Occurrence of antibodies to Neospora caninum and Toxoplasma gondii in dairy cattle from the northern region of the Paraná State, Brazil
Three-hundred and eighty-five serum samples were taken from dairy cows on 90 farms in 12 counties from the northern region of the Paraná State, Brazil. The samples were analyzed by IFAT for the detection of anti-Neospora caninum and anti-Toxoplasma gondii IgG antibodies. Forty-five (12%) samples wer...
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Published in: | Arquivo brasileiro de medicina veterinária e zootecnia Vol. 57; no. 3; pp. 312 - 316 |
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Main Authors: | , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Universidade Federal de Minas Gerais, Escola de Veterinária
01-06-2005
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Subjects: | |
Online Access: | Get full text |
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Summary: | Three-hundred and eighty-five serum samples were taken from dairy cows on 90 farms in 12 counties from the northern region of the Paraná State, Brazil. The samples were analyzed by IFAT for the detection of anti-Neospora caninum and anti-Toxoplasma gondii IgG antibodies. Forty-five (12%) samples were seropositive to N. caninum, while 102 (26%) samples were seropositive to T. gondii. Only four animals were seropositive to both coccidia. No significant difference was observed between the N. caninum serology and any of the variables studied, such as dairy cattle management, milk production, reproductive problems, feeding, and presence of dogs, cats and rodents. These data suggest that neosporosis is present among dairy cattle in the studied geographic region and the simultaneous detection of serum positive animals to both types of coccidian parasite demonstrates the independent occurrence of these coccidia in dairy cows.
Foram analisadas, por meio da imunofluorescência indireta, 385 amostras de soros de vacas, pertencentes a 90 propriedades leiteiras de 12 municípios da região Norte do estado do Paraná. Foram observados 45 (12%) sororeagentes ao Neospora caninum e 102 (26%) ao Toxoplasma gondii. Apenas quatro animais apresentaram títulos de anticorpos para ambos os coccídios. Não foi observada diferença significativa na associação entre a sorologia do N. caninum e as variáveis relacionadas ao manejo, produção de leite, problemas reprodutivos, alimentação, presença de cães, gatos e roedores. Os resultados sugerem que neosporose e toxoplasmose estão disseminadas nos rebanhos leiteiros da região Norte do estado do Paraná, e a freqüência simultânea de anticorpos anti-N. caninum e anti-T. gondii, demonstra sua ocorrência independente em vacas leiteiras. |
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Bibliography: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000300006 10.1590/S0102-09352005000300006 |
ISSN: | 0102-0935 1678-4162 1678-4162 0102-0935 |
DOI: | 10.1590/S0102-09352005000300006 |