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Office and Stallion Barn at the Marietta, OK facility

Hartman Equine Reproduction Center (HERC) Is a full service equine fertility facility with two locations, each situated in the heart of performance horse country Whitesboro, Texas, and Marietta, Oklahoma.

Established with a reputation of uncompromising commitment to quality horse care and strong relationships with their owners, HERC's facilities offer a full range of specialized reproductive services. From fertilization to birth, HERC utilizes state-of-the-art technology to ensure the health of your stallion, mare and foal. They offer the latest in reproductive health services:

HERC's on-going collaborative relationship with Dr. Katrin Hinrichs and the Equine Embryo Laboratory at Texas A&M University includes research projects in the areas of intracytoplasmic sperm injection (ICSI) - fertilizaton of oocytes, as well as embryo freezing. With the current clinical application of these advanced reproductive techniques, vHERC anticipates being able to offer oocyte aspiration at both its Texas and Oklahoma facilities for the 2012 breeding season. Following aspiration, unfertilized oocytes will be transported to the Equine Embryo Laboratory where ICSI fertilization will occur. Resulting embryos will then be transported to HERC for transfer to a recipient mare.

A recent addition to HERC is Dr. Justin Voge who joined the practice after completion of a residency in Equine Theriogenology at Texas A&M University, under the guidance of renowned specialists Drs. Dickson Varner, Terry Blanchard, Charles Love and Steven Brinsko. Dr. Voge is a boarded reproductive specialist in the American College of Theriogenologists (DACT) and has a Masters degree in reproductive physiology from Oklahoma State University. Dr. Voge's professional interests include management of the subfertile stallion/mare and reproductive medicine.

As Reining continues to grow in popularity worldwide, let HERC be your resource for expanding your breeding program outside of the U.S. They are an USDA approved site for semen freezing and shipment to the European Union, South America, Canada, and Australia.

Some of the top names in the performance horse industry are included in HERC's 2012 stallion roster : Big Chex To Cash, Smart Spook, Smart Mate, Wild Haired Cat, Playgun, Electric Code, Magnum With A Dream, Master Snapper, Hang Ten Surprize, and Auspicious Cat. With a stallion roster such as this, it is understandable why HERC feels it is "Standing the Future".

Turn Out's at the Marietta, OK facility

Check out our services

View our current stallion roster

2015 Breeding Info

**Final breeding day is tentative

The dates highlighted in Blue are semen collection days for all stallions standing at HERC, please note not all stallions are available for cooled semen shipments. When ordering a semen shipment, please give 24-hour advance notice. All shipment cancellations must be completed by 8am (CST) the day of shipment. FedEx Service is not available on Saturday or Sunday Collection Days.

***Due to show schedule “Not Ruf At All” may not be available for cooled semen shipment, frozen semen will be available. Please give a minimum of 72 hours notice if frozen semen is needed.
***Playgun will be frozen semen only. No cooled semen available. Please give a minimum of 72 hours notice if frozen semen is needed.

2015 Collection Calendar

Texas Location:
15225 Hwy. 377
P.O. Box 915
Whitesboro, TX 76273
Oklahoma Location:
Marietta, OK
Former "Polo Ranch"
(903) 564-3200 office
(903) 564-3943 fax
(903) 818-6475 breeding manager
e-mail us