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L-Lysine - Feed Ingredient

L-Lysine is an essential amino acid that plays a vital role in protein synthesis, tissue repair, and growth in horses. It is one of the key building blocks of proteins and is necessary for the production of enzymes, hormones, and antibodies. Since horses cannot synthesize L-Lysine on their own, it must be obtained through their diet.

In equine nutrition, L-Lysine is often included in feed formulations and supplements to ensure adequate levels of this essential amino acid. It is particularly important for growing horses, lactating mares, and performance horses, as it supports muscle development, immune function, and overall health. Adequate L-Lysine intake is crucial for optimizing the nutritional balance of equine diets and ensuring proper growth and maintenance.

The following equine feeds, supplements and products contain L-Lysine as an ingredient.

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.
L-Lysine (Mad Barn)
Amino AcidAmino Acid
ImmunityImmunity
IngredientIngredient
JointsJoints
Lysine is an essential amino acid that is important for forming strong collagen bonds. Lysine is the most commonly deficient amino acid in equine diets.
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.
Omneity Premix – Vitamin & Mineral Supplement (Mad Barn)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
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.
Three Amigos (Mad Barn)
Amino AcidAmino Acid
MuscleMuscle
ProteinProtein
RecoveryRecovery
Three Amigos is an equine essential amino acid supplement containing lysine, methionine, and threonine in a 5:3:2 ratio. These are the three most common limiting amino acids in the horse's diet.
10% Racepower Cubes (Dodson & Horrell)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
NutritionNutrition
PerformancePerformance
10% Racepower Cubes is a feed designed for racehorses or horses in training requiring a lower protein and starch content. It includes fibre to help with digestion, vitamins and minerals to help with nutrient absorption, and yeast for optimal gut function.
12-12 Performance Horse (Matrix)
ExerciseExercise
FatFat
PerformancePerformance
ProteinProtein
12-12 Performance Horse by Matrix is a textured feed that provides high fat (12%) and moderate protein (12%) intended for performance horses.
12-8 Hi Fat Horse Pellet (Bryant Grain)
FatFat
HealthHealth
NutritionNutrition
PerformancePerformance
12-8 Hi Fat Horse Pellet from Bryant Grain is a pelleted feed intended for performance horses. This feed contains 12% crude protein and 8% fat.
12/8 Horse Pellets (West Feeds)
Caloric EnergyCaloric Energy
Competition HorsesCompetition Horses
ProteinProtein
StaminaStamina
12/8 Horse Pellets by West Feeds is a feed for horses requiring a higher energy diet with 12% protein and 8% fat content. This feed also includes inorganic vitamin and mineral additives and some added soybean oil.
12% Horse Pellet (Bryant Grain)
BroodmareBroodmare
HealthHealth
NutritionNutrition
PerformancePerformance
12% Horse Pellet from Bryant Grains is a pelleted feed intended for mature performance horses and broodmares. This feed is 12% crude protein and 10.50% crude fibre. 12% Horse Pellet contains added vitamins and minerals.
14% Complete Horse Pellet (Top Shelf Feeds)
FiberFiber
HealthHealth
NutritionNutrition
ProteinProtein
Top Shelf Feeds 14% Complete Horse Pellets is a pelleted feed providing 14% protein content. It is intended for horses with higher protein requirements.
14% Equine Developer Pellet (Masterfeeds)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Masterfeeds 14% Developer is a pelleted equine feed intended for pregnant and lactating mares as well as yearlings. It is designed to support healthy development and contains 100% organic trace minerals.
14% Performance (Running Horse)
Complete FeedComplete Feed
GrowthGrowth
LactationLactation
PerformancePerformance
Running Horse Performance is a texturized 14% protein and 6% fat feed formulated for performance, breeding and growing horses. It provides a higher energy density for equine athletes.
14% Performance Formula (Triple Crown) – [Discontinued]
ExerciseExercise
FlavorFlavor
PerformancePerformance
Weight IssuesWeight Issues
Triple Crown 14% Racing Formula is a discontinued feed which was a high-fat, high-energy feed containing a blend of grains and fat sources. It was designed for young performance horses, broodmares, breeding stallions, yearlings and weanlings.
