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

Triumph Active 12 Pellet (Nutrena)

Health

Muscle

Nutrition

Recovery

Nutrena Triumph® Active 12 Pellet is an 18% NSC feed intended for active mature horses. It contains added methionine and lysine which are meant to support muscle development.

Commercial Feeds & Supplements Feeds Energy Sources

Triumph Complete (Nutrena)

Complete Feed

Energy

Nutrition

Protein

Triumph Complete is a high-fibre, moderate protein and low-fat complete feed formulated with 22% NSC. It is formulated as a hay stretcher that can be used to replace portions of forage.

Commercial Feeds & Supplements Complete Feeds Feeds

Triumph Fiber Plus (Nutrena)

Digestion

Energy

Fiber

Nutrition

Triumph Fiber Plus is a high fat and fibre complete feed providing 12% protein, 10% fat and 17% NSC. Triumph Fiber Plus is formulated for mature horses of all exercise levels.

Commercial Feeds & Supplements Feeds Fat Fiber

Triumph Professional (Nutrena)

Complete Feed

Energy

Nutrition

Protein

Triumph Professional is a pelleted complete feed formulated for a variety of life stages. It provides 14% protein, 8% fat and 17% NSC.

Commercial Feeds & Supplements Feeds Protein Fat

Triumph Professional Pellet Horse Feed (Nutrena)

Complete Feed

Fiber

Muscle

Nutrition

Triumph Professional is a pelleted complete feed that provides 14% protein, 8% fat and less than 17% NSC. It is formulated for a large variety of horses such as broodmares, foals, performance horses, and horses at maintenance.

Commercial Feeds & Supplements Feeds

Triumph Professional Textured 14% Horse Feed (Nutrena)

Digestion

Health

Hoof Health

Topline

Triumph Professional Textured Horse Feed is a concentrate feed for horses of all ages and work levels. It supplies 14% crude protein, 8% crude fat, and 33% sugar and starch.

Commercial Feeds & Supplements Feeds Amino Acid Supplements Minerals Corn Oats Gut Supplement Probiotics Organic Minerals

Triumph Senior Horse Feed (Nutrena)

Complete Feed

Gut Health

Senior

Topline

Triumph® Senior Horse Feed is a complete feed intended for older horses providing 14% protein, 7% fat and 21% NSC (sugar and starch).

Commercial Feeds & Supplements Feeds Sweet Feed Fiber

Tru Breed (Hygain)

Antioxidant

Broodmare

Digestion

Growth

Tru Breed by Hygain is a soy-free extruded feed intended for breeding and growing horses.

Complete Feeds

Tru Care (Hygain)

Digestion

Nutrients

Nutrition

Senior

Tru Care from Hygain is an extruded feed intended for horses requiring extra calories, such as senior horses. Tru Care contains glucosamine intended to support joint health.

Feeds

TruCare EQ – Top Dress Trace Mineral Blend (ZinPro) [Discontinued]

Amino Acid

Mineral Balance

Nutrition

Organic Trace Minerals

TruCare EQ is an equine amino acid and mineral supplement by ZinPro. It contains organic minerals and the amino acids lysine and methionine.

Commercial Feeds & Supplements Mineral Supplements Organic Minerals

U-7 Gastric Aid (Finish Line Horse Products)

Digestion

Gut Health

Hindgut

Nutrients

This equine supplement from Finish Line Horse Products is meant to support digestive health and the health of the foregut and hindgut.

Gut Supplement

U-Balance Foundation (Uckele)

Fiber

Mineral Balance

Protein

Vitamins

Uckele U-Balance Foundation is a pelleted vitamin, mineral, and amino acid supplement for horses. It is intended to balance the diet without adding significant calories. This supplement can also supports sugar metabolism.

Feed Additives Commercial Feeds & Supplements

Ulc-R-Aid (AniMed)

Gut Health

Immunity

Mineral Balance

Ulcers

Ulc-R-Aid from AniMed is a powdered supplement that is supposed to support horses prone to gastric ulcers. It aids in immune function and contains Colostrashield.

Gut Supplement Minerals

Ulca Power Cubes (Spillers Feeds)

Caloric Energy

Performance

Respiratory

Ulcers

Ulca Power Cubes from Spillers Feed is high in energy and low in starch, making this feed ideal for performance horses prone to gastric ulcers. This feed contains Vitamin C to support the respiratory system and Lysine, which supports muscle development and performance.

