The incidence and productive significance of ovine toxoplasmosis in Southern Brazil
ABSTRACT: This research aimed to determine incidence of Toxoplama gondii infection in Corriedale sheep in southern Brazil during pregnancy and the extent of associated losses. Blood samples were collected from 411 Corriedale sheep in two flocks at different locations in the state of Rio Grande do S...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
2016-01-01
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| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016005012104&lng=en&tlng=en |
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| author | Fernando Caetano de Oliveira Plínio Aguiar de Oliveira Nilton Azevedo da Cunha Filho Cintia Lidiane Guidotti Aguiar Felipe Geraldo Pappen Jeronimo Lopes Ruas Nara Amélia da Rosa Farias |
| author_facet | Fernando Caetano de Oliveira Plínio Aguiar de Oliveira Nilton Azevedo da Cunha Filho Cintia Lidiane Guidotti Aguiar Felipe Geraldo Pappen Jeronimo Lopes Ruas Nara Amélia da Rosa Farias |
| author_sort | Fernando Caetano de Oliveira |
| collection | DOAJ |
| description | ABSTRACT: This research aimed to determine incidence of Toxoplama gondii infection in Corriedale sheep in southern Brazil during pregnancy and the extent of associated losses. Blood samples were collected from 411 Corriedale sheep in two flocks at different locations in the state of Rio Grande do Sul (Brazil). Presence of T. gondii was diagnosed by the Indirect Fluorescent Antibody Technique (IFAT). Seroprevalence of T. gondii during pre-mating was 20.2%, with no significant difference between the two flocks studied. Infection by T. gondii was influenced by ewes'age (P≤0.05). The pre-mating seroprevalence did not influence either returning to estrus or pregnancy rates. Weaning rate was significantly higher in pre-positive dams compared to negative ones (87.9 and 74.1%, respectively - P<0.05). The incidence of seroconversion was 16.5% (54/328). In seroconverted ewes, a high rate of return to estrus was observed (P≤0.05). The incidence of toxoplasmosis suggests production losses equivalent to 1.87% per year, in this system production. In addition, toxoplasmosis decreased the number of lambs per ewe. Therefore, to improve livestock performance, T. gondii infection should be monitored and controlled in the studied area. |
| first_indexed | 2024-04-11T22:58:24Z |
| format | Article |
| id | doaj.art-4f565f3c4fcf46ed93e8ab655f7897d8 |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-04-11T22:58:24Z |
| publishDate | 2016-01-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-4f565f3c4fcf46ed93e8ab655f7897d82022-12-22T03:58:17ZengUniversidade Federal de Santa MariaCiência Rural1678-45962016-01-01010.1590/0103-8478cr20151500S0103-84782016005012104The incidence and productive significance of ovine toxoplasmosis in Southern BrazilFernando Caetano de OliveiraPlínio Aguiar de OliveiraNilton Azevedo da Cunha FilhoCintia Lidiane Guidotti AguiarFelipe Geraldo PappenJeronimo Lopes RuasNara Amélia da Rosa FariasABSTRACT: This research aimed to determine incidence of Toxoplama gondii infection in Corriedale sheep in southern Brazil during pregnancy and the extent of associated losses. Blood samples were collected from 411 Corriedale sheep in two flocks at different locations in the state of Rio Grande do Sul (Brazil). Presence of T. gondii was diagnosed by the Indirect Fluorescent Antibody Technique (IFAT). Seroprevalence of T. gondii during pre-mating was 20.2%, with no significant difference between the two flocks studied. Infection by T. gondii was influenced by ewes'age (P≤0.05). The pre-mating seroprevalence did not influence either returning to estrus or pregnancy rates. Weaning rate was significantly higher in pre-positive dams compared to negative ones (87.9 and 74.1%, respectively - P<0.05). The incidence of seroconversion was 16.5% (54/328). In seroconverted ewes, a high rate of return to estrus was observed (P≤0.05). The incidence of toxoplasmosis suggests production losses equivalent to 1.87% per year, in this system production. In addition, toxoplasmosis decreased the number of lambs per ewe. Therefore, to improve livestock performance, T. gondii infection should be monitored and controlled in the studied area.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016005012104&lng=en&tlng=enToxoplasma gondiiovelhasgestaçãoperdas |
| spellingShingle | Fernando Caetano de Oliveira Plínio Aguiar de Oliveira Nilton Azevedo da Cunha Filho Cintia Lidiane Guidotti Aguiar Felipe Geraldo Pappen Jeronimo Lopes Ruas Nara Amélia da Rosa Farias The incidence and productive significance of ovine toxoplasmosis in Southern Brazil Ciência Rural Toxoplasma gondii ovelhas gestação perdas |
| title | The incidence and productive significance of ovine toxoplasmosis in Southern Brazil |
| title_full | The incidence and productive significance of ovine toxoplasmosis in Southern Brazil |
| title_fullStr | The incidence and productive significance of ovine toxoplasmosis in Southern Brazil |
| title_full_unstemmed | The incidence and productive significance of ovine toxoplasmosis in Southern Brazil |
| title_short | The incidence and productive significance of ovine toxoplasmosis in Southern Brazil |
| title_sort | incidence and productive significance of ovine toxoplasmosis in southern brazil |
| topic | Toxoplasma gondii ovelhas gestação perdas |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016005012104&lng=en&tlng=en |
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