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dc.contributor.author
Madoz, Laura Vanina
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dc.contributor.author
Prunner, I.
dc.contributor.author
Jaureguiberry, María
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dc.contributor.author
Gelfert, C. C.
dc.contributor.author
de la Sota, Rodolfo Luzbel
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dc.contributor.author
Giuliodori, Mauricio Javier
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dc.contributor.author
Drillich, M.
dc.date.available
2018-06-22T22:34:03Z
dc.date.issued
2017-05
dc.identifier.citation
Madoz, Laura Vanina; Prunner, I.; Jaureguiberry, María; Gelfert, C. C.; de la Sota, Rodolfo Luzbel; et al.; Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge; American Dairy Science Association; Journal of Dairy Science; 100; 5; 5-2017; 3875-3882
dc.identifier.issn
0022-0302
dc.identifier.uri
http://hdl.handle.net/11336/49860
dc.description.abstract
The objective of this study was to assess the effect of a selective antibiotic treatment strategy based on a quick bacteriological on-farm test (Petrifilm, 3M Corp., St. Paul, MN) compared with the conventional antibiotic treatment of all cows having clinical endometritis (CE) defined by the presence of purulent vaginal discharge on both clinical cure rate and reproductive performance. The study was simultaneously conducted with dairy cows reared under a highly supplemented rotational grazing system in Argentina and in a freestall system in Slovakia. Cows having an abnormal vaginal discharge (VD, indicative of clinical endometritis) on 21 to 35 d in milk (DIM) were randomly allocated to 1 of 2 study groups: selective treatment (ST) or conventional treatment (CT). All cows in the CT group (n = 174) received a single intrauterine administration of 500 mg of cephapirin. In the ST group (n = 178), treatment decision was made according to the results of the bacteriological on-farm test. For this test, we collected intrauterine samples with the cytobrush technique and stroke the brushes onto 2 different Petrifilm plates, one for aerobic count and another for Enterobacteriaceae count, incubated the plates, and counted the number of colonies after 24 h. Positive cows (≥5 colonies in one or both plates) received a single intrauterine treatment with 500 mg of cephapirin, whereas negative cows (<5 colonies) remained untreated. Clinical cure rate was assessed by direct vaginal inspection at 14 d after treatment (VD-0). The odds for conception at first artificial insemination, artificial insemination by 80 DIM, pregnancy by 100 DIM, and for nonpregnancy by 200 DIM were estimated with mixed logistic regression models. The hazard of conception was also assessed with proportional hazard regression model. The selective antibiotic treatment strategy based on the outcome of Petrifilm test reduced the number of required treatments (57%) and maintained similar efficacy in terms of clinical cure and reproductive performance as the conventional antibiotic treatment of all endometritic cows.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Dairy Science Association
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Antibiotic Treatment
dc.subject
Bacteria
dc.subject
Clinical Endometritis
dc.subject
Petrifilm
dc.subject
Purulent Vaginal Discharge
dc.subject.classification
Biología Celular, Microbiología
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-06-22T14:21:52Z
dc.journal.volume
100
dc.journal.number
5
dc.journal.pagination
3875-3882
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Champaign
dc.description.fil
Fil: Madoz, Laura Vanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Departamento de Clínica. Cátedra de Reproducción Animal; Argentina
dc.description.fil
Fil: Prunner, I.. Veterinarmedizinische Universitat Wien; Austria
dc.description.fil
Fil: Jaureguiberry, María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Departamento de Clínica. Cátedra de Reproducción Animal; Argentina
dc.description.fil
Fil: Gelfert, C. C.. MSD Animal Health; Alemania
dc.description.fil
Fil: de la Sota, Rodolfo Luzbel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Departamento de Clínica. Cátedra de Reproducción Animal; Argentina
dc.description.fil
Fil: Giuliodori, Mauricio Javier. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Cátedra de Fisiología Animal; Argentina
dc.description.fil
Fil: Drillich, M.. Veterinarmedizinische Universitat Wien; Austria
dc.journal.title
Journal of Dairy Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0022030217301649
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3168/jds.2016-11931
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