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Identify gaps in your horse's nutrition program to optimize their well-being.
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 Health
Metabolic Syndrome
Organic Trace Minerals
VitaminsAminoTrace+ 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)
AntioxidantOrganic Trace Minerals
RecoveryVitaminsNatural 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 HealthHoof Health
Mineral BalanceOrganic Trace Minerals
Ration BalancerOmneity 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 HealthMineral BalanceOrganic Trace MineralsVitaminsOmneity 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)
Digestion
Feed EfficiencyGut Health
ProbioticOptimum 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)
DigestionGut Health
ImmunityProbioticMad 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 Quality
ExerciseHoof HealthOrganic Trace MineralsTrace 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)
DigestionGut HealthImmunityProbiotic
Ulcers
YeastVisceral+ 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.
Power + (Pivotal)
Amino Acid
Competition Horses
Muscle
PerformancePower + By Pivotal is a powdered amino acid and probiotic supplement intended to support overall health in performance horses.
Power Finish (Tribute)
Complete Feed
EnergyExercisePerformanceTribute Power Finish is a high-fat textured feed intended for adult horses in heavy training. It provides highly digestible energy sources to support the calorie requirements of racehorses. Power Finish contains high levels of protein (13% crude protein), fat (10% crude fat), and NSC (32%).
Power Play (Brooks Feeds)
Energy
FiberPerformance
StaminaPower Play from Brooks Feeds is an energy-dense textured feed. It is intended to support horses in high intensity exercise or performance horses.
PowerGLO (ADM Animal Nutrition)
Caloric EnergyExercisePerformance
Weight IssuesPowerGLO is a concentrated feed formulated for elite performance horses. It is high in fat and carbohydrates to support the caloric needs of equine athletes.
Pre & Probiotics (Pegasus)
DigestionGut Health
HindgutYeastPre & Probiotics from Pegasus is intended to support overall digestive health in all horses and ponies. This supplement contains yeast and sweet whey.
Prebiotic + Probiotic Granular (Equine Choice)
DigestionGut Health
PrebioticProbioticEquine Choice Prebiotics + Probiotics is a granular (powdered) supplement providing live encapsulated saccharomyces cerevisiae yeast, Bacillus bacteria, digestive enzymes and mannan-oligosaccharide (MOS). Available in a paste or in granular form.
Prebiotic and Probiotic Paste (Equine Choice)
PrebioticProbiotic
StressYeastPrebiotic and Probiotic Paste from Equine Choice contains live encapsulated saccharomyces cerevisiae yeast. The concentrated paste can assist gut microflora during acute periods of digestive upsets.
Prebiotic Ulsa-X Mash (Thunderbrook)
DigestionGut Health
Health
NutritionPrebiotic Ulsa-X Mash from Thunderbrook is a digestive supplement intended to support horses' gut microbiome. This supplement contains Jerusalem Artichoke which is intended to support gut health and function.
Precision (Ark Nutrition)
Amino Acid
Fat
Growth
ToplinePrecision by Ark Nutrition is a pelleted feed that is low in sugar with a moderate starch level meant to ease digestion and is higher in soluble fiber levels to support hindgut function.
Preg Check (Natural Horse Vet)
MareOrganic Trace Minerals
StallionVitaminsPreg Check by Natural Horse Vet is a powdered supplement that intends to provide the nutrients required during the prenatal period and nutrients important during reproduction and lactation.
Premium Cold-Pressed Camelina Oil Equine (Wild Gold)
Coat QualityFat
Skin + HairWeight IssuesPremium Cold-Pressed Camelina Oil Equine is a liquid supplement that contains DHA, which is meant to be an anti-inflammatory omega-3 fatty acid. This supplement also contains aloe vera.
Premium Horse Pellet AL (Cargill)
DigestionExercise
NutrientsNutritionPremium Horse Pellets (AL) by Cargill are intended as a ration balancer for adult horses.
