Uterine infection with bovine herpesvirus type 4 in dairy cows

Diseases of the reproductive tract are a frequent problem in dairy herds. Herpesviruses are uterine pathogens also involved in other clinical diseases; for example, bovine herpesvirus type 4 BoHV-4 induces abortion, enteritis, metritis, pneumonia and vaginitis, but it can also be detected in healthy...

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Autores principales:	Klamminger, S., Prunner, I., Giuliodori, Mauricio Javier, Drillich, M.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2016
Materias:	Ciencias Veterinarias bovine herpesvirus type 4 Uterine infection fertility dairy cows
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/159589
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-159589
record_format	dspace
spelling	I19-R120-10915-1595892023-10-30T20:08:35Z http://sedici.unlp.edu.ar/handle/10915/159589 Uterine infection with bovine herpesvirus type 4 in dairy cows Klamminger, S. Prunner, I. Giuliodori, Mauricio Javier Drillich, M. 2016-11-14 2023-10-30T18:13:33Z en Ciencias Veterinarias bovine herpesvirus type 4 Uterine infection fertility dairy cows Diseases of the reproductive tract are a frequent problem in dairy herds. Herpesviruses are uterine pathogens also involved in other clinical diseases; for example, bovine herpesvirus type 4 BoHV-4 induces abortion, enteritis, metritis, pneumonia and vaginitis, but it can also be detected in healthy cows. The role of BoHV-4 in the development of clinical endometritis (CE) or subclinical endometritis (SE) has not clearly been described. Therefore, the objective of this study was to describe the prevalence of uterine BoHV-4 infection and its relationship with clinical, bacteriological and cytological findings in dairy cows 20–30 days after calving. The experiment was performed as a completely randomized block design, with farm (n = 10) as blocking criterion and with cow (n = 397) as the experimental unit. Logistic regression models were used to assess the effect of BoHV-4 infection on CE, SE and reproductive performance. Proportion of cows infected with BoHV-4 was 5.8% (n = 23/397). BoHV-4 was isolated in 11.0% (n = 12/109), 4.8% (n = 4/84) and 3.6% (n = 7/194) of cows diagnosed as CE, SE or healthy, respectively. A logistic model revealed that BoHV-4 infection showed a tendency to increase the risk for CE (AOR = 2.17; p = .10) but significantly reduced both, the odds for artificial insemination within 80 days post-partum (dpp) (AOR = 0.37; p = .035) and for pregnancy within 200 dpp (AOR = 0.13; p = .004). Furthermore, BoHV-4 infection increased the chance for intrauterine infection with Trueperella pyogenes (AOR = 5.55; p < .001) and vice versa (AOR = 5.79, p < .001). In conclusion, BoHV-4 infection is associated with reduced chances for insemination and pregnancy by 200 dpp and showed a trend to be associated with increased risk for CE. Furthermore, BoHV-4 and Trueperella pyogenes infections are strongly related. Facultad de Ciencias Veterinarias Articulo Articulo http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) application/pdf 115-121
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Veterinarias bovine herpesvirus type 4 Uterine infection fertility dairy cows
spellingShingle	Ciencias Veterinarias bovine herpesvirus type 4 Uterine infection fertility dairy cows Klamminger, S. Prunner, I. Giuliodori, Mauricio Javier Drillich, M. Uterine infection with bovine herpesvirus type 4 in dairy cows
topic_facet	Ciencias Veterinarias bovine herpesvirus type 4 Uterine infection fertility dairy cows
description	Diseases of the reproductive tract are a frequent problem in dairy herds. Herpesviruses are uterine pathogens also involved in other clinical diseases; for example, bovine herpesvirus type 4 BoHV-4 induces abortion, enteritis, metritis, pneumonia and vaginitis, but it can also be detected in healthy cows. The role of BoHV-4 in the development of clinical endometritis (CE) or subclinical endometritis (SE) has not clearly been described. Therefore, the objective of this study was to describe the prevalence of uterine BoHV-4 infection and its relationship with clinical, bacteriological and cytological findings in dairy cows 20–30 days after calving. The experiment was performed as a completely randomized block design, with farm (n = 10) as blocking criterion and with cow (n = 397) as the experimental unit. Logistic regression models were used to assess the effect of BoHV-4 infection on CE, SE and reproductive performance. Proportion of cows infected with BoHV-4 was 5.8% (n = 23/397). BoHV-4 was isolated in 11.0% (n = 12/109), 4.8% (n = 4/84) and 3.6% (n = 7/194) of cows diagnosed as CE, SE or healthy, respectively. A logistic model revealed that BoHV-4 infection showed a tendency to increase the risk for CE (AOR = 2.17; p = .10) but significantly reduced both, the odds for artificial insemination within 80 days post-partum (dpp) (AOR = 0.37; p = .035) and for pregnancy within 200 dpp (AOR = 0.13; p = .004). Furthermore, BoHV-4 infection increased the chance for intrauterine infection with Trueperella pyogenes (AOR = 5.55; p < .001) and vice versa (AOR = 5.79, p < .001). In conclusion, BoHV-4 infection is associated with reduced chances for insemination and pregnancy by 200 dpp and showed a trend to be associated with increased risk for CE. Furthermore, BoHV-4 and Trueperella pyogenes infections are strongly related.
format	Articulo Articulo
author	Klamminger, S. Prunner, I. Giuliodori, Mauricio Javier Drillich, M.
author_facet	Klamminger, S. Prunner, I. Giuliodori, Mauricio Javier Drillich, M.
author_sort	Klamminger, S.
title	Uterine infection with bovine herpesvirus type 4 in dairy cows
title_short	Uterine infection with bovine herpesvirus type 4 in dairy cows
title_full	Uterine infection with bovine herpesvirus type 4 in dairy cows
title_fullStr	Uterine infection with bovine herpesvirus type 4 in dairy cows
title_full_unstemmed	Uterine infection with bovine herpesvirus type 4 in dairy cows
title_sort	uterine infection with bovine herpesvirus type 4 in dairy cows
publishDate	2016
url	http://sedici.unlp.edu.ar/handle/10915/159589
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Uterine infection with bovine herpesvirus type 4 in dairy cows

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