Animal Reproduction Systems, Inc.

05/27/2026

Veterinarians looking to learn, or refresh their equine reproduction techniques - CSU is offering 3 excellent continuing education courses this September. Follow the link for more information and registration.

📣 Equine Reproduction CE Courses for Veterinarians Are Back!

Whether you’re looking to fine tune embryo transfer techniques, improve frozen semen management, or dive into an intensive reproduction boot camp, we have a course for you this fall.

Sept. 15 – Stallion Frozen Semen
Sept. 16 – Equine Embryo Transfer (DVM Only)
Sept. 17–18 – Equine Reproduction “Boot Camp” (DVM Only)

Hands-on learning. Expert instruction. Practical application. CSU Equine Reproduction is the place to be this fall!

05/26/2026

Colorado State University just released the dates for their Equine Reproduction Center and Laboratory continuing education courses. Mark your calendars, and register early!

05/21/2026

ARS will be closed on Monday, May 25, as we observe Memorial Day.

Orders placed after 10 AM on Friday, May 22nd, will ship on Tuesday, May 26.

If you are shipping temperature sensitive items (EZ Freezin extenders and IgG test kits), plan ahead for a shorter delivery week.

04/29/2026

Shipping cooled semen? ARS offers both the Equitainer and Travel Foal containers to get the job done!
Equitainers provide the best possible method of maintaining a consistent temperature in both hot and cold shipping conditions. The durable outer case is designed to withstand airport baggage handling for years, with a built-in shield to protect against x-rays, while the isothermalizer and freezer cans provide a consistent temperature for your shipment. ARS manufactures the Equitainer, tube style isothermalizers, and freezer cans. Replacement isothermalizers and freezer cans are available as well. For more information, or to place an order, go to:
https://www.arsequine.com/equitainer-i-shipper-tube-style

Our Travel Foal II containers offer a disposable, economical alternative to shipping cooled semen doses, available in cup, tube, and syringe styles depending on your packaging preference. Sold individually, or in bulk discounted 8-packs, each Travel Foal II container comes with instructions, and a dose report to effectively communicate with your clients. For more information, or to place an order, go to:
https://www.arsequine.com/travel-foal-ii-syringe-style-cooled-shipper

ARS is open Monday - Friday, 8:00 AM - 4:00 PM PST, with a knowledgeable staff available to answer your questions or help with an order. Yes, real live people answer the phone! If you need assistance, please call us at 1-800-300-5143.

04/29/2026

Our "EZ-Squeeze" foal rope was designed to administer this technique. To learn more about the Madigan Squeeze, take a look at the video on our website: https://www.youtube.com/watch?v=-oxGVrRzCYI
https://www.arsequine.com/e-z-squeeze-foal-rope

Have you heard of the Madigan Squeeze?

The Madigan foal squeeze is a veterinarian-performed technique that uses a soft rope arranged in a specific way to apply steady, snug pressure around a newborn foal’s chest/ribcage. Many foals respond to this firm pressure by lying down (“flopping”) and entering a quiet, sleep-like state (slow-wave sleep).

It’s used as an aid for foals with neonatal maladjustment syndrome (“dummy foal”), and it’s also used in healthy foals (typically < 3 days old) to make procedures like plasma administration, ultrasound exams, or other minor procedures easier and less stressful. The squeeze is usually maintained for about 20 minutes (generally limited to 20–30 minutes) while the foal’s breathing, heart rate, and mucous membrane color are monitored.

After the squeeze, the rope is released, and the foal is allowed to stay down or get up on its own. For maladjusted foals, the team then observes alertness and nursing behavior; in some cases, the squeeze may be repeated every 2–4 hours if needed.

Important safety note: this is not anesthesia, and a foal can arouse and kick, so it should only be done by skilled clinicians. It’s not recommended with suspected rib fractures, respiratory distress, septic shock, severe prematurity with floppy chests, severe neuromuscular disease affecting breathing, or congenital anomalies.

If you have questions or concerns about your own foal, contact your veterinarian.

📸 Photo courtesy of Pine Ridge Equine Hospital

04/23/2026

ARS now has Tris-EDTA solution in both 90 ml and 270 ml bottles!

Tris-EDTA solution is used in conjunction with antibiotics to treat bacterial endometritis in mares. Tris-EDTA breaks down the protective biofilm barrier surrounding gram-negative bacterial isolates, creating a significantly more effective antibiotic treatment of uterine infections.

