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)

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, you’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 you’ll do:
- Provide outstanding client service β€” 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 we’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.

If you're near Hackettstown, NJ this Saturday, check out this Equine event at Centenary University!
09/10/2025

If you're near Hackettstown, NJ this Saturday, check out this Equine event at Centenary University!

A story that magnifies the phrase "Have a heart" in the best possible way.
09/08/2025

A story that magnifies the phrase "Have a heart" in the best possible way.

'Tis the season to be freezin! ARS prints custom freezing straws!  These high quality .5ml straws are available in orang...
09/05/2025

'Tis the season to be freezin!
ARS prints custom freezing straws! These high quality .5ml straws are available in orange, green, clear, blue, and gold, and sold per 100 straws.

-Print is available on 2 lines, up to 53 characters per line.
-ARS recommends using ALL CAPITAL LETTERS when printing for easier legibility.
-If you want a date line to fill in later, we recommend using the top line which is easier to fill in. We recommend 4-6 spaces created between slash marks for handwritten dates. Use a black ink permanent ultra fine tip Sharpie if writing dates on the straws, before you fill and freeze them!

-Timing is everything in breeding, and straw printing! Custom printing can take up to a week to print depending on the number of orders we're working on. If you plan ahead, ground shipping provides economical service, but remember it may take up to 5 days to arrive depending on your location (we're in southern California).
-In a rush? ARS does offer expedited service on our website, at the additional cost of $20 per 100 straws. Expedited service moves your order to the front of the production line, and will ship your straws the next business day. When selecting a shipping method, use the drop-down menu on our website to view all the available shipping options and pricing.
- Keep in mind when ordering other supplies with your custom straws, that the order will ship when the straws are ready. If that doesn't work for you, please put straws on a separate order.

To order, go to our website: https://www.arsequine.com/custom-printed-freezing-straws
Or give us a call at 1-800-300-5143 Monday -Friday from 8:00 AM - 4:00 PM PST.

With the holidays rapidly approaching, unfortunately that also means more shipped packages go missing.  When ordering, p...
09/05/2025

With the holidays rapidly approaching, unfortunately that also means more shipped packages go missing. When ordering, please make sure your packages can be delivered to a secure location or given to a responsible person on your property. You can request packages be delivered with a required signature as further peace of mind.

Here at ARS, when a package leaves our dock in the afternoon, a UPS tracking number is automatically emailed to your provided email address. If you don't receive one, or you shipped via FedEx, you an always give us a call the next day to get your tracking number.

Please let us know as soon as possible if you have a problem with a delivery.
1-800-300-5143 or 1-909-364-1311 Monday- Friday 8 AM - 4 PM

Animal Reproduction Systems will be closed on Monday, September 1st for the Labor Day Holiday.  Orders placed after 10 A...
08/28/2025

Animal Reproduction Systems will be closed on Monday, September 1st for the Labor Day Holiday. Orders placed after 10 AM on Friday, August 29, will ship on Tuesday, September 2nd.

We'll be back in the office at 8:00 AM on Tuesday, September 2nd.

If you are in the market for a used densimeter, get the serial  # and the model (591A or B, 590A or B, 534B, etc..), and...
08/15/2025

If you are in the market for a used densimeter, get the serial # and the model (591A or B, 590A or B, 534B, etc..), and give us a call! We keep records on every unit we've made and sold, as well as servicing and repairs that we have done.

Have an old densimeter that isn't working, or is starting to falter? Give us a call! We do repairs on most units, and can add IgG and other species to the 591 and 590 models. Another option is to trade in your old densimeter for a 10% discount on a new one.

Another consideration when shopping for densimeters, is the peripheral kit. All new ARS densimeters come with the accessories to run 100 tests - including the power cord, cuvettes and caps, pipette tips, the positive displacement pipette, a bottle of Formalin 10 solution and the dispensing pump, Kimwipes, and the instruction manual. Purchased separately, those supplies add up to about $600. Consider this when looking at a used model, and prepare to budget for the supplies needed to run the tests.

For more information about our latest densimeter models, go to our website: https://www.arsequine.com/591c-stallion-s***m-counter-kit
or give us a call at 1-800-300-5143, Mon. - Fri., 8:00 AM - 4:00 PM PST

Outstanding opportunity for the right intern.
08/06/2025

Outstanding opportunity for the right intern.

Our Breeding/Foaling Attendant Internship application is now open!

Whether you are interested in applying to vet school, or simply learning more of the basics of general care, reproduction, foaling, doctoring, vaccinations, and sale prep of horses, this is an internship you should consider. You will get a tremendous amount of hands-on experience and on-the-job training.

For more information and to apply, visit www.6666ranch.com/employment-and-internships/

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ARS makes 4 sizes of our Colorado Artificial Va**na - 22", 19", 15", and 12".  All sizes are available with either the l...
08/01/2025

ARS makes 4 sizes of our Colorado Artificial Va**na - 22", 19", 15", and 12". All sizes are available with either the large entry cuff, or a small cuff. If you're new to the Colorado AV, please visit our website at to view the assembly instructions: https://www.arsequine.com/av-assembly-instructions

ARS also carries a complete line of latex bladders and liners, as well as three types of disposable liners, along with our popular "DAVLA" disposable AV liner kits that come ready to use with an attached collection bottle and installed gel filter.

If you have questions, feel free to give us a call at 1-800-300-5143, Monday - Friday, 8:00 AM - 4:00 PM Pacific Standard Time, or refer to our website: www.arsequine.com

September Equine Reproduction classes at Colorado State University are open for registration now.  Sept. 17 and 18 (Embr...
07/29/2025

September Equine Reproduction classes at Colorado State University are open for registration now. Sept. 17 and 18 (Embryo Transfer and The Problem Mare) are continuing education for Veterinarians only. Sept. 19, Stallion Frozen Semen is open to vets, breeders, and technicians.
Follow the link below to sign up!

πŸ‚ Fall Into Learning at the ERL! πŸ‚
Ready to sharpen your skills and deepen your knowledge in equine reproduction? Join us this September for our Fall Continuing Education courses β€” hands-on, practical, and taught by leaders in the field. Register at www.cvmbs.colostate.edu/erl-store/in-person-courses

πŸ“… September 17 – Equine Embryo Transfer (DVM Only)
πŸ“… September 18 – The Problem Mare (DVM Only)
πŸ“… September 19 – Stallion Frozen Semen

Whether you're a seasoned vet, technician, or breeder, there's something here to boost your expertise. Space is limited β€” reserve your spot today and learn where science meets real-world application!

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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