Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge

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 presenc...

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Autores principales: Madoz, Laura Vanina, Prunner, I., Jaureguiberry, M. Soledad, Gelfert, C., Sota, Rodolfo Luzbel de la, Giuliodori, Mauricio Javier, Drillich, M.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Veterinarias
antibiotic treatment
bacteria
clinical endometritis
Petrifilm
purulent vaginal discharge
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87329
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87329
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Veterinarias
antibiotic treatment
bacteria
clinical endometritis
Petrifilm
purulent vaginal discharge
spellingShingle Ciencias Veterinarias
antibiotic treatment
bacteria
clinical endometritis
Petrifilm
purulent vaginal discharge
Madoz, Laura Vanina
Prunner, I.
Jaureguiberry, M. Soledad
Gelfert, C.
Sota, Rodolfo Luzbel de la
Giuliodori, Mauricio Javier
Drillich, M.
Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge
topic_facet Ciencias Veterinarias
antibiotic treatment
bacteria
clinical endometritis
Petrifilm
purulent vaginal discharge
description 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.
format Articulo
Articulo
author Madoz, Laura Vanina
Prunner, I.
Jaureguiberry, M. Soledad
Gelfert, C.
Sota, Rodolfo Luzbel de la
Giuliodori, Mauricio Javier
Drillich, M.
author_facet Madoz, Laura Vanina
Prunner, I.
Jaureguiberry, M. Soledad
Gelfert, C.
Sota, Rodolfo Luzbel de la
Giuliodori, Mauricio Javier
Drillich, M.
author_sort Madoz, Laura Vanina
title Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge
title_short Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge
title_full Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge
title_fullStr Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge
title_full_unstemmed Application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge
title_sort application of a bacteriological on-farm test to reduce antimicrobial usage in dairy cows with purulent vaginal discharge
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87329
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