Commercial Feeds & Supplements Complete Forages

Ulcer Protect (CEN)

Digestion

Gut Health

Health

Ulcers

Ulcer Protect from CEN is a stomach supplement that can help protect the gut from ulcers, and aims to reduce the severity of present ones. It is meant to support a healthy gut lining and increase absorption.

Gut Supplement

ULS-Gard Pellets (Equine America)

Digestion

Gut Health

Nutrients

Probiotic

ULS-Gard Pellets from Equine America is a stomach and gastrointestinal tract supplement. It is meant to support normal pH, proper function and contains pro- and prebiotics.

Commercial Feeds & Supplements Gut Supplement Probiotics

Ultimate (Doctor’s Choice Supplements)

Amino Acid

Metabolic Syndrome

Omega 3-6-9

Ration Balancer

Ultimate by Doctor's Choice Supplements is a ration balancer intended for horses on pasture of forage. It contains high levels of calcium, thiamine and the first limiting amino acid lysine.

Feed Additives Commercial Feeds & Supplements Ration Balancer Amino Acid Supplements

Ultimate Balancer (Dodson & Horrell)

Antioxidant

Hoof Health

Ration Balancer

Yeast

Ultimate Balancer by Dodson & Horrell is a low-calorie ration balancer with the added benefits of hoof support and digestive support. This supplemental feed includes ingredients such as vitamin and mineral premix, yeast, and herbs added for antioxidants.

Commercial Feeds & Supplements Ration Balancer Minerals Vitamins

ULTIMATE FINISH 25 (BUCKEYE Nutrition)

Fat

Omega 3-6-9

Skin + Hair

Weight Issues

Ultimate Finish 25 is a high-fat (25%) supplement intended for use as a top-dressing to add energy to the diet for working horses or horses that need to gain weight gain. It is formulated with soybeans, flaxseed, and rice bran.

Commercial Feeds & Supplements Feeds Fat

Ultimate Recovery (Buckeye)

Amino Acid

Competition Horses

Exercise

Recovery

Buckeye Ultimate Recovery is an extruded performance horse supplement containing added fats and branched-chain amino acids to support muscle and tissue recovery. This supplement also contains electrolytes to aid in rehydration.

Commercial Feeds & Supplements Feeds Protein Fat

Ultium Gastric Care (Purina)

Competition Horses

Gut Health

Stress

Ulcers

Purina® Ultium® Gastric Care is a concentrate feed intended for performance horses to support gastric and hindgut health. It provides digestible fibres from beet pulp, alfalfa and soy hulls.

Commercial Feeds & Supplements Feeds Fiber

Ultra Complete (Tribute)

Energy

Fat

Performance

Weight Issues

Ultra Complete is a high-fat and fibre textured feed formulated for adult horses in heavy work, such as racehorses in training. It is made with beet pulp, molasses, whole oats and soybeans.

Commercial Feeds & Supplements Feeds

Ultra Dynamix (Seminole)

Caloric Energy

Complete Feed

Organic Trace Minerals

Protein

Seminole Ultra Dynamix™ is a high-calorie pelleted horse feed for growing, breeding and performance horses. It contains oats, corn, digestible fibers, soybean oil and stabilized rice bran.

Commercial Feeds & Supplements Feeds

Ultra GH (Tribute)

Fat

Feed Efficiency

Fiber

Gut Health

Tribute Ultra GH is a complete pelleted feed intended to support gastrointestinal health in performance horses. It contains added microencapsulated dry yeast, direct-fed microbials, organic and inorganic trace minerals. It provides 8% crude fat and 21.5% NSC.

Commercial Feeds & Supplements Feeds Gut Supplement

Ultra Mate (Elk Grove Milling)

Competition Horses

Energy

Joints

Weight Issues

Ultra Mate by Elk Grove Milling is a corn based supplement intended to provide extra energy for competition horses, hard keepers, stallions and lactating mares.

Supplement Energy Sources Corn

UltraCruz Equine Appetite Support (Santa Cruz Animal Health)

Gut Health

Probiotic

Weight Issues

Yeast

UltraCruz Equine Appetite Support Supplement is a pelleted supplement intended to increase appetite and support digestive health. It provides 30 billion CFU of probiotics and prebiotics, as well as 2 grams of L-glutamine per serving (56 grams). It can be fed to stressed horses and weanlings.

