Please use this identifier to cite or link to this item: http://repositorio.ufpa.br:8080/jspui/handle/2011/2507
Title: Etiologia e perfil de sensibilidade de bactérias isoladas de ovelhas com mastite na região Nordeste do estado do Pará
Other Titles: Etiology and antimicrobial susceptibilities of bacteria isolated from sheep with mastitis in Northeastern Pará, Brazil
metadata.dc.creator: SILVA, Natália da Silva e
SILVEIRA, José Alcides Sarmento da
PINHEIRO, Cleyton Prado
SOUSA, Melina Garcia Saraiva de
OLIVEIRA, Carlos Magno Chaves
MENDONÇA, Carla Lopes de
DUARTE, Marcos Dutra
BARBOSA NETO, José Diomedes
Keywords: Amazônia brasileira
Testes de sensibilidade microbiana
Ovinos
Mastite ovina
Pará - Estado
Issue Date: Dec-2010
Citation: SILVA, Natália da Silva e et al. Etiologia e perfil de sensibilidade de bactérias isoladas de ovelhas com mastite na região Nordeste do estado do Pará. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 30, n. 12, p. 1043-1048, dez. 2010. Disponível em: <http://www.scielo.br/pdf/pvb/v30n12/a07v3012.pdf>. Acesso em: 02 mar. 2012. <http://dx.doi.org/10.1590/S0100-736X2010001200007>.
Abstract: The objective of this paper was to study the etiology of mastitis in sheep at northeastern Pará, and to establish the sensitivity of isolated bacteria to antibiotics. A total of 176 Santa Inês nursing sheep kept in semi-intensive system from seven properties were examined. The mammary gland was clinically examined and the milk was submitted to the Caneca Telada Test, the California Mastitis Test (CMT), bacteriological examinations and antibiograms. Out of the 352 mammary halves (176 sheep), 5.9% (21/352) had clinical mastitis and by the CMT test, 7.39% (26/352) had subclinical mastitis and 86.64% (305/352) mammary halves did not have mastitis. Most of the animals with mastitis were in the second third of the lactation period, had less kids and more lactation periods. The following bacteria were isolated from the clinical mastitis Staphylococcus spp. coagulase negative (42,9%); Staphylococcus aureus (9.52%); Streptococcus spp. (4.76%) and Escherichia coli (4.76%). Were observed associations of Staphylococcus aureus and Streptococcus spp. (4,76%); Staphylococcus spp. coagulase negative nonhemolytic, Staphylococcus spp. coagulase negative hemolytic and Staphylococcus spp. coagulase negative non hemolytic pigment (4.76%). Already in subclinical mastitis the bacteria isolated were Staphylococcus spp. coagulase negative (26.9%); Staphylococcus aureus (15.,4%); Streptococcus spp. (7.69%); Escherichia coli (7.69%) and Citrobacter freundii (11.5%). Were observed associations of Staphylococcus spp. coagulase negative nonhemolytic and Staphylococcus spp. coagulase negative hemolytic (3.85%). The most efficient antibiotics for the Gram positive agents were penicile/novobiocine (100%), cefalotine (100%) and florfenicol (100%) and for the Citrobacter freundii were ampicilina (100%) and florfenicol (100%). In relation to Escherichia coli, 66.7% of isolates to ampicillin, cephalothin, florfenicol and tetracycline were resistant. Mastitis is present in sheep in the State of Pará, and it's necessary to estimate, in future studies, the economic losses caused by this disease. The CMT show satisfactory results and can be recommended as a screening test for diagnosing individual cases of subclinical mastitis in sheep, once had a good relationship with the microbiological examination. In the antibiogram where most of the isolated agents appear sensitive to different antibiotics tested, the antibiotics with the best efficiency were florfenicol and cefoxitin.
URI: http://repositorio.ufpa.br/jspui/2011/2507
ISSN: 0100-736X
Appears in Collections:Artigos Científicos - FAMEVE/CCAST

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