Animal Reproduction Systems, Inc.

Animal Reproduction Systems, Inc. Animal Reproduction Systems produces artificial insemination equipment for equine, livestock, poultry, and canine breeders.

Founded in 1980, as a division of Dupree, Inc., a company with deep roots in the aerospace industry, Animal Reproduction Systems (ARS) applied engineering science, high-tech electronics, and quality manufacturing processes to create products that set industry standards for animal breeding practices. Since our first product, the Model 534A Densimeter, known in the industry as the "Blue Box" stallio

n s***m counter, ARS has continued to manufacture and improve state-of-the-art equipment for equine, bovine, porcine, poultry, and canine breeding programs. In August 2014, Animal Reproduction Systems, Inc. was established as Doug and Kathy Thistlethwaite took over the reins of ARS. For twenty-six years Doug had worked for Dupree, Inc., in both the ARS division and as the head of their engineering department. He holds United States patents for the ARS densimeter, and has designed many of the products we carry. Doug met Kathy in 1985, in a fencing class, while they were attending California State Polytechnic University, Pomona. At that time, she was starting colts at the BJ Cuttin' Horse Ranch, owned by Jim and Bunny Dupree, and he was working for General Dynamics. As their courtship developed, Doug became a frequent visitor to the ranch, which later led to a job offer from Dupree, Inc. The Thistlethwaite's were established in 1988, and the rest is history still in the making. Doug, Kathy, and the rest of the ARS staff are looking forward to continuing the traditions of producing high-quality, innovative products, and providing excellent customer service to our valued clients. Please visit our website at www.arssales.com for a full description of our products. Business Hours
8:00 AM - 4:30 PM (Pacific Standard Time) Mon-Fri

Telephone:
1-800-300-5143 (US Sales)
1-909-364-1311
1-909-393-6670 (Outside the US)

Fax:
1-909-364-1611 (US)
001-909-364-1611 (Outside the US)

AAEP has a free webinar coming up on Nov. 5th for owners of older equines.  Registration is required.  Sign up and take ...
10/29/2025

AAEP has a free webinar coming up on Nov. 5th for owners of older equines. Registration is required. Sign up and take care of those seniors!

DON'T MISS OUR LAST HORSE OWNER EDUCATION WEBINAR OF 2025! ๐Ÿ“ข

Join us next Wednesday, Nov. 5, for "Care and Management of the Elderly Equine".

Just like people, the needs of horses change as they continue to age. Members of the AAEP Horse Owner Education committee will present on a wide range of topics to help you properly care for the elderly equine in your life. Discussion points will include diet, dentistry, common diseases and illnesses, preventative care, and more. Do not miss this informative session on how to help your older horse live its best life!

Registration is FREE but required. A recording of the webinar will be available if you miss the live event.

Register here: https://events.zoom.us/ev/Ah5yOsCebSifxMhDsKU4IL28l58V2uXLCCZy2BJfr1cVGkPrhte-~AkTrbyktZL-X6LN0LpntEqMChUPte_sAlD_Vc22m-q6fZUf_K_Bby90XhQ

This informative session is brought to you by the AAEP Horse Owner Education Committee.

Registration is still open for the Colorado State University Equine Reproduction Short Course.  These spots fill up fast...
10/29/2025

Registration is still open for the Colorado State University Equine Reproduction Short Course. These spots fill up fast, so don't hesitate to get enrolled.

The flagship course of the program is designed for horse owners and breeders to increase the efficiency and ultimately the success of their breeding programs. Cost is $2,500 for 5 full days of hands-on learning and insightful lectures. Course is designed for horse owners, breeders, and breeding assi...

Terrific opportunity to learn at a top-notch facility.
10/27/2025

Terrific opportunity to learn at a top-notch facility.

๐—ฆ๐˜‚๐—บ๐—บ๐—ฒ๐—ฟ ๐—ถ๐—ป๐˜๐—ฒ๐—ฟ๐—ป๐˜€๐—ต๐—ถ๐—ฝ๐˜€ ๐—ฎ๐—ฟ๐—ฒ ๐—ป๐—ผ๐˜„ ๐—ผ๐—ฝ๐—ฒ๐—ป!
Applications for the 2026 Summer Internship are due December 31, 2025. The internship season runs May through mid-October, with exact dates flexible based on college schedules.

This program offers a unique opportunity to gain hands-on experience across the ranch, cattle, and equine divisions of the Four Sixes Ranch. Interns assist in the final stages of breeding season through July 1, participate in the daily care and preparation of sale horses, and help with halter-breaking weanlings.

Interns also shadow the resident veterinarians and staff, assisting with medical treatments, surgeries, and procedures, while working alongside the ranch farriers with trimming and shoeing. Throughout the season, students gain valuable insight into managing a large-scale horse and cattle operation while building the skills and experience needed for a future in the livestock and equine industries.

๐Ÿ’ป Apply now or learn more: http://bit.ly/3JulGUC

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Foaling season is just around the corner!  Preparation is the key to success when bringing those eagerly anticipated col...
10/27/2025

Foaling season is just around the corner! Preparation is the key to success when bringing those eagerly anticipated colts and fillies into the world.

Having a well-stocked foaling kit, including an equine colostrum refractometer is essential to giving those new foals the best possible start. Our ARS Equine Colostrum Refractometer is calibrated specifically for mare's milk. It's easy to use, only requires a few drops of colostrum, and can be read immediately.

