Date published: 2026-6-10

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Probiotics for Horses Supplement – UltraCruz®

by Santa Cruz Animal Health
4.8(150)
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Equine digestive supplement that offers both probiotics and prebiotics to support a healthy digestive tract
    • Ideal for horses or foals stressed from diet changes, antibiotic treatment and exercise
    • Diverse range of highly concentrated probiotics to help support a healthy intestinal microflora
    • Contains high levels of Enterococcus, Lactobacillus and Saccharomyces probiotic species
    • Also includes prebiotics to offer additional support for intestinal microflora
    • Provides Probiotics as an easy to use pellet; also available in powder form
    • Available as UltraCruz® Singles; convenient, pre-measured, single servings that stay fresh and ensure accurate serving sizes.
    • Developed and manufactured in the USA with globally-sourced ingredients by Santa Cruz Animal Health
    • Highly recommended by others, see testimonials in tab below
    • Same day shipping on in-stock items ordered before 3:00 PM Central Time Monday-Friday.
    • DISCOUNT: Bulk orders of UltraCruz® Animal Health products totaling $500 or more receive a 5% discount.
Catalog #DescriptionPriceQtyAutoshipCARTFAVORITES
sc-516411
5 lb, pellet, 80 day supply
$69.95Autoship: $66.45
sc-516412
25 lb, pellet, 400 day supply
$329.95Autoship: $313.45
sc-516413
60 singles, pellet, 60 day supply
$99.95Autoship: $94.95
sc-394514
5 lb, powder, 150 day supply
$31.95Autoship: $30.35
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Why Autoship?

Never forget a shipment so you're always stocked.

Saves you 5% on UltraCruz® products.

You manage the frequency or cancellation to fit your needs.

Free shipping within the contiguous US on orders over $75. Alaska, Hawaii and US Territories, please contact Customer Care for shipping fees.

UltraCruz® Equine Probiotic Supplement for Horses

  • Diverse range of beneficial microorganisms
  • Highly concentrated CFU (Colony Forming Units)
  • Prebiotics for additional microflora support
  • For use in horses and weaned foals
  • Now in an easy-to-use pellet form

Each horse has a unique intestinal microflora, and as such, will have unique needs for different probiotic species. It is difficult to determine which microbial species are most needed for each horse, therefore, UltraCruz® Equine Probiotic Supplement for Horses is formulated to contain a highly concentrated, comprehensive collection of key Probiotics and Prebiotics to help maintain digestive health in horses and weaned foals. This probiotic supplement contains some of the highest levels available on the equine market of 6 different microbial strains: Enterococcus faecium, Lactobacillus acidophilus, Lactobacillus casei, Lactobacillus plantarum, and Saccharomyces cerevisiae.

Probiotics for Horses Supplement - CD Diamond's Foal with Whizs Guinevere

UltraCruz® Equine Probiotic Supplement for Horses may be especially beneficial to help maintain digestive health during stressful events or changes in diet. An imbalance of intestinal flora can impact weight gain or loss. Some microbial strains have been shown to improve weight loss while others benefit weight gain; however, the proper balance for one horse may not be the same as the next. UltraCruz® Equine Probiotic Supplement for Horses was formulated to contain a diverse range of proven microbial strains to help ensure that your horse's needs are met. Provided in easy-to-use pellet or powder forms.

Prebiotics are sources of non-digestible, soluble fiber that serve as food for Probiotics, also known as the "good bugs", to help increase the number of beneficial bacteria present in the large intestine. 

For additional gastrointestinal support we suggest UltraCruz® Equine Bio-Absorb Supplement for Horses.

Also provided in paste form: UltraCruz® Equine Probiotic Paste Supplement for Horses

References:

  1. Prebiotic effects: metabolic and health benefits.  |  Roberfroid, M., et al. 2010. Br J Nutr. 104 Suppl 2: S1-63. PMID: 20920376
  2. Probiotics in animal nutrition and health.  |  Chaucheyras-Durand, F. and Durand, H. 2010. Benef Microbes. 1: 3-9. PMID: 21840795
  3. The life history of Lactobacillus acidophilus as a probiotic: a tale of revisionary taxonomy, misidentification and commercial success.  |  Bull, M., et al. 2013. FEMS Microbiol Lett. 349: 77-87. PMID: 24152174
  4. Probiotic use in horses - what is the evidence for their clinical efficacy?  |  Schoster, A., et al. 2014. J Vet Intern Med. 28: 1640-52. PMID: 25231539
  5. Probiotic potential of Lactobacillus isolated from horses and its therapeutic effect on DSS-induced colitis in mice.  |  Qin, S., et al. 2022. Microb Pathog. 165: 105216. PMID: 34600098
  6. Assessment on In Vitro Probiotic Attributes of Lactobacillus plantarum Isolated From Horse Feces.  |  Khusro, A., et al. 2021. J Equine Vet Sci. 107: 103769. PMID: 34802630
  7. The Role of Yeast Saccharomyces cerevisiae in Supporting Gut Health in Horses: An Updated Review on Its Effects on Digestibility and Intestinal and Fecal Microbiota.  |  Perricone, V., et al. 2022. Animals (Basel). 12: PMID: 36552396
  8. Gastro-Intestinal Microbiota in Equines and Its Role in Health and Disease: The Black Box Opens.  |  Chaucheyras-Durand, F., et al. 2022. Microorganisms. 10: PMID: 36557769
  9. Effect of an In Vitro Proximal Gastrointestinal Tract on Viability of Commercially Available Equine Probiotics  |  Ana Berreta, Jamie J.Kopper, Trevor L.Alexander, Clark J.Kogan, Claire R. Burbick. 2021. Journal of Equine Veterinary Science. Vol, 104.

Try UltraCruz® Singles

Pre-measured, single servings of your horse's supplements for fast feeding, autoshipped for convenience and accuracy.

Probiotics for Horses Supplement - UltraCruz Equine Probiotic Single Serving Packages
  • Convenient, individually packaged servings
  • Retains supplement potency
  • Accurate Dosage
  • Auto-ship available
  • Perfect for traveling

UltraCruz® Horse Probiotic Supplement: One UltraCruz® Singles packet equals one fresh, pre-measured daily dose.

Pellet vs. Powder Supplement Formulations

Most UltraCruz® Equine Supplements are now available in pelletized formulations. By using pellets, rather than powder, we have been able to:

Probiotics for Horses Supplement - Piles of Equine Supplement pellets
  • Ensure stability of active ingredients
  • Maximize product freshness
  • Reduce waste

All San Juan Ranch performance and breeding horses use UltraCruz® Equine pelletized products.

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