PreOx (HorseTech)
AntioxidantHealthImmunityVitaminsPreOx from HorseTech is a powdered antioxidant supplement. PreOx contains added vitamins, minerals and added flaxseed. This supplement is intended for horses who require additional antioxidants in their diet.
Prep 14 (Hallway)
Caloric EnergyGut HealthRecoveryWeight IssuesPrep 14 from Hallway is a fortified high-energy, fat, and fibre feed for horses with greater energy demands. Prep 14 contains 14% protein, 12.5% fibre, and 10% fat.
Prepare (Barastoc)
Antioxidant
BroodmareMineral BalanceStallionPrepare by Barastoc is a concentrate that is meant for young horses and broodmares or stallions to assist with preparing for breeding. It contains amino acids, minerals, vitamins, and antioxidants.
Prime (Running Horse)
Competition HorsesExerciseFatPerformanceRunning Horse Prime is a high-energy extruded feed targeted to performance equine athletes. Calorie sources include wheat middlings, pearled barley, soybean hulls, corn DDGS, stabilized rice bran, vegetable oil, flaxseed, and beet pulp.
PrimeGLO (ADM Animal Nutrition)
Fat
Omega 3-6-9PerformanceWeight IssuesPrimeGLO is a concentrated horse feed designed for mature horses. It is a soft, easy-to-chew formulation that contains ingredients to support gut health. The total NSC is 14.5%.
Pro Balance (Bluebonnet Feeds)
Mineral BalanceNutrientsVitaminsYeastPro Balance by Bluebonnet is a comprehensive diet balancer formulated to correct vitamin and mineral deficiencies commonly found in forage-only diets for horses. It also includes yeast, probiotics, and digestive enzymes to support optimal gut health and nutrient absorption.
Pro Digest Balancer (Horslyx)
Gut HealthHindgutMineral BalanceYeastPro Digest Balancer from Horslyx is designed to support gut health in horses and ponies. This balancer contains seaweed and bark as a source of mucilage. Licking the product supports saliva production, which can help buffer stomach acidity.
Pro Feed Balancer (Blue Chip Feed)
BroodmareGrowthRation BalancerStallionPro Feed Balancer from Blue Chip Feed is a pelleted ration balancer designed to support hoof, coat, and gut health. This product is intended for performance horses, broodmares, stallions, and young stock.
Pro Mare (MAC)
Broodmare
LactationMineral BalanceNutrientsPro Mare by MAC is a salt-limited supplement intended for lactating or dry mares on hay or pasture.
Pro Mare With Clarifly (MAC)
BroodmareHealthLactationNutrientsPro Mare with Clarifly by MAC is a protein, vitamin and mineral supplement. It is intended to control the development of flies in the manure of dry and lactating mares.
Pro Performance Balancer (Spillers Feeds)
Caloric EnergyCompetition HorsesMusclePerformanceThe Pro Performance Balancer from Spillers Feed is intended for performance horses. This feed is high in antioxidants such as Vitamins E and C, which support the horse's muscles, immunity, and respiratory health.
Pro Star Complete 3/8 (West Feeds)
Caloric EnergyFiberGut HealthNutritionPro Star Complete 3/8 by West Feeds is a high fibre feed with ingredients such as plant protein and processed grains. It contains a minimum of 12% protein and a maximum of 25% fibre.
Pro V.M. with EFAs (Peak Performance Nutrients)
Antioxidant
Electrolyte
JointsMusclePro V.M. with EFAs by Peak Performance Nutrients is a vitamin, mineral, amino acid & probiotic supplement designed with race horses in mind. It intends to support the extreme demands on the horse’s joints, immune system and digestive system.
Pro-Biotic EQ Pellets (MVP)
Gut HealthImmunityProbioticYeastPro-biotic EQ Pellets by MVP is a pelleted gut supplement that contains probiotics and prebiotics that intend to support the digestive and immune system. It intends to aid in the digestion of fibre, protein, starches and sugars.
