon, and also to identify interference of unspecified reactions by M. avium on the test results. The results support that the experimental animals started a response of delayed hypersensitivity to the inactivated bacilli, and that both diagnostic tests for bovine tuberculosis were efficient for the identification of animals sensitized with M. bovis and for discrimination of reactions generated by inoculation of cattle with M. avium.

• Mycobacterium bovis Mycobacterium avium gamma-interferon tuberculin immune response

Abstract in Portuguese:

ABSTRACT.- Almeida R.F.C., Madruga C.R., Soares C.O., Fernandes M.C., Carvalho N.M., Jorge K.S.G. & Osório A.L.A.R. 2006. [Specific immune response of cattle to experimental sensibilization by inactivated Mycobacterium bovis and Mycobacterium avium.] Resposta imune específica de bovinos experimentalmente sensibilizados com inóculos inativados de Mycobacterium bovis e Mycobacterium avium. Pesquisa Veterinária Brasileira 26(4):195-200. Departamento de Medicina Veterinária da Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Campo Grande, MS 79070-900, Brazil. E-mail: analudmv@nin.ufms.br The presumptive diagnosis of bovine tuberculosis is based on analysis of the immune response to micobacterial antigens. This experimental simulation of sensibilization by Mycobacterium bovis and Mycobacterium avium in cattle aimed to verify the immune response by both the cervical comparative test and the evolution of the specific production of gamma-interferon, and also to identify interference of unspecified reactions by M. avium on the test results. The results support that the experimental animals started a response of delayed hypersensitivity to the inactivated bacilli, and that both diagnostic tests for bovine tuberculosis were efficient for the identification of animals sensitized with M. bovis and for discrimination of reactions generated by inoculation of cattle with M. avium.