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Yeast Culture - Feed Ingredient

Yeast culture refers to the dried and fermented product resulting from the growth of live yeast cells, most commonly Saccharomyces cerevisiae, on a nutrient-rich substrate. Unlike live yeast or yeast extract, yeast culture includes both the residual yeast cells (viable or non-viable) and the media on which the yeast was grown. It is not considered a probiotic, but rather a fermentation product with functional feed properties.

In equine feed formulations, yeast culture is used as a digestive aid and nutritional supplement. It contains fermentation metabolites, B-vitamins, peptides, amino acids, and cell wall components such as β-glucans and mannan-oligosaccharides. These components are thought to support microbial activity in the hindgut and improve fiber digestion and nutrient utilization.

The following equine feeds, supplements and products contain Yeast Culture as an ingredient.

Feeds, Supplements & Products
Luminance Fortified Equine Conditioning Supplement (Hallway Feeds)
Caloric EnergyCaloric Energy
Omega 3-6-9Omega 3-6-9
PerformancePerformance
Weight IssuesWeight Issues
Hallway Luminance is a fat supplement for horses that require additional body condition. It is formulated to add calories to the diet for performance horses and horses being prepared for sale.
M10 Balancer (McCauley’s)
Easy KeeperEasy Keeper
Mineral BalanceMineral Balance
SeniorSenior
VitaminsVitamins
M10 Balancer by McCauley's is a pelleted vitamin and mineral supplement intended for horses at maintenance or in light work.
M30 (McCauley’s)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
PerformancePerformance
M30 by McCauley's is a supplement intended to balance the diet of all horse types.
Maintenance Pellets (Ritchie Smith – Harmony)
GrowthGrowth
HealthHealth
NutritionNutrition
Weight IssuesWeight Issues
Maintenance Pellets from Ritchie Smith's Harmony is a pelleted feed intended for growing horses and horses in moderate work. This feed contains 13% crude protein and 16% crude fibre. Maintenance Pellets are intended for horses who need additional calories.
Mare & Foal (Ace Hi Feeds)
BroodmareBroodmare
FoalFoal
GrowthGrowth
NutritionNutrition
Mare & Foal by Ace Hi Feeds is a supplemental feed intended for growing, gestating and lactating horses. It contains at least 16% protein from sources such as soybean meal, whey, and dried distillers grains.
Mare & Foal (Kelley’s Feed)
BroodmareBroodmare
FoalFoal
GrowthGrowth
NutritionNutrition
Mare & Foal by Kelley's Feed is a supplemental feed intended for growing, gestating, and lactating horses. It is a barley-based feed that contains at least 16% protein, added vitamins, and a blend of organic and inorganic minerals.
Mare & Foal (Seminole)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Seminole Mare & Foal™ is a textured feed designed for foals, weanlings, and late-gestation or lactating broodmares. This oat-based feed contains corn, digestible fibre, added lysine, and chelated trace minerals.
Mare Cube (Excel Equine Feeds)
BroodmareBroodmare
GrowthGrowth
NutrientsNutrients
NutritionNutrition
Mare Cube by Excel Equine Feeds is a cubed feed fortified with protein, amino acids, vitamins and minerals. It is intended for broodmares and growing horses.
Mash & Mix (Cavalor)
Competition HorsesCompetition Horses
DigestionDigestion
ElectrolyteElectrolyte
RecoveryRecovery
Cavalor Mash & Mix is a wheat bran and linseed-based feed intended for horses after heavy work or during times of stress. It is a high-energy feed with 37% NSC (32.5% starch, 4.5% sugars) and 7% crude fat.
Medicine Bag Complete (Stance Equine USA)
GrowthGrowth
HealthHealth
Mineral BalanceMineral Balance
MuscleMuscle
Medicine Bag Complete by Stance Equine is a powdered mineral supplement intended for all types of horses.
Mega Dose (Horse Guard)
DigestionDigestion
Gut HealthGut Health
Mineral BalanceMineral Balance
VitaminsVitamins
Mega Dose by Horse Guard is a supplement that contains vitamins, minerals, and probiotics. It is intended to assist with digestion, gut health and hoof health.
