Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil

Detalhes bibliográficos
Autor(a) principal: Beloti, Vanerli
Data de Publicação: 1997
Outros Autores: Müller, Ernst Eckehardt, Freitas, Julio Cesar de, Mettifogo, Elena
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4984
Resumo: California Mastitis Test (CMT) was performed in five hundred and three Holstein cows from the north region of Paraná. One hundred and fifithy of these cows (29,82%) and 295 quarters in the CMT were positives. In 223 milk samples was observed bacterial growth (213 pure cultures and 10 associated cultures). The most commonly agents isolated in pure growth were, staphylococci (30,51%), whereas S. aureus (17,97%) and coagulase negative staphylococci (12,54%), streptococci (21,69%) and C. bovis (18,98%). Colonie's counter was performed in 193 milk samples. Of these samples, 9 had less than 3 x 102 CFU/ml, 22 had between 3 x 102 to 103 CFU/ml, 17 had between 103 to 3 x 103 CFU/ml and 145 had more 3 x 103 CFU/ml. The mean somatic cell count for the main agents isolated were 2,9 x 106/ml for streptococci, 2,5 x 106/ml for S. aureus, 1,2 x 106/ml for CNS. The most commonly species of CNS were S. hyicus (25,00%), S. chromogenes (15,00%), S. epidermidis(~\ 5,00%), S. simulans (5,00%) and S. warneri(5,00%). Thirty comma thirty percent of 33 isolated, were resistant to lincomycin, 27,27% to tetracycline, 18,18% to penicillin and novobiocin, 15,15% to ampicillin and erytromycin.  
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spelling Study of Subclinical Mastitis in Dairy Herds of North Paraná, BrazilEstudo da mastite subclínica em rebanhos leiteiros no norte do ParanáBovineMastitisAetiologySomatic cells.BovinoMastiteEtiologiaCélulas somáticas. California Mastitis Test (CMT) was performed in five hundred and three Holstein cows from the north region of Paraná. One hundred and fifithy of these cows (29,82%) and 295 quarters in the CMT were positives. In 223 milk samples was observed bacterial growth (213 pure cultures and 10 associated cultures). The most commonly agents isolated in pure growth were, staphylococci (30,51%), whereas S. aureus (17,97%) and coagulase negative staphylococci (12,54%), streptococci (21,69%) and C. bovis (18,98%). Colonie's counter was performed in 193 milk samples. Of these samples, 9 had less than 3 x 102 CFU/ml, 22 had between 3 x 102 to 103 CFU/ml, 17 had between 103 to 3 x 103 CFU/ml and 145 had more 3 x 103 CFU/ml. The mean somatic cell count for the main agents isolated were 2,9 x 106/ml for streptococci, 2,5 x 106/ml for S. aureus, 1,2 x 106/ml for CNS. The most commonly species of CNS were S. hyicus (25,00%), S. chromogenes (15,00%), S. epidermidis(~\ 5,00%), S. simulans (5,00%) and S. warneri(5,00%). Thirty comma thirty percent of 33 isolated, were resistant to lincomycin, 27,27% to tetracycline, 18,18% to penicillin and novobiocin, 15,15% to ampicillin and erytromycin.   Foram examinadas através do "California Mastitis Test" (CMT) 503 vacas da raça holandesa em propriedades da região norte do Paraná. Destes animais, 150 (29,82%) apresentaram resultados positivos, totalizando 295 quartos. Crescimento bacteriano foi obtido em 223 amostras de leite, sendo 213 culturas puras e 10 mistas. Os agentes isolados com maior freqüência em cultura pura foram os estafilococos (30,51%), sendo 17,97% S. aureus e 12,54% estafilococos coagulase negativos (ECN), estreptococos (21,69%) e C. bovis (18,98%). O número de unidades formadoras de colónias (UFC) de 193 amostras de leite mostrou nove com contagens inferiores a 3 x 102/ml, 22 com 3 x 102 a 103/ml, 17 com 103 a 3 x 103/ml e, 145 superiores a 3 x 103/ml. As médias das contagens de células somáticas (CCS) para as principais bactérias isoladas foram: estreptococos (2,9 x 106/ ml); S. aureus (2,5 x 106/ml); ECN (1,2 x 106/ml) e C. bovis (979 x 103/ml). Entre os ECN predominaram o S. hyicus (25,00%), S. chromogenes (15,00%), S. epidermidis (15,00%), S. simulans (5,00%) e S. warneri (5,00%). Dos 33 ECN, 30,30% foram resistentes à lincomicina, 27,27% àtetraciclina, 18,18% à penicilina e à novobiocina e 15,15% à ampicilina e à eritromicina.    