14% Racepower Muesli (Dodson & Horrell)
Competition HorsesCompetition Horses
FiberFiber
GrainsGrains
PerformancePerformance
14% Racepower Muesli is a feed designed for racehorses and horses in training requiring a higher protein content and a lower starch content. It includes fibre to help with digestion, vitamins and minerals to help with nutrient absorption, and yeast for optimal gut function.
14% Racing Formula (Triple Crown)-[Discontinued]
EnergyEnergy
ExerciseExercise
NutritionNutrition
PerformancePerformance
Triple Crown 14% Racing Formula is a high calorie textured feed containing a blend of grains with soybean meal and molasses. It is intended for young performance horses, broodmares, breeding stallions and growing foals.
16% Mare & Foal (Bryant Grain)
GrowthGrowth
HealthHealth
MareMare
NutritionNutrition
16% Mare & Foal from Bryant Grain is a pelleted feed intended for mares, weanlings and yearlings. This feed contains 16% crude protein and 5% fat.
16% ProFat Horse Ration (Hoffman’s Horse Products)
FatFat
Ration BalancerRation Balancer
SeniorSenior
Weight IssuesWeight Issues
Hoffman's 16% ProFat Horse Ration is a pelleted feed with 18% fat, 16% protein and 12% fibre. It is intended to support weight management in horses requiring improved body condition.
30% Ration Balancer (Equine Advantage)
Omega 3-6-9Omega 3-6-9
ProteinProtein
Ration BalancerRation Balancer
VitaminsVitamins
30% Ration Balancer is intended to be fed alongside pasture or hay. It contains essential nutrients to support normal gut health, healthy hooves and coats.
4-In-1 (Meal) (MVP)
Coat QualityCoat Quality
DigestionDigestion
Hoof HealthHoof Health
JointsJoints
4-In-1 by MVP is a premixed supplement for horses to that intends to support joint function, hoof growth, hair coat and digestive function. It contains glucosamine, chondroitin sulphate, biotin, omega 3 & 6, and probiotics.
4-In-1 H/A Joint Supplement (MVP)
Coat QualityCoat Quality
DigestionDigestion
Hoof HealthHoof Health
JointsJoints
4-In-1 H/A Joint Supplement by MVP is a pelleted supplement that combines vitamins, minerals, and probiotics. It intends to support joint function, hoof growth, hair coat, and digestive system.
5-In-1 H/A (MVP)
Coat QualityCoat Quality
DigestionDigestion
Hoof HealthHoof Health
JointsJoints
5-In-1 H/A by MVP is a pelleted supplement for horses that intends to help support joint function. It is palatable with apple flavouring and contains glucosamine, hyaluronic acid, chondroitin sulphate, and MSM.
Accelerate (Right Choice)
Coat QualityCoat Quality
FatFat
NutritionNutrition
Weight IssuesWeight Issues
Accelerate is a textured complete feed with 12% protein and 8% fat. It is formulated for performance horses with added yeast and a combination of organic and inorganic minerals.
Accelerate GH (Right Choice)
FatFat
Gut HealthGut Health
PrebioticPrebiotic
ProbioticProbiotic
Accelerate GH is a pelleted complete feed with 12% protein, 8% fat, and 24% NSC. It contains organic minerals as well as pre and probiotics for digestive support.
Achiever Foal Non-GMO (Daily Dose Equine)
BroodmareBroodmare
FoalFoal
GrainsGrains
Ration BalancerRation Balancer
Achiever Foal Non-GMO by Daily Dose Equine is a premixed forage balancer intended for broodmares in their last 2 months of pregnancy and for foals up to age 3. It contains minerals, vitamins, amino acids, and probiotics.
Achiever Non-GMO (Daily Dose Equine)
GrainsGrains
Gut HealthGut Health
Ration BalancerRation Balancer
VitaminsVitamins
Achiever Non-GMO by Daily Dose Equine is a textured feed that is intended to be fed as a forage ration balancer. It contains vitamins, minerals, amino acids, and probiotics meant for proper nutrient absorption.
Achiever-Lite (Daily Dose Equine)
GrainsGrains
Gut HealthGut Health
NutritionNutrition
Ration BalancerRation Balancer
Achiever-Lite by Daily Dose Equine is a textured feed that is intended to be fed as a forage ration balancer for easy keepers. It contains vitamins, minerals, amino acids, and probiotics for proper nutrient absorption.
