Title: Epizootiologic investigations of selected abortive agents in free-ranging Alpine ibex (Capra ibex ibex) in Switzerland
Authors : Marreros, Nelson
Hüssy, Daniela
Albini, Sarah
Frey, Caroline F.
Abril, Carlos
Vogt, Hans-Rudolf
Holzwarth, Nathalie
Wirz-Dittus, Sophie
Friess, Martina
Engels, Monika
Borel, Nicole
Willisch, Christian S.
Signer, Claudio
Hoelzle, Ludwig E.
Ryser-Degiorgis, Marie-Pierre
Published in : Journal of wildlife diseases
Volume(Issue) : 47
Issue : 3
Pages : 530
Pages to: 543
Publisher / Ed. Institution : Wildlife Disease Association
Issue Date: 2011
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (publication)
Language : English
Subject (DDC) : 571: Physiology and related subjects
590: Animals (Zoology)
Abstract: In the early 2000s, several colonies of Alpine ibex (Capra ibex ibex) in Switzerland ceased growing or began to decrease. Reproductive problems due to infections with abortive agents might have negatively affected recruitment. We assessed the presence of selected agents of abortion in Alpine ibex by serologic, molecular, and culture techniques and evaluated whether infection with these agents might have affected population densities. Blood and fecal samples were collected from 651 ibex in 14 colonies throughout the Swiss Alps between 2006 and 2008. All samples were negative for Salmonella spp., Neospora caninum, and Bovine Herpesvirus-1. Antibodies to Coxiella burnetii, Leptospira spp., Chlamydophila abortus, Toxoplasma gondii, and Bovine Viral Diarrhea virus were detected in at least one ibex. Positive serologic results for Brucella spp. likely were false. Overall, 73 samples (11.2%) were antibody-positive for at least one abortive agent. Prevalence was highest for Leptospira spp. (7.9%, 95% CI=5.0–11.7). The low prevalences and the absence of significant differences between colonies with opposite population trends suggest these pathogens do not play a significant role in the population dynamics of Swiss ibex. Alpine ibex do not seem to be a reservoir for these abortive agents or an important source of infection for domestic livestock in Switzerland. Finally, although interactions on summer pastures occur frequently, spillover from infected livestock to free-ranging ibex apparently is uncommon.
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Natural Resource Sciences (IUNR)
Publication type: Article in scientific journal
DOI : 10.7589/0090-3558-47.3.530
ISSN: 0090-3558
1943-3700
URI: https://digitalcollection.zhaw.ch/handle/11475/15463
Appears in Collections:Publikationen Life Sciences und Facility Management

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