Pro-Formance 14% (West Feeds)
Complete FeedExerciseFat
ProteinPro-Formance 14% by West Feeds is a feed for performance horses, with an elevated protein level of 14% and a good level of fat of 6%. This feed is meant for high energy performance and includes ingredients such as inorganic vitamins and minerals and soybean oil to support the activity level.
Pro-Plus (West Feeds)
Caloric EnergyExercise
GrainsProteinPro-Plus by West Feeds is a feed meant for active horses, high in energy, with a protein level of 12% and a fat content of 6%. The ingredients in this feed include added soybean oil, inorganic vitamins and minerals, and yeast products to maintain a healthy and active lifestyle.
![Pro-Plus 12 Sweet (Seminole) – [Discontinued]](/wp-content/uploads/2019/12/Pro-Plus-12-Sweet-Seminole-300x300.jpg)
Pro-Plus 12 Sweet (Seminole) – [Discontinued]
Amino AcidComplete FeedExerciseGrowthSeminole Pro-Plus 12 Sweet is a now-discontinued oat-based textured feed for growing, breeding, pleasure and performance horses.
PRO-TECT LS (Dove Performance Nutrition)
Health
Low NSC FeedsMetabolic SyndromeNutritionPRO-TECT LS by Dove Performance Nutrition is a pelleted feed intended for all horse types.
Pro-Weight Pellets (MVP)
FatPerformanceProbioticWeight IssuesPro-Weight Pellets by MVP is a pelleted supplement for horses that intends to provide fat and probiotics to support healthy weight gain and body condition. It contains 60% fat from flax meal, soy meal and vegetable fat.
Pro24 Supplement (Hoffman’s Horse Products)
Easy KeeperFeed EfficiencyHealthNutritionPro24 Supplement from Hoffman's is a concentrated protein, vitamin, and mineral supplement to support horses over 1 year of age. Pro24 Supplement is intended to be fed with good quality forages and contains no added sugars or starches.
ProAdvantage – Alfalfa Formula (Progressive Nutrition)
HealthMineral BalanceNutritionVitaminsProAdvantage® – Alfalfa Formula is a ration balancer concentrate intended for horses consuming alfalfa hay. This feed contains amino acids, vitamins, and minerals in a lower-starch format.
ProAdvantage – Grass Formula (Progressive Nutrition)
HealthMineral BalanceNutritionVitaminsProAdvantage® – Grass Formula is a concentrated ration balancer intended for horses consuming grass or mixed hay. This feed contains amino acids, vitamins, and minerals in a lower-starch format.
Probio Blend (Mare Magic)
DigestionGut HealthImmunityProbioticProbio Blend by Mare Magic is a probiotic and digestive enzyme supplement in a ground flaxseed base. One gram of Probio Blend contains 13 billion CFU of yeast and 5 billion CFU of probiotics.
Probios Horse Soft Chews (Apple) (Chr. Hansen)
DigestionGut HealthHealthProbioticProbios Horse Soft Chews is a probiotic supplement in treat form for horses. Each 10 gram chew supplies a minimum of 150 million CFUs of probiotics (Bacillus subtilis and Bacillus licheniformis). The treats are apple-flavoured and sweetened with molasses and corn starch. It is recommended to feed 1-2 treats daily.
Probios Powder (Vets Plus, Inc.)
DigestionGut HealthImmunityProbioticProbios Powder is a probiotic supplement with a guaranteed minimum concentration of 10 million Colony Forming Units (CFU) per gram. It includes the probiotic strains Lactobacillus plantarum, Enterococcus faecium, Lactobacillus casei, and Lactobacillus acidophilus.
Probiotic Paste (DAC)
DigestionGut HealthHealthProbioticProbiotic Paste by DAC is a gut-health supplement that provides a source of beneficial intestinal bacteria. Each tube delivers 1 billion CFU per gram of lactic acid–producing bacteria.
