McCauley Bros. Feed Announces Partnership With Trillium Sport Horses’ Erin MacDonald

McCauley Bros. Feed, an Alltech company, is proud to announce a partnership with Erin MacDonald, the head trainer at Trillium Sport Horses and the New Vocations Racehorse Adoption Program facility near Ocala, Florida.

Edited Press Release

[LEXINGTON, Ky.] –  McCauley Bros. Feed, an Alltech company, is proud to announce a partnership with Erin MacDonald, the owner of and trainer at Trillium Sport Horses, located near Ocala, Florida.

“It is a true honor to partner with Erin,” said Tim Karl, director of Alltech’s lifestyle and companion animal business. “Her passion for what she does shines through in every aspect of how she manages her horses, and we’re proud to provide her farm with premium nutrition that has been designed with sport horses in mind.”

MacDonald is a successful Canadian three-star event rider with a keen eye for sourcing and developing prospects.

Some of her career highlights include:

  • Placing 8th/9th in the Nutrena American Eventing Championships
  • Being a team bronze medalist at the North America Junior Young Rider Championship (NAJYRC) CCIY*** and Top Canadian, finishing 9th individually 
  • Top Ontario Horse Trials Association (OHTA) Intermediate Young Rider
  • Placing 8th in eventing at the 2020 Retired Racehorse Project (RRP) Thoroughbred Makeover

Seeking to expand and offer her experience and services to the wider equine industry, MacDonald founded Trillium Sport Horses in 2015. She specializes in working with off-the-track Thoroughbreds (OTTBs), slowly and properly re-training them to excel in their new careers post-racing.

MacDonald currently partners with the New Vocations Racehorse Adoption Program, the oldest and largest racehorse adoption program in the country. Founded in 1992, New Vocations works with over 500 new horses annually. Through partnerships with qualified trainers, the program focuses on rehabilitating, retraining and rehoming retired racehorses.

In January of 2022, New Vocations — accredited by both the Thoroughbred Aftercare Alliance and the Standardbred Transition Alliance — partnered with MacDonald to open a satellite facility at Trillium Sport Horses.

MacDonald stays busy with the athletes she is entrusted with, often retraining up to six horses per month and rehoming one Thoroughbred per week. She first learned about McCauley Bros. Feed from a local feed representative.

“I started using McCauley’s after searching for a quality grain that would complement my retraining and rehoming program, which is primarily focused on OTTBs,” MacDonald said. “I was looking for cool calories that would help me manage harder keepers, as well as a grain that wouldn’t inflame any preexisting GI issues. I settled on ALAM®, which is unlike anything else on the market. I genuinely attribute the flow of healthy, happy horses leaving the farm to this outstanding product.”

To learn more about McCauley Bros. Feed, visit For horse care and nutrition tips, follow @mccauleysfeeds on Facebook and Instagram.