UEL1997-01-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/498410.5433/1679-0359.1997v18n1p45Semina: Ciências Agrárias; Vol. 18 No. 1 (1997); 45-53Semina: Ciências Agrárias; v. 18 n. 1 (1997); 45-531679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4984/4400Beloti, VanerliMüller, Ernst EckehardtFreitas, Julio Cesar deMettifogo, Elenainfo:eu-repo/semantics/openAccess2010-04-14T19:36:25Zoai:ojs.pkp.sfu.ca:article/4984Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2010-04-14T19:36:25Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil
Estudo da mastite subclínica em rebanhos leiteiros no norte do Paraná
title Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil
spellingShingle Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil
Beloti, Vanerli
Bovine
Mastitis
Aetiology
Somatic cells.
Bovino
Mastite
Etiologia
Células somáticas.
title_short Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil
title_full Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil
title_fullStr Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil
title_full_unstemmed Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil
title_sort Study of Subclinical Mastitis in Dairy Herds of North Paraná, Brazil
author Beloti, Vanerli
author_facet Beloti, Vanerli
Müller, Ernst Eckehardt
Freitas, Julio Cesar de
Mettifogo, Elena
author_role author
author2 Müller, Ernst Eckehardt
Freitas, Julio Cesar de
Mettifogo, Elena
author2_role author
author
author
dc.contributor.author.fl_str_mv Beloti, Vanerli
Müller, Ernst Eckehardt
Freitas, Julio Cesar de
Mettifogo, Elena
dc.subject.por.fl_str_mv Bovine
Mastitis
Aetiology
Somatic cells.
Bovino
Mastite
Etiologia
Células somáticas.
topic Bovine
Mastitis
Aetiology
Somatic cells.
Bovino
Mastite
Etiologia
Células somáticas.
description California Mastitis Test (CMT) was performed in five hundred and three Holstein cows from the north region of Paraná. One hundred and fifithy of these cows (29,82%) and 295 quarters in the CMT were positives. In 223 milk samples was observed bacterial growth (213 pure cultures and 10 associated cultures). The most commonly agents isolated in pure growth were, staphylococci (30,51%), whereas S. aureus (17,97%) and coagulase negative staphylococci (12,54%), streptococci (21,69%) and C. bovis (18,98%). Colonie's counter was performed in 193 milk samples. Of these samples, 9 had less than 3 x 102 CFU/ml, 22 had between 3 x 102 to 103 CFU/ml, 17 had between 103 to 3 x 103 CFU/ml and 145 had more 3 x 103 CFU/ml. The mean somatic cell count for the main agents isolated were 2,9 x 106/ml for streptococci, 2,5 x 106/ml for S. aureus, 1,2 x 106/ml for CNS. The most commonly species of CNS were S. hyicus (25,00%), S. chromogenes (15,00%), S. epidermidis(~\ 5,00%), S. simulans (5,00%) and S. warneri(5,00%). Thirty comma thirty percent of 33 isolated, were resistant to lincomycin, 27,27% to tetracycline, 18,18% to penicillin and novobiocin, 15,15% to ampicillin and erytromycin.  
publishDate 1997
dc.date.none.fl_str_mv 1997-01-15
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4984
10.5433/1679-0359.1997v18n1p45
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4984
identifier_str_mv 10.5433/1679-0359.1997v18n1p45
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/4984/4400
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 18 No. 1 (1997); 45-53
Semina: Ciências Agrárias; v. 18 n. 1 (1997); 45-53
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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