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Microbial-based Additives - Feed Ingredient

Microbial-based additives include live microorganisms such as yeasts (Saccharomyces cerevisiae) and bacteria (Lactobacillus, Bifidobacterium, Enterococcus), as well as their derivatives like bacterial or yeast extracts and fermentation products. These additives are used in equine feeds to support gut microbial balance, improve fiber digestion, and enhance nutrient utilization.
Extracts and postbiotics may include cell wall components (e.g., beta-glucans, mannan-oligosaccharides) or fermentation metabolites that influence gut function and immunity. Enzymes produced through microbial fermentation, such as cellulase or xylanase, may also be included to assist in the breakdown of fibrous feed components.

The following equine feeds, supplements and products contain Microbial-based Additives as an ingredient.

Feeds, Supplements & Products
AminoTrace+ Vitamin and Mineral Supplement (Mad Barn)
Hoof HealthHoof Health
Metabolic SyndromeMetabolic Syndrome
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
AminoTrace+ by Mad Barn is a complete, balanced equine mineral and vitamin supplement designed for horses with metabolic concerns. It is ideal for horses with IR, PPID, or high iron in the diet.
Natural E/Organic Se (Mad Barn)
AntioxidantAntioxidant
Organic Trace MineralsOrganic Trace Minerals
RecoveryRecovery
VitaminsVitamins
Natural E/Organic Se is a pelleted supplement providing organic Selenium yeast and natural Vitamin E. These two nutrients are important antioxidants that support muscle function and anti-inflammatory pathways.
Omneity P – Pellets – Vitamin & Mineral Supplement (Mad Barn)
Gut HealthGut Health
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
Ration BalancerRation Balancer
Omneity Pellets is a balanced mineral and vitamin supplement for horses in a palatable pellet form. It provides 100% organic trace minerals, complete B-vitamin fortification, added Vitamin E, yeast and digestive enzymes.
Omneity Premix – Vitamin & Mineral Supplement (Mad Barn)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Omneity Premix is a balanced mineral and vitamin supplement for horses providing 100% organic trace minerals, complete B-vitamin fortification, added Vitamin E, yeast, and digestive enzymes.
Optimum Digestive Health Pellets (Mad Barn)
DigestionDigestion
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
ProbioticProbiotic
Optimum Digestive Health from Mad Barn is a probiotic and prebiotic supplement designed to support hindgut health in the horse. It helps to maintain a stable microflora and promote immune health.
Optimum Probiotic (Mad Barn)
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
ProbioticProbiotic
Mad Barn's Optimum Probiotic is a pure 5-strain probiotic supplement in a powdered format. It provides 20 billion CFU per serving of L. acidophilus, L. fermentum, L. casei, L. plantarum, and L. farciminis.
Trace Mineral Pak (Mad Barn)
Coat QualityCoat Quality
ExerciseExercise
Hoof HealthHoof Health
Organic Trace MineralsOrganic Trace Minerals
Trace Mineral Pak from Mad Barn is a balanced equine supplement providing 100% organic (chelated) trace minerals. Ingredients include selenium, zinc, copper, and manganese.
Visceral+ (Mad Barn)
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
ProbioticProbiotic
UlcersUlcers
YeastYeast
Visceral+ by Mad Barn is a pelleted supplement to be used for horses with gastric health concerns. It is designed to maintain stomach and hindgut health and to support the immune system.
High Point-Alfalfa Hay (HorseTech)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
High Point- Alfalfa from HorseTech is a vitamin and mineral supplement which is designed to be fed in alfalfa-based diets. The 3-ounce feeding rate provides phosphorus and essential vitamins as well as trace minerals.
High Point-Grass/Mixed Hay (HorseTech)
HealthHealth
ProbioticProbiotic
Ration BalancerRation Balancer
VitaminsVitamins
High Point-Grass/Mixed Hay is a vitamin-mineral supplement formulated for horses consuming grass or mixed hay diets. This supplement provides a higher calcium-phosphorous ratio.
High Step (Equi-lete)
Easy KeeperEasy Keeper
Hoof HealthHoof Health
ImmunityImmunity
Skin + HairSkin + Hair
High Step by Equi-lete is a vitamin and mineral supplement intended to support overall health in pleasure horses, easy keepers and non-performance horses.
High VAULTage (Equi-lete)
HealthHealth
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
High VAULTage by Equi-lete is a vitamin and mineral supplement intended to support health, performance and recovery in performance horses and hard keepers.
Hiland’s Big Sky Mineral (Hiland Supply Co. Ltd)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Hiland's Big Sky Mineral by Hiland Supply Co. Ltd is a mineral supplement intended to support overall health in all horse types.
