@article{
 title = {Seroprevalence of Brucella ovis in rams and associated flock level risk factors in the state of Rio Grande do Sul, Brazil},
 type = {article},
 year = {2015},
 identifiers = {[object Object]},
 keywords = {Epididymitis,Lambing paddocks,Prevalence,Risk factor,Sheep},
 volume = {121},
 id = {6fbd2add-9e3d-38ea-a363-b4c1ea4f8edd},
 created = {2018-06-14T19:29:00.281Z},
 file_attached = {false},
 profile_id = {aee12f7e-b052-32fa-a6bc-3e0ecfadb1ab},
 last_modified = {2018-06-14T19:29:00.281Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {false},
 hidden = {false},
 private_publication = {false},
 abstract = {© 2015 Elsevier B.V. A cross-sectional study based on a planned probabilistic sampling was carried out to estimate animal and flock prevalence of Brucella ovis in rams, as well as to determine risk factors at the flock level. Data regarding the flocks were collected by means of a questionnaire applied on 705 farms in the state of Rio Grande do Sul, Brazil, using one-stage cluster sampling. From the 705 flocks, 20 (2.5%, CI 95% : 2.0-3.1%) had at least one positive ram. At the animal level, out of 1800 rams, 52 were positive (2.89%, CI 95% : 0.4-5.3%). Statistical analysis identified the following as risk factors: average age of rams in the flocks (PR: 1.99, CI 95% : 1.19-3.32); farms larger than 5 km 2 (500ha) on extension area (PR: 7.46CI 95% : 2.03-27.43); and the lack of lambing paddocks (PR: 5.56, CI 95% : 1.70-18.11). This study provided relevant information for authorities to elaborate plans for the first Brazilian state based B. ovis disease control and eradication program. To the authors' knowledge, this is the first study that shows the importance of lambing paddocks in order to keep pre-lambing and lambing ewes away from the rest of the flock, the lack of this infrastructure was considered an important risk factor for B. ovis.},
 bibtype = {article},
 author = {Machado, G. and Santos, D.V. and Kohek, I. and Stein, M.C. and Hein, H.E. and Poeta, A.S. and Vidor, A.C.M. and Corbellini, L.G.},
 journal = {Preventive Veterinary Medicine},
 number = {1-2}
}

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A cross-sectional study based on a planned probabilistic sampling was carried out to estimate animal and flock prevalence of Brucella ovis in rams, as well as to determine risk factors at the flock level. Data regarding the flocks were collected by means of a questionnaire applied on 705 farms in the state of Rio Grande do Sul, Brazil, using one-stage cluster sampling. From the 705 flocks, 20 (2.5%, CI 95% : 2.0-3.1%) had at least one positive ram. At the animal level, out of 1800 rams, 52 were positive (2.89%, CI 95% : 0.4-5.3%). Statistical analysis identified the following as risk factors: average age of rams in the flocks (PR: 1.99, CI 95% : 1.19-3.32); farms larger than 5 km 2 (500ha) on extension area (PR: 7.46CI 95% : 2.03-27.43); and the lack of lambing paddocks (PR: 5.56, CI 95% : 1.70-18.11). This study provided relevant information for authorities to elaborate plans for the first Brazilian state based B. ovis disease control and eradication program. To the authors' knowledge, this is the first study that shows the importance of lambing paddocks in order to keep pre-lambing and lambing ewes away from the rest of the flock, the lack of this infrastructure was considered an important risk factor for B. ovis.","bibtype":"article","author":"Machado, G. and Santos, D.V. and Kohek, I. and Stein, M.C. and Hein, H.E. and Poeta, A.S. and Vidor, A.C.M. and Corbellini, L.G.","journal":"Preventive Veterinary Medicine","number":"1-2","bibtex":"@article{\n title = {Seroprevalence of Brucella ovis in rams and associated flock level risk factors in the state of Rio Grande do Sul, Brazil},\n type = {article},\n year = {2015},\n identifiers = {[object Object]},\n keywords = {Epididymitis,Lambing paddocks,Prevalence,Risk factor,Sheep},\n volume = {121},\n id = {6fbd2add-9e3d-38ea-a363-b4c1ea4f8edd},\n created = {2018-06-14T19:29:00.281Z},\n file_attached = {false},\n profile_id = {aee12f7e-b052-32fa-a6bc-3e0ecfadb1ab},\n last_modified = {2018-06-14T19:29:00.281Z},\n read = {false},\n starred = {false},\n authored = {true},\n confirmed = {false},\n hidden = {false},\n private_publication = {false},\n abstract = {© 2015 Elsevier B.V. A cross-sectional study based on a planned probabilistic sampling was carried out to estimate animal and flock prevalence of Brucella ovis in rams, as well as to determine risk factors at the flock level. Data regarding the flocks were collected by means of a questionnaire applied on 705 farms in the state of Rio Grande do Sul, Brazil, using one-stage cluster sampling. From the 705 flocks, 20 (2.5%, CI 95% : 2.0-3.1%) had at least one positive ram. At the animal level, out of 1800 rams, 52 were positive (2.89%, CI 95% : 0.4-5.3%). Statistical analysis identified the following as risk factors: average age of rams in the flocks (PR: 1.99, CI 95% : 1.19-3.32); farms larger than 5 km 2 (500ha) on extension area (PR: 7.46CI 95% : 2.03-27.43); and the lack of lambing paddocks (PR: 5.56, CI 95% : 1.70-18.11). This study provided relevant information for authorities to elaborate plans for the first Brazilian state based B. ovis disease control and eradication program. To the authors' knowledge, this is the first study that shows the importance of lambing paddocks in order to keep pre-lambing and lambing ewes away from the rest of the flock, the lack of this infrastructure was considered an important risk factor for B. ovis.},\n bibtype = {article},\n author = {Machado, G. and Santos, D.V. and Kohek, I. and Stein, M.C. and Hein, H.E. and Poeta, A.S. and Vidor, A.C.M. and Corbellini, L.G.},\n journal = {Preventive Veterinary Medicine},\n number = {1-2}\n}","author_short":["Machado, G.","Santos, D.","Kohek, I.","Stein, M.","Hein, H.","Poeta, A.","Vidor, A.","Corbellini, L."],"bibbaseid":"machado-santos-kohek-stein-hein-poeta-vidor-corbellini-seroprevalenceofbrucellaovisinramsandassociatedflocklevelriskfactorsinthestateofriograndedosulbrazil-2015","role":"author","urls":{},"keyword":["Epididymitis","Lambing paddocks","Prevalence","Risk factor","Sheep"],"downloads":0},"bibtype":"article","creationDate":"2020-02-04T22:29:59.421Z","downloads":0,"keywords":["epididymitis","lambing paddocks","prevalence","risk factor","sheep"],"search_terms":["seroprevalence","brucella","ovis","rams","associated","flock","level","risk","factors","state","rio","grande","sul","brazil","machado","santos","kohek","stein","hein","poeta","vidor","corbellini"],"title":"Seroprevalence of Brucella ovis in rams and associated flock level risk factors in the state of Rio Grande do Sul, Brazil","year":2015}