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Microbial-based Additives

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.

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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.
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 gut supplement designed to support stomach and hindgut health in horses. It helps maintain normal digestive function, supports gastric comfort, and helps maintain the immune system.
Equine Aged/Adult Diet (Ace Hi Feeds)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
NutritionNutrition
SeniorSenior
Equine Aged/Adult Diet by Ace Hi Feeds is intended for mature or senior horses. It is available with or without molasses and contains added vitamins and minerals. This is a textured feed meant to be fed alongside a forage.
Equine BlueLite Pellet (Techmix)
ElectrolyteElectrolyte
ExerciseExercise
HydrationHydration
PerformancePerformance
Equine BlueLite Pellet is a supplement that provides the major electrolyte minerals including sodium, chloride, potassium, calcium, magnesium, and phosphorous. It also contains vitamin E as an antioxidant.
Equine Concentrate (Paddock Tree Nutraceuticals)
Grain FreeGrain Free
HealthHealth
NutrientsNutrients
NutritionNutrition
Equine Concentrate by Paddock Tree Nutraceuticals is a concentrate formulated to be fed along with highly digestible fibre sources, like beet pulp or forage cubes. It is intended for all horse types.
Equine Fat ‘N Fibre (B-W Feed & Seed Ltd.)
Complete FeedComplete Feed
FatFat
FiberFiber
Gut HealthGut Health
B-W Equine Feed & Seed Ltd. Fat 'N Fibre is a horse feed providing digestible fibre sources, 7% crude fat and 12.5% crude protein.
Equine Focus (Bar Ale) – [Discontinued]
FiberFiber
MuscleMuscle
NutrientsNutrients
YeastYeast
Equine Focus from Bar Ale is intended to be fed to horses and ponies of all ages and work levels. Equine Focus contains beet pulp and soybean meal. Equine Focus total NSC content is 21%.
Equine Generator (Biovet)
Competition HorsesCompetition Horses
DigestionDigestion
NutritionNutrition
YeastYeast
Equine Generator from Biovet is a microbial supplement formulated for horses. Equine Generator contains kelp, biotin, and live yeast. Equine Generator is intended for performance horses.
Equine Hay Extender Pellets (Kalmbach Feeds)
Caloric EnergyCaloric Energy
FiberFiber
Hay StretcherHay Stretcher
NutritionNutrition
Equine Hay Extender by Kalmbach Feeds is a forage replacement pellet formulated with 12% crude protein, 2.5% fat, and 20% crude fiber. Fiber sources include alfalfa meal, soybean hulls, timothy meal, and wheat middlings.
Equine Restart (Equi-lete)
Gut HealthGut Health
HealthHealth
ImmunityImmunity
StressStress
Equine Restart by Equi-lete is a microbial supplement intended to support the gastrointestinal tract and overall immune health in all horse types.
Equine Senior Active (Purina)
EnergyEnergy
ExerciseExercise
Gut HealthGut Health
SeniorSenior
Purina® Equine Senior® Active is a concentrate horse feed containing pelleted and extruded components. It provides 14% fibre and 10% fat content.
Equine Senior® Complete Horse Feed (Purina Mills)
Complete FeedComplete Feed
DentalDental
ImmunityImmunity
SeniorSenior
Purina Equine Senior is a complete feed in an easy-to-chew formulation targeted at older horses. It contains 14% crude protein, 5.5% fat, and 19% NSC.
Equine VTM (Nature’s Farmacy)
Mineral BalanceMineral Balance
NutrientsNutrients
ProteinProtein
VitaminsVitamins
Equine VTM by Nature's Farmacy is a pelleted vitamin and mineral supplement intended to support overall health in all classes of horses.
EquineSaver (Figuerola Laboratories)
HealthHealth
HerbHerb
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
EquineSaver by Figuerola Laboratories is a supplement that contains over 300 nutrients and is intended to support overall health in all horse types.
