Home Feeds Ingredients Microbial-based Additives

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

Vitamins

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)

Antioxidant

Organic Trace Minerals

Recovery

Vitamins

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.

Reproductive Supplement Muscle Supplement Immune Supplement Mineral Supplements Supplement Vitamin Supplements Organic Minerals

Omneity P – Pellets – Vitamin & Mineral Supplement (Mad Barn)

Gut Health

Hoof Health

Mineral Balance

Organic Trace Minerals

Ration 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.

Commercial Feeds & Supplements Supplement Amino Acid Supplements Bone Supplement Mineral Supplements Reproductive Supplement Vitamin Supplements Minerals Vitamins Organic Minerals

Omneity Premix – Vitamin & Mineral Supplement (Mad Barn)

Hoof Health

Mineral Balance

Organic Trace Minerals

Vitamins

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.

Commercial Feeds & Supplements Amino Acid Supplements Bone Supplement Mineral Supplements Reproductive Supplement Vitamin Supplements Minerals Organic Minerals Supplement

Optimum Digestive Health Pellets (Mad Barn)

Digestion

Feed Efficiency

Gut Health

Probiotic

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.

Supplement Gut Supplement Probiotics

Optimum Probiotic (Mad Barn)

Digestion

Gut Health

Immunity

Probiotic

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.

Gut Supplement Probiotics

Trace Mineral Pak (Mad Barn)

Coat Quality

Exercise

Hoof Health

Organic 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.

Hoof Supplement Immune Supplement Joint Supplement Skin & Coat Supplement Mineral Supplements Supplement Minerals Organic Minerals

Visceral+ (Mad Barn)

Digestion

Gut Health

Immunity

Probiotic

Ulcers

Yeast

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.

Supplement Gut Supplement Probiotics

DuraFlex EQ Joint Pellets (Durvet)

Digestion

Joints

Performance

Senior

DuraFlex EQ by Durvet is a pelleted joint supplement intended to support healthy joints in all horses.

Joint Supplement

Dyna Foal (Lakin Milling Company)

Energy

Foal

Mineral Balance

Nutrition

Dyna Foal from Lakin Milling Company is a pelleted feed intended for growing horses. Dyna Foal Horse Pellets contain a balanced calcium-to-phosphorus ratio intended for the growth and development of young horses.

Minerals

Dynamite (Dynamite)

Health

Hoof Health

Nutrients

Vitamins

Dynamite by Dynamite is a supplement containing high amounts of selenium (44.4 ppm), it is intended to support overall health in all performance horses.

Supplement

Dynasty Pro 14/6 Pellet (Blue Seal)-[Discontinued]

Caloric Energy

Complete Feed

Growth

Nutrition

Dynasty Pro 14/6 Pellet was a pelleted feed containing 6% fat, 14% protein, fermentable fiber, nutrients, and yeast. This was feed targeted horses of all ages and supported growth, performance, breeding, and lactation.

Commercial Feeds & Supplements Feeds

Dynasty Senior 14/6 Pellet (Kent Equine) – [Discontinued]

Caloric Energy

Complete Feed

Fiber

Senior

Dynasty Senior Pellet was high in fiber and provided added fat to maintain body condition in mature and senior horses. This feed contained a blend of vitamins and minerals, yeast cultures, and protein.

Commercial Feeds & Supplements Feeds

Dynasty Show 12/6 Pellet (Kent Equine) – [Discontinued]

Complete Feed

Competition Horses

Exercise

Performance

Dynasty Show 12/6 Pellet was a horse feed designed to meet the energy needs of active adult horses. This feed provided 12% protein, 6% fat, digestible fiber, vitamins, minerals, essential amino acids, antioxidants, and yeast cultures.

Commercial Feeds & Supplements Feeds

Dynasty XT Pro 14/10 Textured Horse Feed (Blue Seal) – [Discontinued]

Complete Feed

Fiber

Low NSC Feeds

Muscle

Blue Seal Dynasty XT Pro 14/10 is a textured horse feed made with shredded beet pulp. It provides 14% protein to support growing, performance and breeding horses.

Commercial Feeds & Supplements Feeds

E-5000 (Vita Flex)

Antioxidant

Muscle

Nutrients

Vitamins

Vita Flex E-5000 is a synthetic Vitamin E supplement for horses, providing 2500 IU per 15 gram serving. Vitamin E is an important antioxidant that supports muscle function and antioxidant processes.

Feed Additives Commercial Feeds & Supplements Supplement Vitamins

E-Clipse’PM Pellets (MVP)

Antioxidant

Immunity

Stress

Vitamins

E-Clipse'PM Pellets by MVP is a supplement for horses that provides antioxidants. It contains B vitamins that intend to help support normal neurological function.

