Occurrences of Eimeria spp. and gastrointestinal nematodes in dairy calves in southern Minas Gerais, Brazil Ocorrência de Eimeria spp. e nematódeos gastrintestinais em bezerros no sul de Minas Gerais, Brasil
The aim of this cross-sectional observational study was to determine the frequency and factors associated with infection by Eimeria spp. and gastrointestinal nematodes in 356 calves on 20 dairy farms located in southern Minas Gerais, Brazil. Ten species of Eimeria spp. were identified, of which E. b...
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Published in: | Revista brasileira de parasitologia veterinaria Vol. 21; no. 2; pp. 171 - 175 |
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Main Authors: | , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Colégio Brasileiro de Parasitologia Veterinaria
01-06-2012
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Online Access: | Get full text |
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Summary: | The aim of this cross-sectional observational study was to determine the frequency and factors associated with infection by Eimeria spp. and gastrointestinal nematodes in 356 calves on 20 dairy farms located in southern Minas Gerais, Brazil. Ten species of Eimeria spp. were identified, of which E. bovis (37.6%) and E. zuernii (17.9%) were the most frequent. From fecal cultures, four genera of gastrointestinal nematodes were recovered, of which Cooperia spp. (74.6%) and Haemonchus (19.4%) were the most frequent. Variables relating to higher levels of technology used on dairy farms showed a significant association (p < 0.05) with higher OPG and EPG counts, and are discussed in this study.O objetivo deste estudo foi determinar a frequência e os fatores associados à infecção por Eimeria spp. e nematódeos gastrintestinais, em 356 bezerras provenientes de 20 rebanhos leiteiros, localizados no sul de Minas Gerais, Brasil. Foram identificadas dez espécies de Eimeria spp., sendo E. bovis (37,6%) e E. zuernii (17,9%) as mais frequentes. Nas coproculturas, foram recuperados quatro gêneros de nematódeos gastrintestinais, sendo os mais frequentes Cooperia spp. (74,6%) e Haemonchus spp. (19,4%).Variáveis relacionadas a um maior nível de tecnificação das propriedades leiteiras apresentaram associação significativa (p < 0,05), com maiores contagens de OoPG e OPG, e são discutidas neste estudo. |
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ISSN: | 0103-846X 1984-2961 |
DOI: | 10.1590/S1984-29612012000200019 |