Gumz Farms International Breeding Information

Available for 2015 breeding – semen available in Germany or Austria and Australia through brokers and farm direct.

  • Absolute Investment - Australia at IHB
  • Its All About Blue - IHB for Australia and EU is at farm
  • Its A Southern Thing - European, Australia (European is brokered by David Maisonnette)
  • Iron Age - Australia with IHB and Jens Meyer in Germany
  • No Doubt Im Lazy - Germany and Austrailia – EU available at farm
  • These Irons Are Hot - Australia only – EU available at farm
  • A Major Leaguer -  Australia only

For Breeding Information and Contracts for the EU contact Gumz Farms

European Frozen semen stored at:

Hengststation Jens Meyer
Dorumer Altendeich 8
27632 Dorum
Tel. +49(0)4742/92 21 43
Fax. +49(0)4742/92 21 49

David Maisonnett
Tél: (+33) 6 73 33 15 32

Semen Stored by : Equine Services Select Breeders Service South Germany
Ruettehofstr. 35
79713 Bad Saeckingen | Germany
Tel. +49 7763 7021
Fax. +49 7763 4468
Cell. +49 170 549 1127

For Breeding Information in Australian & New Zealand Breeders



The Mechanics of Breeding with Frozen Semen

The hot topic for many mare and stallion owners for the past few years has been frozen semen. This topic has been in the news again as many are concerned about the availability of cooled semen from heavily booked stallions.  In the case of a heavily booked stallion, frozen semen gives you a timeless option in the condition that limited cooled semen is available.   Frozen semen has now become a viable option when deciding how to breed your mare(s) and/or market your stallion(s).  The conception rate with frozen semen is now reported comparable with cooled semen, according to a paper presented at the 2005 American Association of Equine Practioners (AAEP) by Dr. Ed Squires of Colorado State University.  In fact, conception rates with frozen semen are often greater than conception rates with cooled semen since professional labs traditionally freeze and package the semen with a higher degree of standardization and quality control.

Below is the Step by Step Protocol of breeding with frozen semen as adopted by Colorado State University, Select Breeders Service and Gumz Farms.

  • The first step to a successful breeding with frozen semen is to first verify that the mare is a suitable candidate for AI with frozen semen. It is suggested that a routine reproduction exam is preformed, which may include culture, cytology, and biopsy if indicated. Data suggest that aged (>15 years) or repeatedly barren mares will have a significantly reduced pregnancy rate and should not be selected for use with frozen semen.
  • Once the mare comes into estrus, palpate or scan daily to monitor follicular activity.
  • Upon detection of a large (35-40mm) pre-ovulatory follicle, administer hCG or Ovuplant.

1.   If more than one dose of semen is available for insemination on a given heat cycle:

    1. Continue to examine the mare via ultrasound once daily and inseminate a single dose of frozen semen approximately 24 hours after hCG administration.
    2. Examine the mare approximately 16 house after insemination and inseminate a second dose of frozen semen even if the mare has already ovulated.
    3. Examine the mare the following day to confirm ovulation.  Insemination of a third dose may be required if the mare has still not ovulated.

Note:    A general goal for mares inseminated with frozen semen is to inseminate within 12 hours prior to or within 6 hours after ovulation.  This protocol insures that viable sperm are in the oviduct within a period of 18 to 52 hours following administration of hCG or Ovuplant.

2.   If only one dose of semen is available for insemination:

  1. Examine the mare via ultrasound at 6 hour intervals starting at 12-24 hours after hCG or Ovuplant administration.
  2. Inseminate the single dose of frozen semen as soon as ovulation is detected.  It is extremely important that mares being inseminated post ovulation within 6 hours of ovulation.  A significant reduction in fertility will occur if mares are inseminated more than 6 hours post ovulation.

3.   Mares that exhibit a delayed clearance of post-mating induced fluid should be treated with oxytocin (greater than 4 hours after each breeding or after the last breeding) and/or uterine lavage to aid in the mechanical expulsion of fluid from the uterus.

The above protocol is in use at Gumz Farms, as well as many breeding facilities and veterinarian clinics, with huge success.  The steps above are extremely similar to breeding with cooled semen, reducing the misconceptions that breeding with frozen semen is time consuming, expensive and ineffective. 

Considering the cost effectiveness and ease of use of frozen semen, this is quickly becoming a viable option in the equine industry worthy of consideration from any breeder.