Feed Additives Commercial Feeds & Supplements Immune Supplement Minerals Vitamins

E-SE-MAG Pellets (MVP)

Antioxidant

Mineral Balance

Nutrients

Vitamins

E-SE-MAG Pellets by MVP is a supplement for horses that contains vitamin E, selenium and magnesium. It intends to support efficient muscle function and manage exercise-associated muscle discomfort.

Feed Additives Commercial Feeds & Supplements Minerals Vitamins

E-TEC Balancer (Poulin Grain)

Gut Health

Low NSC Feeds

Nutrients

Ration Balancer

E-TEC Balancer is a ration balancer pellet for horses consuming unfortified grains or forage-only diets. It is intended for horses at different stages including performance, growing, breeding and metabolic horses.

Energy Sources Fiber Ration Balancer

E-TEC Carb Safe (Poulin Grain)

Complete Feed

Hoof Health

Low NSC Feeds

Metabolic Syndrome

Poulin Grain E-TEC® Carb Safe is a pelleted feed intended for horses that require lower sugar and starch content in their diet. It provides a maximum 5.5% NSC and can fed to overweight horses or those with metabolic concerns.

Commercial Feeds & Supplements Energy Sources Fiber

E-TEC Fibre-Max (Poulin Grain)

Fat

Fiber

Performance

Topline

E-TEC® Fibre-Max is a high fat (14%) and high fibre (20%) feed for performance horses that require higher calorie intakes. It provides 9.3% sugar and 7.4% starch for a total NSC of 16.7%.

Energy Sources Fiber

E-TEC One (Poulin Grain)

Mineral Balance

Nutrients

Vitamins

Yeast

E-TEC One by Poulin Grain is a grain-free feed intended for all classes of horses and ponies. It provides 14% protein, 8% fat, and 18% fiber.

Commercial Feeds & Supplements Feeds Energy Sources Protein

E-TEC Senior Low Carb (Poulin Grain)

Fiber

Nutrition

Senior

Weight Issues

E-TEC Senior Low Carb by Poulin Grain is a pelleted, grain- and molasses-free feed intended for senior horses that need to avoid sugars and starches. It contains 9.3% starch and 5% sugar.

Commercial Feeds & Supplements Feeds Protein

E-TEC Senior Low Carb Complete (Poulin Grain)

Digestion

Grain Free

Health

Senior

E-TEC Senior Low Carb Complete from Poulin Grain is a senior feed that is grain and molasses free. It is meant for horses with problems chewing or hard keepers.

Commercial Feeds & Supplements Feeds

Easi Off-The-Track (Pryde’s EasiFeed)

Gut Health

Hoof Health

Nutrients

Omega 3-6-9

Easi Off-The-Track by Pryde's EasiFeed is a pelleted complete feed intended for ex-racehorses.

Commercial Feeds & Supplements Complete Feeds

EasiMash (Pryde’s EasiFeed)

Caloric Energy

Coat Quality

Gut Health

Muscle

EasiMash by Pryde's EasiFeed is a pelleted complete feed intended to help with muscle building in pleasure, endurance, performance and senior horses.

Complete Feeds

Easy Keeper (Woody’s Horse Nutrition)

Easy Keeper

Fiber

Metabolism

Weight Issues

Woody’s Easy Keeper is a complete pelleted feed with lower energy density intended for horses at maintenance or horses that need to lose weight. It contains 10.5% NSC and 5% fat.

Commercial Feeds & Supplements Feeds Fiber

Eberglo Liquid (Nature’s Way)

Health

Mineral Balance

Performance

Vitamins

Eberglo by Nature's Wave is a liquid vitamin and mineral supplement for mature horses. It contains water-soluble and fat-soluble vitamins as well as inorganic trace minerals.

Commercial Feeds & Supplements Supplement

ecube Complete Senior (Blue Seal)

Fiber

Forage

Mineral Balance

Vitamins

ēcube Complete Senior is a complete horse feed in a large cube format. It is formulated with alfalfa and grass hays and provides less than 10% NSC. It is intended for mature horses but can be suitable for horses of all life stages.

Commercial Feeds & Supplements Feeds Legume Hay Fiber

Edge 14 (Hallway)

Energy

Fat

Fiber

Nutrition

Edge 14 from Hallway is a feed fortified with Stamm 30, providing 14% protein, and 6% fat. This feed provides energy from digestible fibres and vegetable oil.

Commercial Feeds & Supplements Feeds Fat

Eeze (Brooks Feeds)

Caloric Energy

Fiber

Nutrition

Performance

Eeze by Brooks Feeds is a textured feed for performance horses active in high-intensity disciplines requiring a reduced carbohydrate level. It draws energy primarily from digestible fibres and fats, including rice bran.