Equinox (Probiotech)
AntioxidantAntioxidant
HealthHealth
VitaminsVitamins
YeastYeast
Equinox from Probiotech is a supplement that contains antioxidants that can help protect against free radicals. It is also meant to reduce oxidative stress.
Equinox Original (Equinox Equine)
DigestionDigestion
Hoof HealthHoof Health
ImmunityImmunity
NutrientsNutrients
Equinox Original is a powdered vitamin, mineral, and amino acid supplement for horses. It contains 37% crude protein.
EquiOtic Daily Packets (Blue Grass Animal Products)
DigestionDigestion
HindgutHindgut
ImmunityImmunity
ProbioticProbiotic
EquiOtic Daily Packets by Blue Grass Animal Products is a powdered supplement that contains a blend of probiotics. It intends to help the balance of beneficial bacteria for healthy gut function.
EquiOtic Probiotic Paste (Blue Grass Animal Products)
DigestionDigestion
Gut HealthGut Health
ImmunityImmunity
ProbioticProbiotic
EquiOtic Probiotic Paste by Blue Grass Animal Products is a paste supplement that contains a blend of probiotics that intends to bind directly to pathogens to remove them from the GI. It is meant for times of upset, stress, travel, etc.
Equipride (Sweetpro)
Feed EfficiencyFeed Efficiency
PrebioticPrebiotic
Ration BalancerRation Balancer
VitaminsVitamins
SweetPro's EquiPride® loose meal is a complete vitamin and trace mineral supplement with no added molasses. It uses fermented ingredients to support gut health. It is suitable for horses and ponies of all ages and work levels.
Equistages (DuMor)
HealthHealth
NutrientsNutrients
NutritionNutrition
ProbioticProbiotic
Equistages by DuMor is a pelleted feed intended to support overall health in all horse types.
Equithrive® Original Joint Powder
AntioxidantAntioxidant
GrowthGrowth
JointsJoints
PerformancePerformance
Equithrive Original Joint Powder is a joint supplement for horses that contains a micro-encapsulated resveratrol product and hyaluronic acid (HA) as the active ingredients. This feed is recommended for horses and ponies during training, growth, and performance.
Equitonic (Daily Dose Equine)
ImmunityImmunity
Mineral BalanceMineral Balance
PrebioticPrebiotic
ProbioticProbiotic
Equitonic by Daily Dose Equine is a liquid supplement that is intended to support increased nutrient absorption for horses of all life stages. It contains prebiotics, probiotics, and trace minerals.
EquiTum (AniMed)
DigestionDigestion
Gut HealthGut Health
NutrientsNutrients
YeastYeast
AniMed's EquiTum is meant to support and aid in digestion while helping to maintain a healthy intestinal tract. EquiTum supplies microorganisms, and can provide energy for horses.
Equus Fiber Max Omega (Equus)
BroodmareBroodmare
Competition HorsesCompetition Horses
Omega 3-6-9Omega 3-6-9
Weight IssuesWeight Issues
A beet pulp-based feed high in calories, fat & fibre and low in non-structural carbohydrates (Does not contain corn, barley, or oats).
Essential (DePaolo Equine Concepts)
Amino AcidAmino Acid
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Essential by DePaolo Equine Concepts is a pelleted vitamin and mineral supplement intended for mature equines. It contains inorganic and organic mineral sources.
Essential K (Tribute)
Amino AcidAmino Acid
ProbioticProbiotic
Ration BalancerRation Balancer
VitaminsVitamins
Tribute Essential K is a ration balancer with a low 12.5% NSC (sugar plus starch). Essential K provides a mix of organic and inorganic trace minerals, including organic selenium yeast.
Essential K GC Plus (Tribute)
JointsJoints
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
Ration BalancerRation Balancer
Tribute Essential K GC Plus is a lower-inclusion ration balancer formulated with glucosamine, chondroitin sulfate, and MSM meant to support joint health.