Commercial Feeds & Supplements Supplement Gut Supplement

UltraCruz Equine Calming Supplement (Paste) (Santa Cruz Animal Health)

Amino Acid

Calming

Nutrients

Vitamins

UltraCruz Equine Calming Supplement by Santa Cruz Animal Health is formulated to encourage relaxation in horses that are tense or anxious. The recommended dose is two syringes of paste per day. This supplement contains several B-vitamins, along with magnesium, calcium and the amino acid theanine.

Commercial Feeds & Supplements Supplement

UltraCruz Equine Probiotic (Santa Cruz Animal Health)

Gut Health

Hindgut

Probiotic

Yeast

UltraCruz Equine Probiotic by Santa Cruz is a probiotic and prebiotic supplement for horses intended to support a healthy digestive tract. The pelleted version supplies 30 billion CFU/serving (28 grams), and the powder version supplies 450 million CFU/serving (15 grams).

Commercial Feeds & Supplements Supplement Gut Supplement

UltraCruz Equine Probiotic Paste (Santa Cruz Animal Health)

Hindgut

Prebiotic

Probiotic

Yeast

UltraCruz Equine Probiotic Paste Supplement provides 200 million CFU (per 15 mL serving) of probiotics and prebiotics meant to support healthy digestive function. It is intended for horses or foals experiencing stress from dietary changes, antibiotics, and/or exercise.

Commercial Feeds & Supplements Supplement Gut Supplement

UltraCruz Foal Advanced Probiotic Paste (Santa Cruz Animal Health)

Digestion

Foal

Gut Health

Probiotic

UltraCruz Foal Advanced Probiotic Paste is intended for use in newborn to weaned foals. It contains probiotics (Lactobacillus rhamnosus), yeast (Saccharomyces cerevisiae), L-glutamine, and digestive enzymes (lactase and amylase) blended in flaxseed oil.

Commercial Feeds & Supplements Supplement Probiotics

Ultramin (Equis Feed)

Health

Mineral Balance

Vitamins

Yeast

Ultramin by Equis Feed is a free-choice vitamin-mineral supplement for horses that can also be used to top-dress rations. It is formulated with organic minerals, biotin, yeast, and calcium carbonate.

Commercial Feeds & Supplements Minerals Vitamins

Unbeetable Complete (Unbeetable Feeds)

Energy

Grain Free

Low NSC Feeds

Protein

Unbeetable Complete by Unbeetable feeds is a grain free complete feed intended for all horse types. It contains a blend of organic and inorganic trace minerals.

Commercial Feeds & Supplements Complete Feeds Feeds

Ungulate (St.Hippolyt)

Hoof Health

Nutrients

Nutrition

Organic Trace Minerals

Ungulate by St.Hippolyt is a pelleted supplement intended to support hoof health in horses.

Hoof Supplement Supplement

Vegetable Herbal Minerals (St.Hippolyt)

Broodmare

Foal

Growth

Lactation

Vegetable Herbal Minerals by St.Hippolyt is a pelleted supplemented intended for pregnant, lactating and young horses.

Supplement

Veloci-T Max (Purina)

Caloric Energy

Competition Horses

Exercise

Performance

Purina Veloci‑T Max is a textured feed intended for racehorses, breeding stallions, early gestating mares, and yearlings. . It is formulated with higher fat and starch levels to meet the high energy demands of performance horses.

Commercial Feeds & Supplements Feeds Fiber

Velocity (Ark Nutrition)

Complete Feed

Exercise

Nutrition

Protein

Velocity by Ark Nutrition is a pelleted feed intended for horses in moderate to heavy work. It contains a blend of essential amino acids and fatty acids meant to support muscle development and improve muscle recovery.

Commercial Feeds & Supplements Feeds Protein Fat

Vermont Blend (Custom Equine Nutrition)

Amino Acid

Digestion

Mineral Balance

Yeast

Vermont Blend by Custom Equine Nutrition is a supplement intended to balance out the deficiencies when a horse is solely fed grass hay. It contains amino acids, biotin and minerals such as copper and magnesium.

Commercial Feeds & Supplements Mineral Supplements Supplement Amino Acid Supplements Minerals Inorganic Minerals

Vermont Blend No Selenium (Custom Equine Nutrition)

Amino Acid

Hoof Health

Mineral Balance

Yeast

Vermont Blend No Selenium is a mineral and vitamin supplement containing no added selenium for horses with diets that already contain adequate amounts of this trace mineral.