Commercial Feeds & Supplements Feeds Fat Fiber

Eeze Pro-Plus (Brooks Feeds)

Complete Feed

Fiber

Low NSC Feeds

Performance

Eeze Pro-Plus is a calorie dense textured feed that is high fibre and fat for performance horses with a reduced carbohydrate level. Lab analysis provides a calculated NSC value of ~19%.

Commercial Feeds & Supplements Feeds Legume Hay Fat Fiber

Eezy Mix (Dunstan)

Complete Feed

Energy

Exercise

Performance

Eezy Mix by Dunstan is an extruded cereal and protein-based complete feed intended to provide medium energy to all sport and leisure horses.

Energy Sources Protein Complete Forages

Electro-Cell (Paste) (MVP)

Electrolyte

Exercise

Recovery

Stress

Electro-Cell by MVP is a paste horse supplement that intends to provide balanced essential electrolytes for use during dehydration, heat, or stress. It contains ingredients such as glycine, calcium carbonate, and salt.

Feed Additives Commercial Feeds & Supplements Supplement Electrolyte Minerals Vitamins

Element (Equis Feed)

Caloric Energy

Grains

Mineral Balance

Vitamins

Element by Equis Feeds is a high-protein and moderate-fat horse feed that has 15.6% NSC. It contains Zinpro®4-Plex EQ performance trace minerals, prebiotic fibre, beet pulp, and soybean hulls.

Commercial Feeds & Supplements Feeds

Element (Stride Animal Health) – [Discontinued]

Electrolyte

Health

Mineral Balance

Vitamins

Element from Stride Animal Health is a mineral supplement that can assist with the general health of horses. It contains vitamins, minerals, and electrolytes.

Commercial Feeds & Supplements Supplement Electrolyte Minerals Vitamins

Elements (ProElite)

Amino Acid

Health

Organic Trace Minerals

Vitamins

Elements by Pro Elite is a powdered supplement that provides essential vitamins, minerals, and amino acids for horses on a forage-only diet.

Commercial Feeds & Supplements Minerals Vitamins Supplement

Elite 300 (Pryde’s EasiFeed)

Mineral Balance

Nutrients

Probiotic

Vitamins

Elite 300 by Pryde's EasiFeed is a pelleted vitamin and mineral supplement intended for all horse types.

Mineral Supplements Supplement Vitamin Supplements

Elite Competitor Horse Feed (New Country Organics)

Caloric Energy

Competition Horses

Performance

Stress

Elite Competitor Horse Feed by New Country Organics is a textured feed containing oats, peas, alfalfa pellets, sunflower meal, kelp, and probiotics. It is intended for horses that require higher energy and protein.

Commercial Feeds & Supplements Feeds Protein Fat Fiber

Elite Performance (Equine Advantage)

Caloric Energy

Complete Feed

Competition Horses

Performance

Elite Performance by Equine Advantage is designed for performance horses. This textured feed provides energy from starch and fat sources, with higher levels of biotin and Lysine.

Commercial Feeds & Supplements Energy Sources Complete Forages

Elite Ration (Hoffman’s Horse Products)

Competition Horses

Exercise

Performance

Weight Issues

Hoffman's Elite Horse Ration is a feed intended for horses in moderate to heavy work, or hard keepers. This feed contains flax, rice bran, and vegetable oils for energy, providing 15.5% NSC and 8% fat.

Commercial Feeds & Supplements Feeds Fiber Vitamins

Empower Boost Horse Supplement (Nutrena)

Exercise

Fat

Performance

Weight Issues

Empower Boost is a supplement high in fat and calorie-dense intended for performance horses and hard keepers. It is ideal for gut health as prebiotics and probiotics have been added. This supplement can also be beneficial for horses prone to tying up.

Commercial Feeds & Supplements Energy Sources Fat Corn Gut Supplement Probiotics

Empower Digestive Balance (Nutrena)

Digestion

Gut Health

Ulcers

Weight Issues

Nutrena Empower Digestive Balance is a pelleted horse supplement that can be top-dressed on feed to support gastrointestinal health. It is formulated with added calcium to buffer gastric pH.

Commercial Feeds & Supplements Gut Supplement Probiotics Minerals Vitamins

Empower® Topline Balance® Ration Balancer (Nutrena)

Amino Acid

Grain Free

Ration Balancer

Topline

Nutrena Empower® Topline Balance® is a concentrated ration balancer to support topline and provide common nutrients lacking in forage. It contains 30% crude protein with added limiting amino acids.

Commercial Feeds & Supplements Feeds Ration Balancer Protein Amino Acid Supplements Vitamins Corn

Encompass (Hallway)

Mineral Balance

Nutrition

Protein

Vitamins

Encompass from Hallway Feeds is a cubed ration balancer for horses. It provides vitamins, minerals and 25% protein without significant caloric supplementation.