Essential K Rebuild (Tribute)
Low NSC FeedsLow NSC Feeds
PerformancePerformance
Ration BalancerRation Balancer
RecoveryRecovery
Essential K Rebuild by Tribute is a low-starch, low-sugar pelleted ration balancer formulated for performance horses. Different from Essential K, it has added chromium and turmeric.
Essential K w/ Fly Control (Tribute)
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
Ration BalancerRation Balancer
VitaminsVitamins
Tribute Essential K with Fly Control is a low feeding-rate ration balancer with Diflubenzuron, which can regulate the emergence of common flies.
Essentials Free Choice Mineral (Bluebonnet Feeds)
ElectrolyteElectrolyte
HealthHealth
Mineral BalanceMineral Balance
VitaminsVitamins
Essentials Free Choice Mineral by Bluebonnet Feeds is a free-choice mineral in granule form. It is intended to support overall health in horses on pasture or hay-based diets.
Esteem Complete Pellet (Bar Ale)
ExerciseExercise
FiberFiber
NutritionNutrition
VitaminsVitamins
Esteem Complete Pellet is a high fiber feed. It is intended for horses and ponies of all ages and work levels. It contains 13% protein, 3.2% fat, and 23% fiber.
Esteem Complete Senior Pellet (Bar Ale)
FiberFiber
NutritionNutrition
SeniorSenior
VitaminsVitamins
Esteem Complete Senior Pellet is a pelleted feed intended for senior horses and ponies. Esteem Complete Senior Pellet is formulated with glucosamine and chondroitin.
Esteem Complete Senior Textured (Bar Ale)
Gut HealthGut Health
NutritionNutrition
SeniorSenior
YeastYeast
Esteem Complete Senior Textured from Bar Ale is intended for senior horses. Esteem Complete Senior Textured is a textured horse feed formulated with beet pulp and alfalfa meal.
Esteem Focus Flex (Bar Ale)
Coat QualityCoat Quality
Hoof HealthHoof Health
Organic Trace MineralsOrganic Trace Minerals
ToplineTopline
Esteem Focus Flex by Bar Ale is a pelleted supplement intended to support body condition and performance in all classes of horses.
Esteem Golden State Blend (Bar Ale)
Complete FeedComplete Feed
HealthHealth
NutrientsNutrients
NutritionNutrition
Esteem Golden State Blend by Bar Ale is a pelleted complete feed containing alfalfa. It is intended to support overall health and performance in all horse types.
Esteem Low Starch (Bar Ale)
Complete FeedComplete Feed
HealthHealth
Low NSC FeedsLow NSC Feeds
ToplineTopline
Esteem Low Starch by Bar Ale is a low starch (4.4%) pelleted feed intended for horses requiring a low starch diet.
EveryDayBalance (Enviro Equine)
PerformancePerformance
Ration BalancerRation Balancer
Skin + HairSkin + Hair
Weight IssuesWeight Issues
EveryDayBalance by Enviro Equine is a flax-based vitamin and mineral supplement intended to support overall health and well-being in all horse types.
ÉvoluFib (Meunerie Soucy)
BroodmareBroodmare
Complete FeedComplete Feed
FoalFoal
VitaminsVitamins
ÉvoluFib from Meunerie Soucy is a complete pelleted feed. It is intended for foals and pregnant or lactating broodmares. It contains vitamins and minerals.
Evolution Elite (Purina)
Complete FeedComplete Feed
ExerciseExercise
Gut HealthGut Health
Weight IssuesWeight Issues
Purina Evolution Elite is a multi-particle complete feed containing extruded and pelleted components. It is formulated with 13% protein and 8% fat.
Evolution Juvenile (Purina)
Caloric EnergyCaloric Energy
FoalFoal
GrowthGrowth
Ration BalancerRation Balancer
Evolution Juvenile by Purina is a multiparticle feed for growing horses made with pelleted and extruded components. It is designed to meet the nutritional needs of weanlings, yearlings and two-year olds.