Hilyses – Yeast-Based Additive
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
YeastYeast
Hilyses by Yorkag is a yeast-based feed additive that provides prebiotics, B-vitamins, and amino acids. It can be used as a protein supplement for horses.
Hoof (ProElite)
Amino AcidAmino Acid
Coat QualityCoat Quality
Hoof HealthHoof Health
Skin + HairSkin + Hair
Hoof by Pro Elite is a powdered supplement rich in protein and biotin. It is formulated to support hoof and coat health.
Hoof Biotin (Uckele)
HealthHealth
Hoof HealthHoof Health
NutrientsNutrients
NutritionNutrition
Hoof Biotin is a biotin, zinc, and methionine hoof supplement designed to support hoof and tissue growth and maintenance. The zinc specifically can support the production of proteins in skin, hair, and hooves. It supplies 16 mg of biotin per 5-gram scoop.
Hoof Care (DuMor)
Amino AcidAmino Acid
Hoof HealthHoof Health
Mineral BalanceMineral Balance
ProbioticProbiotic
Hoof Care by DuMor is a pelleted hoof supplement that provides 30 mg of biotin per serving for all classes of horses and ponies. It also contains amino acids, organic zinc and copper to support hoof growth.
Hoof Formula (Kevin Bacon’s Horse Care) – [Discontinued]
Amino AcidAmino Acid
Competition HorsesCompetition Horses
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Hoof Formula from Kevin Bacon's Horse Care is a now discontinued hoof supplement that supports hoof growth and quality. It contains added protein, calcium, vitamin A, biotin and other minerals.
Hoof Health Pellets (Formula 707)
Amino AcidAmino Acid
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
This hoof supplement from Formula 707 contains minerals and amino acids meant to support hoof health.
Hoof Helper (The Mill)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
Mill Hoof Helper is a pelleted vitamin, mineral and amino acid supplement for horses to support hoof health. A 3 oz serving provides 20 mg of biotin.
Hoof Medic (AniMed)
Amino AcidAmino Acid
Hoof HealthHoof Health
NutrientsNutrients
VitaminsVitamins
AniMed’s Hoof Medic contains the amino acids lysine and methionine, as well as zinc and biotin. These nutrients support hoof growth and strengthen the hoof wall.
Hoof Medic Crumblet (AniMed – Plateau)
Amino AcidAmino Acid
GrowthGrowth
Hoof HealthHoof Health
NutrientsNutrients
Hoof Medic Crumblet from AniMed's Plateau helps to maintain healthy hooves. It also aims to support hoof growth by containing biotin among other nutrients.
Hoof Mender 75 Supplement Pellets (Equimins)
Amino AcidAmino Acid
Hoof HealthHoof Health
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Equimins Hoof Mender 75 is a hoof care supplement providing 75 mg of biotin per day as well as zinc and amino acids. Research indicates benefits from feeding 20-30 mg of biotin to horses for hoof health, but has not demonstrated additive benefits of higher feeding rates.
Hoof Organic (Advanced Biological Concepts)
HealthHealth
Hoof HealthHoof Health
ImmunityImmunity
VitaminsVitamins
Hoof Organic from Advanced Biological Concepts is a pelleted hoof supplement for horses. Hoof Organic is fortified with trace minerals and biotin intended for hoof growth.
Hoof Power (Mustad)
Amino AcidAmino Acid
Hoof HealthHoof Health
Mineral BalanceMineral Balance
VitaminsVitamins
Hoof Power is a pelleted hoof supplement containing biotin, zinc, copper and additional amino acids including methionine. These nutrients are important for hoof growth and quality.
Hoof Pro Plus (Excel Equine)
HealthHealth
Hoof HealthHoof Health
NutrientsNutrients
RecoveryRecovery
Hoof Pro Plus by Excel Equine is a pelleted hoof supplement formulated to support normal hoof growth and overall hoof quality. It contains biotin, methionine, calcium, and zinc.
Hoof Restore (McIntosh Pro Line)
Amino AcidAmino Acid
Hoof HealthHoof Health
Organic Trace MineralsOrganic Trace Minerals
YeastYeast
Hoof Restore is an equine hoof supplement formulated with MSM, dl-methionine, biotin, l-lysine, and organic zinc. These nutrients are important for hoof growth and quality.
Hoof Secret (Cox Vet Lab)
Amino AcidAmino Acid
Hoof HealthHoof Health
Mineral BalanceMineral Balance
VitaminsVitamins
Hoof Secret from Cox Vet lab is an equine supplement intended to support hoof health. Hoof Secret is a palatable alfalfa - based pellet.
