AAEP Annual Convention Las Vegas 2009
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How to Manage Jacks to Breed Mares

Author(s):
Canisso I.F.,
Coutinho da Silva M.A. and
McDonnell S.M.
In: AAEP Annual Convention - Las Vegas, 2009 by American Association of Equine Practitioners
Updated:
DEC 09, 2009
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1. Introduction
Traditionally, jacks are considered challenging to manage for breeding purposes.1–6 They are well known to be slower breeders compared with stallions, and this is true for natural mating and semen collection using either jennies or mares.1,7,8 The donkey’s natural sexual behavior significantly differs from that of other domestic animals. This presents the biggest challenge on mule studs. Normally, only jacks are kept for breeding, because jennies are considered to be disruptive and difficult to manage.

Several procedures have been suggested with the objective of overcoming the poor sexual behavior of jacks when required to breed mares and during semen collection. The aim of this article is to describe the authors’ practical experience and observations on the natural behavior of jacks and to apply this knowledge to breeding management to improve the success of using jacks for natural mating or semen collection when using mares. [...]

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How to reference this publication (Harvard system)?

Canisso, I. F., Coutinho da Silva, M. and McDonnell, S. M. (2009) “How to Manage Jacks to Breed Mares”, AAEP Annual Convention - Las Vegas, 2009. Available at: https://www.ivis.org/library/aaep/aaep-annual-convention-las-vegas-2009/how-to-manage-jacks-to-breed-mares (Accessed: 30 November 2023).

Author(s)

  • Canisso Igor

    Canisso I.F.

    Assistant Professor, Theriogenology (Equine Reproduction)
    DVM, MSc, Residency, PhD
    Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Illinois at Urbana-Champaign
    Read more about this author

  • Coutinho da Silva M.A.

    MS DVM
    Animal Reproduction and Biotechnology Laboratory, Colorado State University
    Read more about this author
  • Sue McDonnell

    McDonnell S.M.

    Adjunct Professor of Reproductive Behavior
    MS, PhD, Certified Applied Animal Behaviorist (CAAB) ABS
    Havemeyer Equine Behavior Laboratory, Dept of Clinical Studies, School of Veterinary Medicine, New Bolton Center, University of Pennsylvania
    Read more about this author

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