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Tierarztl Prax Ausg G Grosstiere Nutztiere 2016; 44(03): 171-178
DOI: 10.15653/TPG-151145
Übersichtsartikel
Schattauer GmbH

Unterdrückung von Sexualverhalten und Fortpflanzung beim männlichen kleinen Wiederkäuer

Suppression of sexual activity and reproduction in male small ruminants
Lisa Mihsler
1   Klinikum Veterinärmedizin, Klinik für Geburtshilfe, Gynäkologie und Andrologie der Groß- und Kleintiere mit Tierärztlicher Ambulanz
,
Henrik Wagner
1   Klinikum Veterinärmedizin, Klinik für Geburtshilfe, Gynäkologie und Andrologie der Groß- und Kleintiere mit Tierärztlicher Ambulanz
,
Axel Wehrend
1   Klinikum Veterinärmedizin, Klinik für Geburtshilfe, Gynäkologie und Andrologie der Groß- und Kleintiere mit Tierärztlicher Ambulanz
› Author Affiliations
Further Information

Publication History

Received: 29 December 2015

Accepted after major revision: 28 April 2016

Publication Date:
20 December 2017 (online)

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Zusammenfassung

Der Umgang und die Haltung männlicher kleiner Wiederkäuer sind ab Eintritt der Geschlechtsreife oft mit erheblichen Schwierigkeiten verbunden. Die Kastration stellt derzeit die sicherste Methode zur Lösung dieses Problems dar. Eine Alternative wären medikamentöse Verfahren zur temporären Ausschaltung der Gonadenfunktion. Nach einem kurzen Überblick zur chirurgischen Kastration wird anhand einer Übersicht der Literatur das derzeitige Wissen zur Anwendung von Vakzinen gegen Gonadotropin-Releasing-Hormon (GnRH) sowie zur Verabreichung von GnRH-Agonisten beim Schafund Ziegenbock dargestellt. Beim Schafbock wurde die GnRH-Vakzination unabhängig vom Alter zum Zeitpunkt des Behandlungsbeginns erfolgreich zur temporären Unterdrückung der Fortpflanzung eingesetzt. Für den Ziegenbock liegen weniger Untersuchungen vor. Eine vollständige Unterdrückung der Spermatogenese gelingt nicht in allen Fällen. Die Verabreichung von GnRH-Agonisten stellt derzeit keine als sicher zu bezeichnende Methode zur Unterdrückung der Gonadenfunktion dar.

Summary

Handling and husbandry of male small ruminants after sexual maturity often become difficult. Castration is currently the most reliable solution to this problem. Medicinal procedures for temporary inhibition of the gonad function could provide an alternative. Following a short overview of surgical castration, the current knowledge on the application of vaccines against gonadotropin-releasing hormone (GnRH) and GnRH agonist in rams and billy goats is presented in a literature overview. In rams, GnRH vaccination has been used successfully for temporary suppression of the reproduction function, regardless of an animal’s age at the time of therapy initiation. Fewer investigations are available for the billy goat. A complete suppression of spermatogenesis was not achieved in all cases. Currently, treatment with GnRH agonists does not represent a relible method for the suppression of gonad function.

Schlüsselwörter

Gonadenfunktion - Haltungsprobleme - Kastration - Schafbock - Ziegenbock

Keywords

Gonad function - husbandry problems - castration - ram - billy goat
 

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