Mega-Mag (Pellets) (MVP)
Amino AcidAmino Acid
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
Mega-Mag by MVP is a pelleted supplement designed for alfalfa hay/grain diets that provide vitamins, minerals, amino acids, and probiotics intended horses of all life stages.
Meganutril Ultra (Equina USA)
AntioxidantAntioxidant
HealthHealth
ImmunityImmunity
VitaminsVitamins
Meganutril Ultra from Equina USA is a mineral supplement for horses. Meganutril Ultra contains vitamins, amino acids, and yeast. This supplement is intended to balance nutritional deficiencies in horses.
Metabolic Miracle (Aterak Nutrition)
Grain FreeGrain Free
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
VitaminsVitamins
Metabolic Miracle by Aterak Nutrition is a feed targeted toward horses or ponies with metabolic disorders (Cushing's, Founder, Laminitis). This feed contains the vitamins and minerals necessary to support a well-balanced diet and is high in fibre.
Micro-Max (Kentucky Equine Research)
Gut HealthGut Health
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
KER Micro-Max is a vitamin/mineral supplement intended for horses on high-forage diets. It contains macro- and micro-minerals, and vitamins A, D and E.
Micro-Phase (Kentucky Performance Products)
AntioxidantAntioxidant
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Kentucky Performance Products Micro-Phase is a vitamin and trace mineral supplement designed for horses on forage-only diets or those fed concentrate feeds below the recommended feeding rate. It is an alfalfa-based pelleted supplement containing a mix of organic and inorganic minerals.
Milestone Compete Horse Food (Muenster)
Coat QualityCoat Quality
Competition HorsesCompetition Horses
FatFat
MuscleMuscle
Complete Horse Food is intended to promote muscle growth and function. It is ideal for performance horses and breeding stock as extra calories and energy are needed.
Milestone Foal Horse Food (Muenster)
FiberFiber
FoalFoal
GrowthGrowth
ProteinProtein
Foal Horse Food is intended for horses and ponies under the age of 1. The diet includes nutrients needed for normal growth and development.
Milestone Life Horse Food (Muenster)
Caloric EnergyCaloric Energy
FiberFiber
GrainsGrains
Hay StretcherHay Stretcher
Life Horse Food is designed to be a hay replacer and provide nutrients to horses and ponies of all ages. It is ideal for horses that are in moderate work.
Milestone Life Plus Horse Food (Muenster)
FatFat
FiberFiber
GrainsGrains
Omega 3-6-9Omega 3-6-9
Life Plus is a pelleted feed intended to provide additional energy and nutrients to all horses and ponies. It is also suitable for performance horse and breeding horses as they need extra essential nutrients.
Milestone Optimize Horse Supplement (Muenster)
FatFat
NutritionNutrition
Omega 3-6-9Omega 3-6-9
Weight IssuesWeight Issues
Optimize Horse Supplement is a high-fat feed intended to provide more energy to breeding horses and performance horses. It contains nutrient dense ingredients such as coconut meal and flaxseed.
Milestone Senior Horse Food (Muenster)
FatFat
FiberFiber
MareMare
SeniorSenior
Milestone Senior Horse Food is a pelleted feed intended for older horses in light to moderate work. It is suitable as a supplemental feed when forage availability is limited. It contains high fiber, low starch, alfalfa, coconut, flax, and algae meal.
Milk & Grow Pellets (Uckele)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Milk & Grow Pellets is a vitamin, mineral, probiotic, and amino acid pelleted supplement formulated for lactating and gestating mares as well as growing foals that have increased nutrient demands.
Min-A-Vite (Blue Seal) [DISCONTINUED]
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Min-A-Vite from Blue Seal is a vitamin and mineral supplement intended for horses and ponies of all ages and work levels. Min-A-Vite uses a mix of inorganic and organic trace minerals.
Molasses Flavor Horse Treats (Agrimaster)
EnergyEnergy
FlavorFlavor
NutrientsNutrients
VitaminsVitamins
Molasses Flavor Horse Treats by Agrimaster is a horse treat formulated with added minerals and vitamins A and E, and is intended for all classes of horses.