The 90 ml vial provides three treatments when following the protocols provided in the "Formulary and Protocols in Equine Reproduction" book published by the Colorado State University Equine Reproduction Laboratory.

The 270 ml vial contains 9 treatments. It is recommended to use the contents of the bottle within 30 days of drawing the first dose.
Quantity discounts apply at 5-9 bottles, and 10 or more bottles.
Bacterial endometritis is an important cause of reduced fertility in mares.

This product should be used under the advise and recommendation of a veterinarian.

For additional information, or to place an order, go to our website: https://www.arsequine.com/tris-edta-90
or
https://www.arsequine.com/ars-tris-edta-270ml-vial

For the Formulary and Protocols in Equine Reproduction, go to:
https://www.arsequine.com/formulary-and-protocols-in-equine-reproduction-book-fourth-edition-2026
Or give us a call at 1-800-300-5143, Monday - Friday, 8 AM - 4 PM, Pacific Standard Time.

04/15/2026

Good information from the AAEP about donkey and mule foaling.

04/14/2026

ARS offers a colorful array of products to organize your frozen semen storage. From cane tabs, to 13mm goblets, to custom printed freezing straws, there are many options to make your stallions, bucks, rams, and dogs stand out in a deep freeze.

Our aluminum cane tabs are available in 7 colors, and provide a clean surface to write additional information. We sell them in packs of 100 tabs by the color (red, orange, yellow, green, blue, purple, and white), or in a multi-pack of 140 tabs (20 of each color). https://www.arsequine.com/multi-color-freezing-cane-tabs-140/pkg

The 13mm goblets hold up to 12 of the .5cc straws, and are available in packs of 100 goblets by individual color (red, yellow, green, blue, or clear), or in a multi-pack of 200 goblets (50 each of red, yellow, green, and blue).
https://www.arsequine.com/13mm-multi-color-goblets-200-pkg
* Don't forget the matching aluminum canes when ordering!

Our custom printed freezing straws are sold by units of 100 straws, in a choice of gold, orange, green, blue, or clear.

-Print is available on 2 lines, up to 53 characters per line.

-ARS recommends using ALL CAPITAL LETTERS.

-If you want a date line to fill in later, use 4-6 spaces between slash marks for room to write, and put it on the top line which is easier to fill in. Use a black ink permanent ultra fine tip Sharpie, and write the dates in before you fill and freeze the straws! 😉

-Timing is everything! Custom printing can take up to a week depending on the number of orders ahead of yours. We will get your order shipped within a week, but remember to calculate shipping time into your delivery date.

-In a rush? ARS does offer expedited service on our website for an additional $20 per 100 straws. Expedited service bumps your order to the front of the line, and ships the next business day.

-If you have other items on your straw order, they will ship when the straws are done. If you need supplies sooner than the straws, please place 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, 8:00 AM - 4:00 PM Pacific Standard Time. Real people, with lots of experience, will answer the phone and help you with your order. If the line is busy, please leave a message - we will call you back!

04/02/2026

Shipping cooled semen? Is your shipment protected from both hot and cold outer temperatures? With a durable outer case, reliable seal, and built-in protection from X-rays, the Equitainer has been the gold standard of shipping containers for decades.

Animal Reproduction Systems, Inc. manufacturers the Equitainer shipping container line. We are proud to carry on the tradition of excellence created by its founder, the late Meg Hamilton, and look forward to supplying both new and loyal customers with this quality container and its components.

Along with complete Equitainers, we also manufacture and sell replacement Freezer Cans, and the Tube Style Isothermalizers.

ARS also plans to bring back the Cup Style Equitainer and Cup Style Isothermalizer, as well as the Equocyte embryo transportation container. Look for announcements regarding these products later this year.
To order, go to: https://www.arsequine.com/equitainer-i-shipper-tube-style

or give us a call at 1-800-300-5143, Mon-Fri 8:00 AM - 3:00 PM

03/31/2026

Some things just go together - peanut butter and jelly, peas and carrots, and our LED speculum light and disposable vaginal speculums.
Our LED speculum light features a bright, focused beam, with a slim case that has a handy clip, allowing hands free use while it's clipped inside our disposable speculums. Our disposable speculums have a reflective inner surface, allowing for brighter viewing, and come sterilized, individually wrapped in packs of 10.

To order, go to: https://www.arsequine.com/disposable-vaginal-speculum-sterilized-10/pkg

Or give us a call at 1-800-300-5143, 8:00 AM - 4:00 PM, Monday - Friday.