For an excellent explanation of the importance of evaluating mare colostrum, please follow this link to the article written by Dr. Pat McCue at the Colorado State University Equine Reproduction Laboratory: https://www.arssales.com/colostrum_101.html

To order online, go to: https://www.arsequine.com/equine-colostrum-refractometer

Are you ready for foaling season?  ARS is!
10/14/2025

Are you ready for foaling season? ARS is!

Deluxe Foaling Kit

Foaling season is right around the corner.  The key to success is preparation, and ARS has a wide range of foaling suppl...
10/14/2025

Foaling season is right around the corner. The key to success is preparation, and ARS has a wide range of foaling supplies to help you be ready for those special deliveries.

ARS offers two foaling kits - our standard one (AFK-101) is a great way to have foaling supplies all in one convenient box. It includes a fast reading thermometer, stethoscope, nasal aspirator, enemas, umbilical clamps, umbilical tape, gloves, navel dipping tube, terrycloth towel, Surgilube, a 60" obstetrical strap, 7" stainless steel Mayo scissors, a placenta cord, and more! Our deluxe kit (AFK-201) includes all the standard supplies, plus an Equine Colostrum Refractometer and an E-Z Breather Foal Resuscitator.
Both kits are packaged in a sturdy box with a carrying handle. For more details, to view all of our foaling supplies, or to place an order, please visit our website:

https://www.arsequine.com/deluxe-foaling-kit2

Or give us a call at 1-800-300-5143, Monday - Friday, 8 AM - 4 PM Pacific Standard Time.

Deluxe Foaling Kit

Just 72 days until Christmas!  Not to panic anyone, but with the holidays right around the corner, UPS is reminding us t...
10/13/2025

Just 72 days until Christmas! Not to panic anyone, but with the holidays right around the corner, UPS is reminding us that after November 17th, expect an extra day for ground service deliveries as their service demand increases. These delays can affect air shipments as well since weather, and diverted flights can pose big challenges.

So, please plan ahead when stocking your foaling barn and breeding lab. If you need frozen extender, or IgG test kits, ARS recommends shipping on Monday so delays aren't likely to extend into a weekend. If you place your order online, please put "ship Monday" in the comments area to save us a phone call. ;)
www.arsequine.com
Or give us a call:
1-800-300-5143, Monday - Friday, 8 AM - 4 PM Pacific Standard Time

UC Davis Horse Day is just around the corner, Saturday, October 11, 2025! Here's their schedule of events...
10/01/2025

UC Davis Horse Day is just around the corner, Saturday, October 11, 2025! Here's their schedule of events...

The full 2025 UC Davis Horse Day schedule is officially here! Take a look at the fantastic line up of topics we have in store for our attendees on October 11th. If you want to get in on the action be sure to grab your tickets on our website!

https://animalscience.ucdavis.edu/facilities/horsebarn/horse-day

Happy Fall from ARS!  As the days are getting cooler and shorter, now is a good time to check your supplies for the 2026...
09/22/2025

Happy Fall from ARS! As the days are getting cooler and shorter, now is a good time to check your supplies for the 2026 foaling and breeding season.

Be sure your labware is clean before shelving it for the winter, and remember, latex liners and bladders last longer if stored dark and cold - in your freezer is ideal.

If your densimeter needs servicing, or you're in need of an IgG upgrade, or additional species calibration, now is a great time to get it tuned up before next season.

If pumpkin spice is your vibe, ARS offers orange cane tabs and custom printed freezing straws to add some autumnal color to your freezing dewars!

Please visit our website at www.arsequine.com to see our full product line. If you have questions or need assistance with an order, we're here Monday - Friday from 8:00 AM - 4:00 PM. Give us a call at 1-800-300-5143 or 1-909-364-1311

ARS recommends Terg-A-Zyme detergent for cleaning latex AV  liners and labware.  The enzymatic formula is designed to br...
09/11/2025

ARS recommends Terg-A-Zyme detergent for cleaning latex AV liners and labware. The enzymatic formula is designed to break down proteins (semen, sm**ma, blood, etc...), and rinse away easily.

Packaged in a new, resealable plastic 4 lb container, the concentrated formula will make up to 52 gallons of cleaning solution.

To order, go to our website: https://www.arsequine.com/terg-a-zyme-detergent-powder
or give us a call at 1-800-300-5143, Mon.-Fri. 8AM-4PM.

Terrific opportunity for the right person to be part of an extraordinary team.
09/10/2025

Terrific opportunity for the right person to be part of an extraordinary team.

Alamo Pintado Equine Medical Center, a leader in equine veterinary medicine located in Los Olivos, CA, is seeking a Client Care Coordinator to join our team!
As the first point of contact for many of our clients, youโ€™ll play a vital role in supporting our veterinarians, technicians, and administrative team while helping us deliver the exceptional care Alamo Pintado is known for.
What youโ€™ll do:
- Provide outstanding client service โ€” in person and over the phone
- Coordinate appointments and manage scheduling logistics
- Process medical records and assist with patient outcome tracking
- Collaborate with our veterinary team and clients
What weโ€™re looking for:
- Friendly, compassionate, and organized
- Skilled at multitasking in a dynamic environment
- Knowledge of equine care or veterinary terminology is a plus
- Must be willing to work onsite in Los Olivos, CA

Send your resume and a brief cover letter to [email protected] to learn more.

Address

1901 S. Lynx Place
Ontario, CA
91761

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

+19093641311

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