Moulee HM 13% Liberte (Nature Belisle)
Complete FeedComplete Feed
GrainsGrains
NutritionNutrition
PerformancePerformance
Moulee HM 13% Liberte is a textured feed intended for performance horses and those in heavy work. It contains 13% protein, 6.09% fat, and 7.86% fibre.
Moulee Jument 16% Liberte (Nature Belisle)
BroodmareBroodmare
Complete FeedComplete Feed
NutritionNutrition
ProteinProtein
Moulee Jument 16% Liberte is a cubed feed intended for broodmares. It contains 16% protein, 4.85% fat, and 8.35% fibre.
Moulee Poulain Liberte 17% (Nature Belisle)
Complete FeedComplete Feed
FoalFoal
GrowthGrowth
NutritionNutrition
Moulee Poulain Liberte 17% by Nature Belisle is intended for horses and ponies aged 0-2 years of age. This cubed feed contains 17% protein as its primary energy source.
Moulee Q-F 15% Liberte (Belisle)
EnergyEnergy
FatFat
FiberFiber
NutritionNutrition
Moulee Q-F 15% is a complete feed with 15% crude protein and 7% crude fat. It also contains vitamin E and selenium. This feed is intended for all horses and ponies.
Moulée Quali-Fibre (Nature Belisle)
FiberFiber
Omega 3-6-9Omega 3-6-9
ProbioticProbiotic
VitaminsVitamins
Moulee Quali-fibre is a feed intended for horses with higher energy demands, such as performance horses. It contains 15% protein, 7% fat and 23% fibre with added vitamin E and selenium.
MuesliMax (Hallway)
Complete FeedComplete Feed
Competition HorsesCompetition Horses
EnergyEnergy
FatFat
MuesliMax from Hallway is a sweet feed fortified with Stamm 30 formulated for high-performance horses with high energy needs. This feed provides energy from oats, barley, vegetable oil, and black sunflower seeds. MuesliMax contains 11% protein, 8% fat, and 10% fibre.
MultiSentials 1:1 (Sentinel Care)
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
PerformancePerformance
VitaminsVitamins
MultiSentials 1:1 by Sentinel Care is a complete granular supplement formulated to correct nutritional deficiencies caused by hay and pasture-based diets. It is suitable for all classes of working horses
Natur-Alfa Oat (Excel Equine Feeds)
EnergyEnergy
HealthHealth
NutrientsNutrients
NutritionNutrition
Natur-Alfa Oat from Excel Equine feeds is a cubed feed. Natur-Alfa Oat is an oat-alfalfa feed intended for a wide range of horse lifestyles.
Natur-Oat (Excel Equine Feeds)
Easy KeeperEasy Keeper
HealthHealth
NutrientsNutrients
NutritionNutrition
Natur-Oat from Excel Equine Feeds is a cubed feed. Natur-Oat is intended for horses in various life stages and is composed of ground oats.
Natural Blend Performance (Bluebonnet Feeds)
GrainsGrains
NutrientsNutrients
PerformancePerformance
ProbioticProbiotic
Natural Blend Performance from Bluebonnet Feeds is intended for horses at all life stages with added soybean as a source of fat. It contains 12% protein, 10% fat, and 15% fibre, with added probiotics and organic trace minerals.
Natural Digestive Support – BioEquine Supplement
DigestionDigestion
Mineral BalanceMineral Balance
ProbioticProbiotic
Toxin BinderToxin Binder
BioEquine Natural Digestive Support is an equine gut health supplement containing probiotics, toxin binders, Diatomaceous Earth, minerals, vitamins and amino acids.
Naturals Pelleted Horse Feed (Triple Crown)
Complete FeedComplete Feed
EnergyEnergy
HealthHealth
ProteinProtein
Triple Crown Naturals is a pelleted horse feed made with GMO-free ingredients and without corn, soybean, or molasses. Energy sources include alfalfa meal, ground oats, wheat middlings, and flaxseed.