ProbioticWise (Wiser Concepts)
HealthPrebioticProbioticYeastProbioticWise is a concentrated source of prebiotics and probiotics for horses. ProbioticWise is intended to maintain a healthy population of bacteria within the gastrointestinal tract of the horse.
ProBreed (Cavalor)
Broodmare
FoalGrowthLactationCavalor ProBreed is a textured feed for pregnant and gestating mares, as well as foals under 1 year of age. It contains 16% protein from sources such as alfalfa, wheat middlings and soybeans.
Procreatin 7 Active Dried Yeast (Phileo by Lesaffre)
Feed EfficiencyGut Health
Toxin BinderYeastProcreatin 7 is a proprietary strain of Saccharomyces cerevisiae yeast used as a probiotic supplement in livestock feeds. It supports fiber, starch, and protein digestion.
Profecta 10 (Seminole)
Caloric EnergyFeed EfficiencyGrainsYeastSeminole Profecta 10™ is a pelleted feed providing grains, digestible fibers, yeast and molasses with 21% NSC. It is targeted at active mature horses and ponies.
Profecta 12 (Seminole)
FiberGrainsMineral BalanceYeastSeminole Profecta 12 is a pelleted feed intended for mature, active horses and ponies. It has a moderate energy density, yeast culture, and 19% NSC (sugar and starch).
Profecta 14 (Seminole)
FiberGrainsMineral BalanceYeastSeminole Profecta 14 is a pelleted feed intended for growing, breeding and performance horses. It contains 14% protein, 7% fat and 24% NSC. This feed is fortified with chelated trace minerals and antioxidants.
Profix (Hestevard)
DigestionGut HealthPrebioticProbioticProfix by Hestevard is a powdered supplement intended to provide digestive support to all horses and ponies.
Profix +BIND (Hestevard)
AntioxidantDigestionGut HealthProbioticProfix +BIND by Hestevard is a powdered supplement intended to support a healthy digestive system in all horses and ponies.
Profix ADVANCED (Hestevard)
DigestionGut HealthPrebioticProbioticProfix ADVANCED by Hestevard is a paste supplement intended to maintain a healthy digestive system in all foals, horses and ponies.
Profix Paste Oral Syringe (Hestevard)
DigestionGut HealthImmunityProbioticProfix Paste Oral Syringe by Hestevard is a supplement intended to support gut health and function in all horse and pony types.
ProForce Fuel (Nutrena)
Competition HorsesEnergyExerciseFatNutrena ProForce Fuel is a 13% fat horse feed intended for performance athletes and hard keepers. It is meant to provide a higher calorie density with a maximum of 20% NSC.
ProForce Fuel XF (Nutrena)
Competition HorsesEnergyExerciseFatNutrena ProForce® Fuel XF is a 13% fat horse feed formulated for high performance horses that need additional nutritional support to meet the demands of stress and rigorous training.
Related Ingredients
- Aspergillus niger
- Aspergillus oryzae
- Bacillus licheniformis
- Bacillus subtilis
- Bifidobacterium bifidum
- Bifidobacterium longum
- Bifidobacterium thermophylum
- Direct Fed Microbials
- Dried Bifidobacterium infantis
- Dried Enterococcus cremoris
- Dried Enterococcus diacetylactis
- Dried Lactobacillus helveticus
- Dried Lactobacillus lactis
- Dried Pediococcus acidilactici Fermentation Product
- Dried Pediococcus pentosaceus Fermentation Product
- Enterococcus faecium
- Enterococcus lactis
- Fermentation Extract
- Fermentation Solubles
- Lactobacillus brevis
- Lactobacillus casei
- Lactobacillus fermentum
- Lactobacillus reuteri
- Lactococcus lactis
- Postbiotics
- Prebiotics
- Propionibacterium freudenreichii
- Trichoderma longibrachiatum
- Yeast