Commercial Feeds & Supplements Supplement

EndurExtra (Kentucky Performance Products)

Fat

Performance

Senior

Weight Issues

EndurExtra by Kentucky Performance Products is a powdered fat supplement intended to support weight gain in hard keepers, performance horses and seniors.

Commercial Feeds & Supplements Supplement Weight Gain Supplement Fat

Endurix (Cavalor)

Energy

Electrolyte

Fat

Performance

Cavalor Endurix is a feed mix meant for sport performance horses. It is a source of energy, pre- and probiotics, fat, vitamins and minerals.

Energy Sources Feeds Vitamins

Engage Cool Calorie Base (Pink Rose Organix)

Complete Feed

Easy Keeper

Low NSC Feeds

Nutrients

Engage Cool Calorie Base by Pink Rose Organix is a complete feed designed for adult horses in light to moderate work. It is classified as a low NSC feed and suitable for easy keepers.

Commercial Feeds & Supplements Feeds

Enhance 0.5 (Technique)

Complete Feed

Health

Nutrients

Nutrition

Enhance 0.5 by Technique is a non-soy pelleted feed intended to meet the nutritional needs of all horse types.

Commercial Feeds & Supplements Feeds

Enhancer (Brooks Feeds)

Metabolic Syndrome

Organic Trace Minerals

Ration Balancer

Vitamins

Brooks Enhancer is a low-calorie pelleted ration balancer formulated to provide vitamins and minerals required in the equine diet. It contains a mix of organic and inorganic minerals and has a low NSC content ideal for horses prone to laminitis.

Commercial Feeds & Supplements Feeds

Enrichment (Excel Equine)

Digestion

Health

Metabolic Syndrome

Senior

Enrichment by Excel Equine is a specially formulated pelleted feed designed for senior horses with chronic health conditions. It contains 26% protein, 6% fiber, and 3% fat to support their unique nutritional needs.

Commercial Feeds & Supplements Feeds

EQ BioClay + Paste – Maximum Strength (Full Bucket Equine)

Electrolyte

Gut Health

Health

Immunity

EQ BioClay + Paste - Maximum Strength from Full Bucket Equine is a clay based formula that is intended to support digestive function during periods of stress. EQ BioClay + Paste - Maximum Strength contains probiotics, prebiotics, electrolytes and L-glutamine intended to support gastrointestinal function.

Commercial Feeds & Supplements Supplement Gut Supplement

EQ Probiotic Granules – Regular Strength (Full Bucket Health)

Competition Horses

Gut Health

Probiotic

Yeast

EQ Probiotic Granules - Regular Strength from Full Bucket Health is a granule probiotic supplement for horses. EQ Probiotic Granules - Regular Strength is intended to support digestive and gut health. This supplement contains 25 billion CFU's of Saccharomyces Cerevisiae Boulardii.

Feed Additives Yeast Supplements Gut Supplement Probiotics

EQ Probiotic Paste – Max Strength (Full Bucket Equine)

Gut Health

Health

Probiotic

Yeast

EQ Probiotic Paste - Max Strength from Full Bucket Equine is a yeast-based formula intended to support normal gut function in horses. EQ Probiotic Paste - Max Strength contains probiotics, prebiotics, and the amino acid L-glutamine.

Gut Supplement

EQ Probiotic Pellets – Extra Strength (Full Bucket Equine)

Digestion

Gut Health

Health

Probiotic

EQ Probiotic Pellets - Extra Strength from Full Bucket Equine is a pelleted probiotic pellet that is intended to support horses' gut health. This supplement contains 50 billion CFU's of Saccharomyces cerevisiae boulardii yeast strain.

Probiotics Supplement

EQ Probiotic Pellets – Regular Strength (Full Bucket Equine)

Gut Health

Health

Immunity

Probiotic

EQ Probiotic Pellets - Regular Strength from Full Bucket Equine is a pelleted probiotic supplement. This supplement provides 50 billion CFUs intended to support digestive function in horses.

Probiotics Supplement

EQ16 Texturized (Masterfeeds)

Broodmare

Complete Feed

Foal

Lactation

Masterfeeds EQ16 Texturized is a high-calorie textured horse feed targeted to growing yearlings and pregnant or lactating mares. It provides 16% protein in a grain mix with added molasses for palatability.

Commercial Feeds & Supplements Feeds

EQ8 Gut Health (Buckeye)

Digestion

Gut Health

Prebiotic

Probiotic

EQ8 Gut Health is a textured feed intended for horses in maintenance to moderate exercise. This feed provides 20% NSC and contains calcium, prebiotics, probiotics and yeast to support digestive health.

Feed Additives Commercial Feeds & Supplements