Equis ISSN 2398-2977

Semen: collection

Contributor(s): Rob Lofstedt, John Dascanio, Madeleine L H Campbell, Vetstream Ltd

Introduction

  • Semen collection is carried out when semen is required for evaluation, artificial insemination   Reproduction: artificial insemination  , cryopreservation and for breeding soundness examination of the stallion.
  • Collection can be made using 'fantom' or 'dummy' mounts into a commercially available artificial vagina, or less commonly with the help of an in estrus mare, or by "ground collection".

Ground collection is potentially extremely dangerous and should only be carried out by experienced personnel.

Uses

Advantages

  • AV collection is readily accepted by most stallions.
  • The collection method used here closely emulates natural mating so it enables observation of mating behavior, and the presence of congenital, physical   Male: lack of libido    Penis: erection failure    Male: mounting / intromission difficulty  and ejaculatory problems   Male: ejaculatory dysfunction  to be assessed.
  • Allows collection of whole ejaculate which increases accuracy of semen evaluation   Semen: evaluation  .
  • Sample relatively free of contamination.
  • Facilitates the division of one ejaculate between many mares, thus increasing reproductive efficiency and reducing the physiological stress on a stallion with many mares booked during a breeding season.
  • When correctly performed minimizes risk to handlers and stallion cf natural cover.
  • When biosecurity procedures are correctly followed, this minimizes the risk of spread of venereal disease.

Disadvantages

  • The limitations of the technique depend on stallion compliance. Almost all stallions will ejaculate into artificial vaginas when the technique is correctly applied! Some object to disposable AV liners.
  • Season and the experience of the stallion may determine how long the stallion takes to attain erection.
  • Sexual stimulation is essential if the stallion is to ejaculate and this requires good technique and preparation of the equipment.
  • If attempted by inexperienced personnel it can become rapidly dangerous.
  • If correct biosecurity measures are not stringently applied, venereal disease can be spread rapidly.

Requirements

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Preparation

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Procedure

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Aftercare

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Crabtree J (2010) Prebreeding examination of the stallion 2. Semen collection and evaluation. In Pract 32 (2), 58-63 VetMedResource.
  • Love C C (1992) Semen collection techniques. Vet Clin North Am Equine Pract (1), 111-128 PubMed.
  • Tischner M & Kosiniak K (1992) Techniques for collection and storage of stallion semen with minimal secondary contamination. Acta Vet Scand Suppl 88, 83-90 PubMed.
  • Volkman D H (1987) A modified fantom (dummy mount) for stallion semen collection. Equine Vet J 19 (4), 339-341 PubMed.

Other sources of information

  • Campbell M L H (2009)How to Collect, Process and Certify Equine Semen. In:Proc 48th BEVA Congress. Birmingham. pp 42-43.
  • McKinnon A O & Voss J L (1993)Equine Reproduction.Lea & Febiger. pp 710-711. ISBN: 0 8121 1427 2.


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