Alfa Essentials (Tribute)
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
Ration BalancerRation Balancer
VitaminsVitamins
Alfa Essentials is a ration balancer formulated for diets that contain greater than 50% legume forages such as alfalfa. It provides higher phosphorous than calcium to balance elevated levels of calcium.
Alfa Growth (Tribute Equine)
Complete FeedComplete Feed
FatFat
GrowthGrowth
LactationLactation
Tribute Alfa Growth® is a textured feed for growing horses and pregnant or lactating broodmares that are consuming 50% or more legume forages such as alfalfa hay.
Alfa Prime (Running Horse)
EnergyEnergy
ExerciseExercise
Feed EfficiencyFeed Efficiency
PerformancePerformance
Alfa Prime is a complete extruded feed intended for equine athletes with 14% protein and 8% fat. It is formulated with digestible fibre from alfalfa meal and soybean hulls and utilizes vegetable oil, rice bran and flaxseed as fat sources.
AlfaForce Yellow Tag (AlfaForce Equine)
Low NSC FeedsLow NSC Feeds
NutrientsNutrients
PerformancePerformance
ProteinProtein
AlfaForce Yellow Tag by AlfaForce Equine is a pelleted feed designed for all classes of horses. It is formulated with 16% protein, 3% fat and has a maximum non-structural carbohydrate level of 13.9%.
Alfalfa Advantage (ProElite)
Mineral BalanceMineral Balance
NutritionNutrition
Ration BalancerRation Balancer
VitaminsVitamins
ProElite Alfalfa Advantage is a low-feeding rate pelleted ration balancer intended to balance diets composed of alfalfa forages. It can be fed to all classes of horses.
Alfalfa Support (Pureform)
AntioxidantAntioxidant
JointsJoints
Mineral BalanceMineral Balance
VitaminsVitamins
Pureform Alfalfa Support is a vitamin/mineral supplement designed for horses on diets containing high levels of alfalfa hay. It is suitable for all life stages and includes ingredients for joint health, such as glucosamine and MSM.
AlfaMax RX (Alfamax Feed)
Complete FeedComplete Feed
DigestionDigestion
HealthHealth
Low NSC FeedsLow NSC Feeds
AlfaMax RX from Alfamax Feed is a complete pelleted feed. AlfaMax RX contains no soybean meal & is intended for horses' requiring a low NSC content (starch + sugars).
Align (OE Nutraceuticals)
Gut HealthGut Health
Mineral BalanceMineral Balance
NutritionNutrition
VitaminsVitamins
Align is a vitamin and mineral supplement intended for performance horses. It contains prebiotics and probiotics which are meant to support gut health.
All In (Woody’s Horse Nutrition)
HealthHealth
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
All In by Woody’s Horse Nutrition is a pelleted vitamin and mineral supplement intended for horses on a forage-based or unfortified grain diet. It contains the limiting amino acids lysine, methionine, and threonine.
All in One (Herbs for Horses)
Gut HealthGut Health
HealthHealth
Mineral BalanceMineral Balance
PerformancePerformance
All in One from Herbs for Horses is intended to be a complete supplement for horses. All in One is intended to improve digestion, and rebuild muscle. This supplement contains added vitamins and minerals.
All Phase (Lifeline)
FiberFiber
Grain FreeGrain Free
Mineral BalanceMineral Balance
VitaminsVitamins
All Phase from Lifeline is a pelleted ration balancer intended for all horse types. This ration balancer contains 20% protein.
All-In-One Supplement (Extreme Equine Supplements)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
NutritionNutrition
VitaminsVitamins
All-In-One Supplement by Extreme Equine Supplements is a comprehensive vitamin and mineral formula designed to support overall health and development in horses.
All-Phase Balancer Formula (Bartlett Milling) [Discontinued]
GrainsGrains
NutritionNutrition
ProteinProtein
Ration BalancerRation Balancer
Bartlett All-Phase Balancer Formula is a grain balancer pellet intended for all classes of horses to supply protein, vitamins and minerals that may be lacking in the equine diet.
ALL-PRO (AniMed)
DigestionDigestion
HealthHealth
StressStress
YeastYeast
AniMed's ALL-PRO powder supplement aims to promote normal and healthy digestive functions and contains pre- and probiotics. It is meant to be beneficial during times of stress or changes in diet.
