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Investigations into the seroprevalence of antibodies against avian paramyxovirus serotype 1, 2 and 3 in the sera of free-living red-legged partridges (Alectoris rufa) in southern Spain

Authors: Höfle, Ursula; Gortázar, Christian; Angulo, Elena; Kaleta, E.F.; Villafuerte, Rafael;

Investigations into the seroprevalence of antibodies against avian paramyxovirus serotype 1, 2 and 3 in the sera of free-living red-legged partridges (Alectoris rufa) in southern Spain

Abstract

[EN]The red-legged partridge(Alectoris rufa) is one of the most important small gamebirds in southern and central Spain, where game production accounts for a great part of the income of the region. For this reason, the management of partridge populations in the hunting areas has increased in the past years, and a growing number of captive breeding centres has been established. The present study investigates the prevalence of antibodies against avian paramyxovirus (aPMV) -1, -2 and -3 in the sera of 65 red-legged partridges shot in different hunting areas in the south of Spain (Andalusia), in order to collect information on the prevalence of these pathogens among free-living partridges, with a view to the future use of vaccines against Newcastle disease in captive populations. All analysed sera were negative for antibodies against aPMV-1, while one bird tested positive against aPMV-2 and another two birds against aPMV-3. The results for aPMV-2 and 3 reflect the prevalence of these viruses among free-living birds in southern Spain, as reported by other authors. The absence of antibodies against aPMV-1 among the investigated partridges supports the view that vaccination programs against Newcastle disease would not be justified.

[GER] Eine der wichtigsten Niederwildarten in Süd- und Zentralspanien ist das Rothuhn(Alectoris rufa), das in diesen Gebieten eine große wirtschaftliche Bedeutung besitzt. Aus diesem Grunde hat sich in den vergangenen Jahren die Bewirtschaftung der Rothuhnbestände intensiviert und die Zahl der Zuchtbestände vervielfacht. Die vorliegende Studie untersucht 65 Seren von erlegten Rothühnern aus Andalusien auf die Präsenz von Antikörpern gegen aviäres Paramyxovirus (aPMV) -1, -2 und -3, mit dem Ziel, Aufschluss über die Durchseuchung der Wildpopulationen und über den möglichen Nutzen der Einführung von Impfprogrammen gegen die Newcastle-Krankheit bei Zuchtstämmen zu geben. Während bei keinem der untersuchten Tiere Antikörper gegen aPMV-1 gefunden wurden, wiesen jeweils ein Rothuhn einen niedrigen Antikörpertiter gegen aPMV-2 und zwei weitere Rothühner gegen aPMV-3 auf. Dies spiegelt die in einer anderen Studie über Wildvögel Südspaniens ermittelten Durchseuchungsraten für aPMV-2 und -3 wider. Auf der Basis des negativen Ergebnisses für aPMV-1 scheint die Einführung von Impfprogrammen gegen die Newcastle-Krankheit bei Rothühnern nicht gerechtfertigt zu sein.

Peer reviewed

Keywords

Alectoris rufa, Seroprevalence, Newcastle-disease, Red-legged partridge, vaccination, Avian Paramyxovirus 1, 2 and 3

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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