Equi-Ferm XL® Prebiotic & Probiotic Horse Supplement

Equi-Ferm XL® Prebiotic & Probiotic Horse Supplement

A research-proven pre- and probiotic supplement designed to support your horse’s digestive health and improve total diet digestibility.

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    • Details
    • Feeding Instructions
    • Nutritional Info


    Equi-Ferm XL® is a microencapsulated (protected), pelleted pre- and probiotic supplement. It contains a strain of the live yeast Saccharomyces cerevisiae that was specially selected through laboratory screening of hundreds of strains. This specific strain has been shown to positively influence the bacterial population in the hindgut of the horse. Promoting the growth of beneficial, fiber-digesting bacteria helps to increase the digestibility of the total diet, including forages. Equi-Ferm XL® also stabilizes hindgut pH. It does this by promoting the growth and activity of beneficial bacteria, even during times of stress or feeding diets higher in sugar & starch (NSC). Though already added to all Tribute® feeds, we recommend feeding your horse additional Equi-Ferm XL® during times of stress (including travel or competition), when hay quality is poor, when changing hay sources, following antibiotic treatment or when signs of hindgut upset are observed.


    • Microencapsulation of the live yeast allows it to reach the hindgut.
    • Stabilizes hindgut pH by promoting the growth of beneficial bacteria.
    • Improves the digestibility of the total diet by supporting growth of fiber-digesting bacteria.

    Feeding Instructions

    Maintenance level when NOT feeding Tribute® feeds or during periods of stress when feeding Tribute® feeds:
    Foals: 1.0 oz/day
    Mares/Stallions/Geldings: 2.0 oz/day
    Show/Performance Horses: 2.0 oz/day

    During periods of stress when NOT feeding Tribute® feeds:
    Foals: 2.0 oz/day
    Mares/Stallions/Geldings: 4.0 oz/day
    Show/Performance Horses: 4.0 oz/day

    *All Tribute® Equine Nutrition feeds contain at least the recommended maintenance level of Equi-Ferm XL®, but some horses may benefit from additional during times of stress.

    Guaranteed Analysis

    Crude Protein (Min.): 12.00%
    Crude Fat (Min.): 3.00%
    Crude Fiber (Max.): 14.00%
    Lysine (Min.): 0.60%
    Methionine (Min.): 0.20%
    Cysteine (Min.): 0.25%
    Threonine (Min.): 0.50%
    Vitamin A (Min.): 35,000 IU/lb
    Vitamin D (Min.): 7.500 IU/lb
    Vitamin E (Min.): 180 IU/lb

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    Micro-Encapsulated Dry Active Saccharomyces cerevisiae (CNCM I-1077), Micro-Encapsulated Dry Active Saccharomyces cerevisiae, Dried Saccharomyces cerevisiae Fermentation Solubles, Dehydrated Alfalfa Meal, Soybean Hulls, Wheat Middlings, Dried Molasses, Spray Dried Hydrolyzed Saccharomyces cerevisiae yeast product, Kelp Meal, Vitamin A Supplement, Vitamin E Supplement, Vitamin D3 Supplement, Biotin Supplement, Folic Acid, Vitamin B12 Supplement, Calcium Pantothenate, Niacin, Riboflavin, Thiamine Mononitrate, Menadione Sodium Bisulfite Complex (Source of Vitamin K), Garlic, Garlic Oil, Thyme, Cinnamaldehyde, Rosemary Oil, Natural and Artificial Flavors