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Contagious epididymitis due to Brucella ovis: relationship between sexual function, serology and bacterial shedding in semen.
BMC Vet Res. 2015 May 30; 11:125.BV

Abstract

BACKGROUND

Contagious Epididymitis (CE) due to Brucella ovis (B. ovis) is a contagious disease that impairs rams' fertility due to epididymis, testicle and accessory sexual gland alterations. An increased incidence of CE has been observed in South Eastern France ("PACA" region) since the Rev.1 vaccination against B. melitensis has been stopped in 2008. The objective of this study was to evaluate the relationship between the infection by B. ovis and the sexual function of rams. Two-hundred eighteen sexually-mature rams, from 11 seropositive flocks, were submitted to a clinical examination of the genital tract, a semen collection by electro-ejaculation for spermogram and culture, and a serological examination for anti-B. ovis antibodies by complement fixation test (CFT) and indirect ELISA (I-ELISA). The relationships between clinical, seminal, bacteriological and serological parameters were studied using the Fisher exact test and a logistic regression model (binomial logit).

RESULTS

B. ovis shedding in semen was significantly associated with seropositivity (CFT and I-ELISA; p < 0.001 and 0.01 respectively), genital tract alterations (p < 0.05) and poor semen quality (p < 0.001). Seropositive rams presented significantly more genital tract alterations (p < 0.001) and a poor seminal score (p < 0.001) than seronegative rams.

CONCLUSIONS

Since semen culture is not routinely feasible in field conditions, a control plan of CE should be based, where Rev.1 vaccination is not possible, on both systematic clinical and serological examination of rams, followed by the culling of seropositive and/or genital tract alterations carrier rams.

Authors+Show Affiliations

Université de Toulouse, INP-ENVT, UMR 1331-Toxalim, F-31076, Toulouse, France. n.hagen-picard@envt.fr.Université de Toulouse, INP-ENVT, UMR 1225-IHAP and UMT Maîtrise de la santé des troupeaux de petits ruminants, F-31076, Toulouse, France. x.berthelot@envt.fr.Groupement de Défense Sanitaire des Alpes de Haute Provence, F-04000, Digne les Bains, France. jlucchampion@yahoo.fr.Groupement de Défense Sanitaire des Bouches du Rhône, F-13626, Aix en Provence, France. l.eon@bouches-du-rhone.chambagri.fr.Université de Toulouse, INP-ENVT, Unité de Biostatistiques, F-31076, Toulouse, France. f.lyazrhi@envt.fr.Groupement de Défense Sanitaire des Alpes de Haute Provence, F-04000, Digne les Bains, France. m.marois.gds04@gmail.com.Fédération Régionale des Groupements de Défense Sanitaire Provence Alpes Côte d'Azur, F-04100, Manosque, France. marcelinepeglion@gmail.com.Université de Toulouse, INP-ENVT, UMR 1225-IHAP and UMT Maîtrise de la santé des troupeaux de petits ruminants, F-31076, Toulouse, France. a.schuster_08@envt.fr.Université de Toulouse, INP-ENVT, UMR 1225-IHAP and UMT Maîtrise de la santé des troupeaux de petits ruminants, F-31076, Toulouse, France. c.trouche_08@envt.fr.Paris-Est University/French Agency for Food, Environmental and Occupational Health and Safety (ANSES), EU/OIE/FAO Brucellosis Reference Laboratory, 94701, Maisons-Alfort, France. bruno.garin-bastuji@anses.fr. Present Address: ANSES, European & International Affairs Department, 14 rue Pierre et Marie Curie, F-94701, Maisons-Alfort, Cedex, France. bruno.garin-bastuji@anses.fr.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26025374

Citation

Picard-Hagen, Nicole, et al. "Contagious Epididymitis Due to Brucella Ovis: Relationship Between Sexual Function, Serology and Bacterial Shedding in Semen." BMC Veterinary Research, vol. 11, 2015, p. 125.
Picard-Hagen N, Berthelot X, Champion JL, et al. Contagious epididymitis due to Brucella ovis: relationship between sexual function, serology and bacterial shedding in semen. BMC Vet Res. 2015;11:125.
Picard-Hagen, N., Berthelot, X., Champion, J. L., Eon, L., Lyazrhi, F., Marois, M., Peglion, M., Schuster, A., Trouche, C., & Garin-Bastuji, B. (2015). Contagious epididymitis due to Brucella ovis: relationship between sexual function, serology and bacterial shedding in semen. BMC Veterinary Research, 11, 125. https://doi.org/10.1186/s12917-015-0440-7
Picard-Hagen N, et al. Contagious Epididymitis Due to Brucella Ovis: Relationship Between Sexual Function, Serology and Bacterial Shedding in Semen. BMC Vet Res. 2015 May 30;11:125. PubMed PMID: 26025374.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Contagious epididymitis due to Brucella ovis: relationship between sexual function, serology and bacterial shedding in semen. AU - Picard-Hagen,Nicole, AU - Berthelot,Xavier, AU - Champion,Jean Luc, AU - Eon,Laure, AU - Lyazrhi,Faouzi, AU - Marois,Maxime, AU - Peglion,Marceline, AU - Schuster,Aude, AU - Trouche,Christel, AU - Garin-Bastuji,Bruno, Y1 - 2015/05/30/ PY - 2015/01/08/received PY - 2015/05/18/accepted PY - 2015/5/31/entrez PY - 2015/5/31/pubmed PY - 2016/2/5/medline SP - 125 EP - 125 JF - BMC veterinary research JO - BMC Vet. Res. VL - 11 N2 - BACKGROUND: Contagious Epididymitis (CE) due to Brucella ovis (B. ovis) is a contagious disease that impairs rams' fertility due to epididymis, testicle and accessory sexual gland alterations. An increased incidence of CE has been observed in South Eastern France ("PACA" region) since the Rev.1 vaccination against B. melitensis has been stopped in 2008. The objective of this study was to evaluate the relationship between the infection by B. ovis and the sexual function of rams. Two-hundred eighteen sexually-mature rams, from 11 seropositive flocks, were submitted to a clinical examination of the genital tract, a semen collection by electro-ejaculation for spermogram and culture, and a serological examination for anti-B. ovis antibodies by complement fixation test (CFT) and indirect ELISA (I-ELISA). The relationships between clinical, seminal, bacteriological and serological parameters were studied using the Fisher exact test and a logistic regression model (binomial logit). RESULTS: B. ovis shedding in semen was significantly associated with seropositivity (CFT and I-ELISA; p < 0.001 and 0.01 respectively), genital tract alterations (p < 0.05) and poor semen quality (p < 0.001). Seropositive rams presented significantly more genital tract alterations (p < 0.001) and a poor seminal score (p < 0.001) than seronegative rams. CONCLUSIONS: Since semen culture is not routinely feasible in field conditions, a control plan of CE should be based, where Rev.1 vaccination is not possible, on both systematic clinical and serological examination of rams, followed by the culling of seropositive and/or genital tract alterations carrier rams. SN - 1746-6148 UR - https://www.unboundmedicine.com/medline/citation/26025374/Contagious_epididymitis_due_to_Brucella_ovis:_relationship_between_sexual_function_serology_and_bacterial_shedding_in_semen_ L2 - https://bmcvetres.biomedcentral.com/articles/10.1186/s12917-015-0440-7 DB - PRIME DP - Unbound Medicine ER -