Hoof Supplement Plus (Farrier’s Magic)
Amino AcidAmino Acid
Hoof HealthHoof Health
Mineral BalanceMineral Balance
VitaminsVitamins
Hoof Supplement Plus is intended for horses and ponies of all ages to help support healthy hooves and coat. It contains high levels of biotin.
Hoofefex (Basic Equine Nutrition)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Hoofefex is a hoof supplement containing a blend of four micronutrients (biotin, zinc, copper and manganese) important for supporting hoof health. It also contains MSM, kelp and brewer's yeast. Each serving provides 20 mg of biotin.
Hooflex (Absorbine)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
PrebioticPrebiotic
Hooflex is a supplement from Absorbine that aims to support hoof health and strength. It contains minerals, prebiotics, and omega 3s.
HoofPRO Pellets (Horse Logic Pro) – [Discontinued]
Amino AcidAmino Acid
HealthHealth
Hoof HealthHoof Health
ImmunityImmunity
HoofPRO Pellets from Horse Logic Pro is a pelleted hoof supplement. HoofPRO Pellets is intended to improve hoof quality. This supplement is 18% crude protein and 3% fat.
HoofSOLID (Durvet)
DigestionDigestion
Gut HealthGut Health
Hoof HealthHoof Health
NutritionNutrition
HoofSOLID by Durvet is a pelleted hoof and digestive supplement intended for all classes of horses.
Horse & Pony Cubes (Bluegrass Horse Feed)
CalmingCalming
ExerciseExercise
HealthHealth
VitaminsVitamins
Horse and Pony Cubes are an oat-free pelleted feed. It is intended for horses and ponies of all ages and in light to moderate work. It contains 10% protein, 2.4% fat, and 15.7% fibre.
Horse Block (DuMor)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
ProteinProtein
DuMor Horse Block is a vitamin, mineral, and protein supplement for horses in a block format. It contains predominantly inorganic trace minerals and is intended to be offered free choice.
Horse Crunchies (Hoffman’s Horse Products)
Easy KeeperEasy Keeper
FlavorFlavor
HealthHealth
NutritionNutrition
Horse Crunchies from Hoffman's is a cubed treat for horses. Horse Crunchies are 22% NSC and are intended to be a healthy treat option for horses.
Horse Cubes (Alfa Force Equine)
HealthHealth
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
NutritionNutrition
Horse Cubes by Alfa Force Equine is a pelleted feed intended for all classes of horses.
Horse Guard
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Horse Guard is a pelleted, concentrated vitamin-mineral supplement designed for all classes of horses. The recommended feeding rate is 2 oz per day.
Horse Low Starch Ration Balancer (Modesto Milling)
FiberFiber
ProteinProtein
Ration BalancerRation Balancer
VitaminsVitamins
Horse Low Starch Ration Balancer from Modesto Milling is a ration balancer containing 20% protein, 19% fiber and 9.7% fat. It also contains vitamins and minerals.
Horse Mineral (Hoffman’s Horse Products)
DigestionDigestion
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Hoffman's Horse Mineral is an equine mineral and vitamin supplement primarily intended for free-choice feeding large herds. It does not contain sugars, grains, or added starches.
Horse Nugget (Alfa Force Equine)
HealthHealth
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
NutritionNutrition
Horse Nugget by Alfa Force Equine is a pelleted feed intended for all classes of horses.
Horse Pellet 110 Plus (Bartlett Milling) [Discontinued]
Complete FeedComplete Feed
HealthHealth
NutritionNutrition
ProteinProtein
Horse Pellet 110 Plus is an 11% protein and 5% fat complete feed with added lysine and methionine. Energy sources include wheat middlings, ground corn, soybean hulls, and alfalfa meal.
Horse PLUS (Modesto Milling)
Caloric EnergyCaloric Energy
GrainsGrains
NutritionNutrition
ProteinProtein
Horse PLUS by Modesto Milling is a textured horse feed made using mostly organic ingredients. This feed contains grains, alfalfa, coconut meal, sunflower seeds, carrot pellets, flaxseed as well as added vitamins and minerals. It provides 12% crude protein, 4.5% fat and 13% crude fiber.
Horse Plus (Thrive Essential)
Mineral BalanceMineral Balance
PrebioticPrebiotic
ProbioticProbiotic
ProteinProtein
Horse Plus by Thrive Essential is a powdered daily vitamin and mineral supplement intended for all classes of horses. It is high in protein, and contains pre- and probiotics although the concentration is not disclosed.