Amber Grains Classic 12-4 Fiberwise (Coker Feed Mill)
DigestionDigestion
Easy KeeperEasy Keeper
FiberFiber
RecoveryRecovery
Amber Grains Classic 12-4 Fiberwise by Coker Feed Mill is a high-fiber (20%) textured feed intended for easy keepers and horses in recovery.
Amber Grains Classic 12-5 Pellet (Coker Feed Mill)
DigestionDigestion
HealthHealth
NutrientsNutrients
NutritionNutrition
Amber Grains Classic 12-5 Pellet by Coker Feed Mill is a pelleted feed intended for active horses not in heavy work.
Amber Grains Classic 12-6 Textured (Coker Feed Mill)
NutrientsNutrients
NutritionNutrition
PrebioticPrebiotic
ProbioticProbiotic
Amber Grains Classic 12-6 Textured by Coker Feed Mill is a textured feed intended to supplement hay. It is designed for active horses not in heavy work.
Amber Grains Classic 14-8 Pellet (Coker Feed Mill)
DigestionDigestion
Gut HealthGut Health
HealthHealth
ProbioticProbiotic
Amber Grains Classic 14-8 Pellet by Coker Feed Mill is a corn-free pelleted feed intended to support overall health in horses in moderate work and older horses with sensitive digestive systems.
Amber Grains Classic Senior Textured (Coker Feed Mill)
DigestionDigestion
FiberFiber
Gut HealthGut Health
SeniorSenior
Amber Grains Classic Senior Textured by Coker Feed Mill is a textured feed intended to support digestion and body condition in senior horses.
Amber Grains Elite 10-10 Performance (Coker Feed Mill)
DigestionDigestion
EnergyEnergy
MuscleMuscle
PerformancePerformance
Amber Grains Elite 10-10 Performance by Coker Feed Mill is a high calorie textured feed intended to support digestion, muscle gain and endurance in performance horses.
Amber Grains Elite 12-12 Performance (Coker Feed Mill)
DigestionDigestion
EnergyEnergy
Gut HealthGut Health
PerformancePerformance
Amber Grains Elite 12-12 Performance by Coker Feed Mill is a textured feed intended to provide cool energy for performance horses.
Amber Grains Elite Front Runner (Coker Feed Mill)
Caloric EnergyCaloric Energy
EnergyEnergy
Gut HealthGut Health
PerformancePerformance
Amber Grains Elite Front Runner by Coker Feed Mill is a high-energy feed intended for performance. It is formulated to support strength, stamina and endurance in horses.
Amber Grains Elite Mare and Foal (Coker Feed Mill)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Amber Grains Elite Mare and Foal by Coker Feed Mill is a textured feed intended to support overall health in pregnant mares, lactating mares and growing foals.
Amber Grains Elite Serenity Ultra LS (Coker Feed Mill)
HealthHealth
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
SeniorSenior
Amber Grains Elite Serenity Ultra LS by Coker Feed Mill is a low NSC (8.94%) pelleted feed intended for horses with sensitive digestive systems.
Amber Grains Elite Super Senior (Coker Feed Mill)
DigestionDigestion
FiberFiber
ProbioticProbiotic
SeniorSenior
Amber Grains Elite Super Senior by Coker Feed Mill is a textured feed intended to support overall health and digestion in senior horses.
Amino Edge (Bluebonnet Feeds)
Amino AcidAmino Acid
MuscleMuscle
Omega 3-6-9Omega 3-6-9
PerformancePerformance
Amino Edge by Bluebonnet Feeds is an amino acid supplement that also includes antioxidants and essential fatty acids. It is intended to support muscle and performance.
Amino Max Extra Strength (Basic Equine Nutrition)
Amino AcidAmino Acid
GrowthGrowth
HealthHealth
MetabolismMetabolism
Amino Max Extra Strength is a combination of three essential amino acids: lysine, threonine and methionine. These amino acids are the most-limiting in equine diets. Supplementation may support topline, gut health and more.
Amino-Fac-41 (Uckele)
Amino AcidAmino Acid
BroodmareBroodmare
GrowthGrowth
ToplineTopline
Amino Fac-41 is a powdered amino acid supplement for horses. It contains 4% Lysine, the amino acid most commonly deficient in the equine diet. This supplement is designed to help support muscle mass, bone and joint structure, and immune system function.

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