No.14 Lo-Cal Balancer (Baileys Horse Feeds)
Easy KeeperEasy Keeper
Hoof HealthHoof Health
Metabolic SyndromeMetabolic Syndrome
Ration BalancerRation Balancer
No.14 Lo-Cal Balancer from Baileys Horse Feeds is intended for horses and ponies at rest or in light work or those who are laminitis prone. This feed contains 30mg/kg of Biotin, which is proven to support hoof health.
No.7 Stud & Youngstock Mix (Baileys Horse Feeds)
FoalFoal
GrowthGrowth
NutritionNutrition
StallionStallion
No.7 Stud & Youngstock Mix from Baileys Horse Feeds is intended for growing youngstock, covering stallions, and pregnant and lactating mares. This feed contains 32% of starch, such as micronized peas, micronized maize, and oats.
Nu-Image PLATINUM (Select The Best)
Coat QualityCoat Quality
FatFat
Omega 3-6-9Omega 3-6-9
Skin + HairSkin + Hair
Nu-Image PLATINUM by Select The Best is a coat supplement for performance horses that contains omega-3, 6 and 9 fatty acids, amino acids, B-vitamins, copper and zinc.
NutrientWise (Wiser Concepts)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
NutrientWise by Wiser Concepts is a low-calorie vitamin and trace mineral supplement formulated to help balance a horse’s diet.
OBS Generation (Ocala Breeders’ Feed and Supply)
FatFat
Mineral BalanceMineral Balance
ProteinProtein
VitaminsVitamins
OBS Generation is a complete pelleted feed formulated for horses at maintenance. It is made with wheat middlings, oats and corn, and provides 14% protein and 6% fat.
OBS Gest-O-Lac (Ocala Breeders Feed & Supply)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
OBS Gest O Lac is a textured horse feed for broodmares in late gestation, lactating mares, and foals. It contains high protein and fat content to support growth and lactation. Yeast culture is added to help support gut health.
OBS Hi-Amo Plus (Ocala Breeders Feed & Supply)
Amino AcidAmino Acid
ExerciseExercise
GrowthGrowth
LactationLactation
OBS Hi-Amo Plus is a textured concentrate feed designed to support growth and reproductive function. It contains added lysine, digestible fibre sources, and selenium yeast.
OBS Pellet Plus (Ocala Breeders Feed & Supply)
ExerciseExercise
FoalFoal
GrowthGrowth
LactationLactation
OBS Pellet Plus is a pelleted horse feed with added lysine for horses in training, broodmares, and growing horses. Pellet Plus contains vegetable oil as a source of energy and selenium yeast to support immune and reproductive function.
OBS Performance Blend (Ocala Breeders Feed & Supply)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Competition HorsesCompetition Horses
Weight IssuesWeight Issues
OBS Performance Blend is a textured horse feed targeted to yearlings and horses in heavy training or that require improvement in condition. It provides a higher energy density and fat content to support weight management.
OBS Professional Blend (Ocala Breeders Supply)
Competition HorsesCompetition Horses
ExerciseExercise
FatFat
PerformancePerformance
OBS Professional Blend is a complete textured feed intended for high-performance horses. It is formulated with oats, corn and beet pulp and contains 10% fat.
OBS Racing Blend (Ocala Breeders Feed & Supply)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
ExerciseExercise
PerformancePerformance
OBS Racing Blend is a horse feed formulated for racehorses. Racing Blend provides a higher energy density to meet the needs of horses in heavy training. This feed contains beet pulp and steam-crimped oats.
OBS Sport Feed (Ocala Breeders’ Feed and Supply)
Amino AcidAmino Acid
Caloric EnergyCaloric Energy
ExerciseExercise
PerformancePerformance
OBS Sport Feed is a complete feed intended for performance horses. It is formulated with wheat middlings, soybean hulls and alfalfa meal. It contains 13% protein and 10% fat.
OCD Pellets (Doc’s Products)
Bone HealthBone Health
GrowthGrowth
HealthHealth
JointsJoints
OCD Pellets by Doc's Products is a bone and joint supplement intended for horses. It supplies 900 mg of silicon and 50 mg of hyaluronic acid in each 28 g serving.

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