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 some good suggestions for helping your horses handle the fireworks on the 4th of July.
06/30/2025

AAEP has some good suggestions for helping your horses handle the fireworks on the 4th of July.

With the just around the corner, now is a good time to make preparations to keep your horses, farm animals and pets safe during any fireworks that will be happening in your area. 🎆

The graphic below lists some tips to get you started. If your horses are staying out overnight, be sure to check your fencing ahead of time and neutralize any hazards like rocks, branches or holes that could lead to injury if the animals start bolting. If you are really worried about your horse's safety, consult your veterinarian about calming agents and sedatives.

No matter what your Independence Day plans are, above all please remember to practice safety and be considerate of the people and the animals living around you so EVERYONE may have an enjoyable celebration. Happy 4th!

Thank you to our Horse Owner Education Committee for providing this information.

ARS will be closed Friday, July 4, 2025 so our employees can spend Independence Day with their families (both 2 and 4-le...
06/27/2025

ARS will be closed Friday, July 4, 2025 so our employees can spend Independence Day with their families (both 2 and 4-legged). Orders received after 10:00 AM PST on Thursday, July 3, will ship when we return to the office on Monday, July 6.

If you are ordering temperature sensitive products (E-Z Freezin extender and IgG tests) to ship next week, please plan to ship on Monday, with Overnight or 2-day service so your goods arrive before the July 4th holiday.

A little preparation goes a long way when making a vet visit productive and pleasant.
06/24/2025

A little preparation goes a long way when making a vet visit productive and pleasant.

Looking for a centrifuge for your breeding lab?  ARS has you covered!  We offer 4 variations of the ELMI 7S Plus model c...
06/19/2025

Looking for a centrifuge for your breeding lab? ARS has you covered! We offer 4 variations of the ELMI 7S Plus model countertop centrifuge - choose from a 4 bucket or 6 bucket rotor to handle your 50ml centrifuge tubes, or add the 15 ml adapter tube option for the smaller centrifuge tubes (i.e. for blood samples, or canine semen).
ELMI centrifuges are reliable, quiet, feature easy to program RPM selection, and carry a 2 year manufacturer warranty.

To order, or learn more about these centrifuges, go to our website: https://www.arsequine.com/countertop-centrifuge-with-6x50ml-swinging-bucket-rotor-with-inserts
Or give us a call at 1-800-300-5143, Monday - Friday, 8:00 AM - 4:00 PM

Happy Veterinary Appreciation Day!
06/18/2025

Happy Veterinary Appreciation Day!

Today is ! Join us in celebrating all the veterinary professionals that help our animals (especially our horses) live long, happy and healthy lives.

If you are looking for ways to say “thank you” to your veterinary team, there are plenty of options. However, it’s very possible that the best way to thank your horse doctors and equine vet techs is to make their job easier.

Some small things can make the biggest difference; check out this graphic for a few simple ways you can ease the strain on your veterinarians and show them your appreciation. No matter how you choose to say thank you today, there is no doubt you will brighten your vet team’s day!

Lastly, show some love for your veterinarian in the comments below and tag them, some words of encouragement and appreciation are sure to bring a smile to their face! ⬇️

Congratulations, Doctors!
06/13/2025

Congratulations, Doctors!

Interesting article regarding colostrum quality correlating to larger, healthier foals.  ARS offers a refractometer spec...
06/13/2025

Interesting article regarding colostrum quality correlating to larger, healthier foals. ARS offers a refractometer specifically calibrated for mare's milk: https://www.arsequine.com/equine-colostrum-refractometer

Researchers highlighted the correlation between the quality of a mare’s colostrum and her foal’s health in the 130 days after birth.

Great opportunity for the right person...
06/12/2025

Great opportunity for the right person...

We’re looking for an Asst. Broodmare manager. Please apply if you’re interested or share with others that might be

Summer is here...this about sums it up!
06/11/2025

Summer is here...this about sums it up!

Welcome to summer

ARS prints custom freezing straws!  Print is available on 2 lines, up to 53 characters per line.  These high quality .5m...
06/11/2025

ARS prints custom freezing straws! Print is available on 2 lines, up to 53 characters per line. These high quality .5ml straws are available in orange, green, clear, blue, and gold, and sold per 100 straws.

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.

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.

Interesting 1 year position at Oregon State University in Corvallis, Oregon, for an experienced equine/large animal vete...
06/11/2025

Interesting 1 year position at Oregon State University in Corvallis, Oregon, for an experienced equine/large animal veterinarian.

The Department of Veterinary Clinical Sciences in the Carlson College of Veterinary Medicine invites applications for a full-time (1.00 FTE), 12-month, fixed-term, Instructor position. Reappointment is at the discretion of the Department Head. The Carlson College of Veterinary Medicine provides prof...

If you're planning a trip to the Pacific Northwest this summer, add the Northwest Carriage Museum to your list of "must ...
06/10/2025

If you're planning a trip to the Pacific Northwest this summer, add the Northwest Carriage Museum to your list of "must see" locations!

Address

Ontario, CA

Opening Hours

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

Telephone

+19093641311

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