Horse Senior Pellets (Modesto Milling)
Caloric EnergyCaloric Energy
GrainsGrains
ProteinProtein
SeniorSenior
Horse Senior Pellets by Modesto Milling is a concentrate feed that provides supplemental energy, vitamins, and minerals with mainly organic ingredients. The pellets contain 14% crude protein, 7.2% fat and 13.5% crude fiber.
Horse Shield (Purina)
DigestionDigestion
ImmunityImmunity
VitaminsVitamins
YeastYeast
Purina Horse-Shield is an equine supplement formulated to support the immune system and digestion. It contains Diamond V XPC Ultra yeast culture and Saccharomyces cerevisiae.
Horse Supplement Pellets (Modesto Milling)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Modesto Milling Horse Supplement Pellets is a pelleted source of energy, protein, vitamins, and minerals that can be added to a horse ration. The pellets are made with organic oats, alfalfa, coconut meal, and sesame meal.
Horse Tub (Agassiz Feeds)
HealthHealth
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Horse Tub by Agassiz Feeds is a molasses-based protein, energy, mineral, and vitamin lick. It is designed for free-choice use and contains a minimum of 14% crude protein.
Horse-Manna Performance Supplement (Manna Pro)
Caloric EnergyCaloric Energy
DigestionDigestion
PerformancePerformance
ProteinProtein
Horse-Manna Performance Supplement is intended to supplement energy and protein in an equine ration. It contains soybean meal, corn, hominy, oatmeal, whey, and linseed meal.
Horse-Manna Vitality Supplement (Manna Pro)
Coat QualityCoat Quality
FatFat
ProteinProtein
YeastYeast
Horse-Manna Vitality Supplement contains soybean meal, flaxseed, whey, and alfalfa meal to add protein to the equine ration. It also provides some minerals and vitamins.
Horseman’s Elite Horse/Mare Cubes (Bluebonnet Feeds)
BroodmareBroodmare
FiberFiber
FoalFoal
GrowthGrowth
Horseman's Elite Horse/Mare Cubes from Bluebonnet is a pasture supplement intended for broodmares. It comes in a 3/4" cube format and contains organic minerals.
Horseman’s Elite Mare & Foal Nugget (Bluebonnet Feeds)
BroodmareBroodmare
FoalFoal
GrowthGrowth
NutrientsNutrients
Horseman's Elite Mare & Foal Nuggets from Bluebonnet is a pelleted feed intended for pregnant, lactating, and growing horses. It provides 16% crude protein and contains soybean oil for added calories.
Horseman’s Elite Pelleted (Bluebonnet Feeds)
GrainsGrains
NutrientsNutrients
PerformancePerformance
ProbioticProbiotic
Horseman's Elite Pelleted feed from Bluebonnet Feed is intended for horses of all life stages and exercise levels. It contains 14% crude protein, added fat from soybeans, organic minerals, and biotin.
Horseman’s Elite Senior Care (Bluebonnet Feeds)
Mineral BalanceMineral Balance
ProteinProtein
SeniorSenior
VitaminsVitamins
Horseman's Elite Senior Care from Bluebonnet is a pelleted feed intended for senior horses who have trouble chewing. It contains alfalfa meal, rice hulls, soybean meal, and molasses as a source of energy.
Horseman’s Elite Ultra Fat (Bluebonnet Feeds)
Caloric EnergyCaloric Energy
NutrientsNutrients
PerformancePerformance
ProbioticProbiotic
Horseman's Elite Ultra Fat from Bluebonnet Feeds is a pelleted feed intended for horses at all life stages. This feed contains added soybean oil as a source of fat. It supplies 10% protein, 10% fat, and 18% fibre.
Horseshoer’s Secret Concentrate (Farnam)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
Omega 3-6-9Omega 3-6-9
Horseshoer's Secret Concentrate is a pelleted hoof supplement that provides 25 mg of biotin per 2 oz serving. It also provides minerals, amino acids, yeast cultures and essential fatty acids.
Horseshoer’s Secret Extra Strength (Farnam)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
Organic Trace MineralsOrganic Trace Minerals
Horseshoer's Secret Extra Strength is an equine supplement intended to support hoof and connective tissue. It contains amino acids, minerals, biotin, yeast and other ingredients.
Horseshoer’s Secret Pellet (Farnam)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
ProteinProtein
VitaminsVitamins
Horseshoer's Secret Pellet by Farnam is a pelleted hoof supplement that contains 15 mg of biotin per serving. This supplement also contains protein, minerals, and amino acids to help prevent cracked hooves and strengthen hoof walls.

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