Evolution Maternity (Purina)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Purina Evolution Maternity is a pelleted and extruded feed intended for late gestation and lactating broodmares and nursing and growing foals. Energy sources include corn, soy hulls, beet pulp, alfalfa meal, and flaxseeds.
Evolution Senior (Purina)
Caloric EnergyCaloric Energy
Gut HealthGut Health
Ration BalancerRation Balancer
SeniorSenior
Purina Evolution Senior is a low glycemic pelleted and extruded horse feed intended for mature horses 15 years of age and older. it contains prebiotics, probiotics, yeast culture, and a balance of amino acids to help maintain ideal gut health.
Exacta 10 (Seminole)
FiberFiber
FlavorFlavor
Gut HealthGut Health
Organic Trace MineralsOrganic Trace Minerals
Seminole Exacta 10 is a textured feed intended for mature, active horses and ponies, providing 22% NSC. It contains soybeans, wheat middlings, oats, cracked corn, and molasses.
Exacta 12 (Seminole)
FiberFiber
FlavorFlavor
Gut HealthGut Health
Organic Trace MineralsOrganic Trace Minerals
Seminole Exacta 12 is a textured feed intended for active adult horses, providing 12% protein, 7% fat and 22% NSC. It contains soybeans, wheat middlings, oats, cracked corn, and molasses.
Exacta 14 (Seminole)
FiberFiber
FlavorFlavor
Gut HealthGut Health
Organic Trace MineralsOrganic Trace Minerals
Seminole Exacta 14 is a textured feed intended for growing, breeding, and performance horses. It provides 23% NSC and contains soybeans, wheat middlings, oats, cracked corn, and molasses.
Exceed 6-way (MVP)
Coat QualityCoat Quality
Gut HealthGut Health
Hoof HealthHoof Health
JointsJoints
Exceed 6-way from MVP is intended for joint, gastric, muscle, coat, hoof, and digestive health support. Some of the active ingredients include hyaluronic acid, MSM, biotin, zinc, copper, amino acids, probiotics, prebiotics, and a variety of herbs.
Exceed 6-Way Pellet (MVP)
JointsJoints
Mineral BalanceMineral Balance
MuscleMuscle
Omega 3-6-9Omega 3-6-9
Exceed 6-Way is a pelleted horse supplement containing MSM, glucosamine, hydrolyzed collagen, and yucca schidigera extract. It is formulated to support joints, hoof health, gut, and hair coat.
Excel (DePaolo Equine Concepts)
Gut HealthGut Health
HealthHealth
PrebioticPrebiotic
UlcersUlcers
Excel from DePaolo Equine Concepts is a supplement that aims to support and soothe the digestive tract in horses. It also can help with ulcers and the bacterial balance in the gut.
Excel Equine 10 (Excel Equine Feeds)
Easy KeeperEasy Keeper
HealthHealth
ImmunityImmunity
SeniorSenior
Excel Equine 10 is a textured feed from Excel Equine Feeds. This feed is intended for horses in low to moderate work, as well as mature horses.
Excel Equine 12 (Excel Equine Feeds)
FatFat
HealthHealth
ImmunityImmunity
PerformancePerformance
Excel Equine 12 is a textured feed from Excel Equine Feeds. Excel Equine 12 contains a fat content intended for horses in moderate workloads.
Excel Equine 15 (Excel Equine Feeds)
BroodmareBroodmare
GrowthGrowth
NutritionNutrition
PerformancePerformance
Excel Equine 15 by Excel Equine Feeds is a textured feed intended for broodmares, foals, weanlings, yearlings and high performance horses.
EZ-Balance (Purina)
HealthHealth
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
Ration BalancerRation Balancer
EZ-Balance is a low-calorie pelleted vitamin-mineral supplement formulated with organic copper, zinc and manganese. It has a low feeding rate of 150-200 grams per day.

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