Commercial Feeds & Supplements Supplement Minerals Vitamins

Vermont Blend Pellets (Custom Equine Nutrition)

Amino Acid

Mineral Balance

Vitamins

Yeast

Vermont Blend by Custom Equine Nutrition is a pelleted supplement intended to be fed to horses solely on grass hay. It contains amino acids, biotin and minerals such as copper and magnesium.

Supplement

Vermont Blend Pro (Custom Equine Nutrition)

Gut Health

Hoof Health

Organic Trace Minerals

Ration Balancer

Vermont Blend Pro is a forage balancer and hoof supplement with added yeast cultures. It uses organic sources of copper and zinc. It has a lower feeding rate than the original Vermont Blend.

Commercial Feeds & Supplements Supplement Hoof Supplement Inorganic Minerals Minerals

Vermont Blend Pro No Selenium (Custom Equine Nutrition)

Amino Acid

Gut Health

Hoof Health

Ration Balancer

Vermont Blend Pro No Selenium by Custom Equine Nutrition is a supplement containing no added selenium intended for horses with diets that already contain adequate amounts of this trace mineral.

Commercial Feeds & Supplements Supplement Inorganic Minerals Minerals

Versa (Sollio Agriculture)

Health

Immunity

Nutrients

Nutrition

Versa is a pelleted feed intended for horses in all forms of exercise. This feed contains 14% crude protein and 6% fat. Versa is intended to be fed as an all-purpose feed.

Commercial Feeds & Supplements Complete Feeds

Vert Tendre (Mondou)- [Discontinued]

Energy

Fiber

Nutrition

Protein

Vert Tendre is a cubed feed that can be used to replace up to 50% of hay in the horse's diet. It consists of soy hulls, alfalfa meal, vegetable proteins and added vitamins and minerals.

Commercial Feeds & Supplements Feeds Fiber

Veteran Light (Allen & Page)

Digestion

Easy Keeper

Low NSC Feeds

Nutrition

Veteran Light from Allen & Page is a low-energy pelleted feed that is high in fibre with a low NSC content (8.5%). Veteran Light is a palatable horse feed with added probiotics.

Commercial Feeds & Supplements Complete Forages

Veteran Supplement (NAF Equine)

Mineral Balance

Senior

Vitamins

Yeast

Veteran Supplement from NAF Equine is intended for senior horses and ponies. This supplement is meant to support digestive health and provide micronutrient that are essential for overall health.

Commercial Feeds & Supplements Minerals Vitamins

Veteran Vitality (Allen & Page)

Digestion

Ingredient

Nutrition

Senior

Veteran Vitality from Allen & Page is a palatable feed for horses with poor dentition. This feed is high in fibre and includes added vitamins and minerals. Veteran Vitality contains herbs such as mint, nettle, dandelion, garlic, and fenugreek.

Commercial Feeds & Supplements Complete Forages

Via-Calm (AniMed)

Calming

Mineral Balance

Performance

Stress

AniMed's Vita-Calm is a supplement that is meant to reduce stress and provides vitamins, minerals, and amino acids. It can help calm horses, especially before events which may cause nervousness.

Calming Supplement Minerals

Victory! (Seminole)

Fat

Feed Efficiency

Performance

Stamina

Seminole Victory!™ is a beet pulp-based textured feed containing oats, barley and stabilized rice bran. It contains 29% NSC and is targetted to mature performance horses.

Commercial Feeds & Supplements Feeds

Vintage Mare & Foal (Blue Seal) – [Discontinued]

Complete Feed

Foal

Growth

Lactation

Vintage Mare & Foal by Blue Seal is a now-discontinued feed which was a high-protein, high-energy extruded feed targeted to broodmares during pregnancy and lactation, as well as growing horses. It contained grains such as oats, corn, and barley, as well as soybean and alfalfa meal.

Commercial Feeds & Supplements Feeds

Vintage Sweet (Blue Seal) – [Discontinued]

Caloric Energy

Complete Feed

Nutrition

Weight Issues

Vintage Sweet by Blue Seal is a now-discontinued feed with lower-protein, high-fat extruded feed formulated for working horses. It contained 12% crude protein and 8% fat, with energy supplied by cracked corn, oats, wheat, molasses, and oil.

Commercial Feeds & Supplements Feeds Sweet Feed