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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.
CarbCare Show & Pleasure (Legends)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
ExerciseExercise
PerformancePerformance
Legends CarbCare Show & Pleasure is a pelleted feed for adult horses in light to moderate activity. It lists a maximum NSC of 20%, based on 15% starch and 5% sugar content.
Carbolyte (Excel Equine Feeds)
HealthHealth
IngredientIngredient
NutrientsNutrients
NutritionNutrition
Carbolyte from Excel Equine Feeds is a pelleted feed. This feed is intended for horses who require a reduced starch diet.
Carboraider Complete (King Brand)
Complete FeedComplete Feed
HealthHealth
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Carboraider Complete from King is a pelleted complete feed for horses. Carboraider Complete is intended for adult horses who require lower sugar and starch levels in their diets. This feed is formulated with beet pulp and a rice bran base.
Carboraider Senior (King)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
SeniorSenior
Carboraider Senior by King is a complete feed intended for senior horses requiring controlled levels of starch and sugar.
CFS Elevate ABF (Clarence Farm Services Limited)
Easy KeeperEasy Keeper
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
CFS Elevate ABF is a ration balancer that provides vitamins and minerals without significantly increasing calories in the diet. It is formulated with 12% protein and 4% fat, and can be fed alone or in combination with other feeds.
CFS Honesty ABF (Clarence Farm Services Limited)
CalmingCalming
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
FiberFiber
CFS Honesty ABF is a pelleted feed for horses at various life stages. It provides moderate calorie density with energy primarily derived from fibre and vegetable fat.
CFS Pro Horse 300 ABF (Clarence Farm Services)
BroodmareBroodmare
FoalFoal
GrowthGrowth
StallionStallion
CFS Pro Horse 300 is a coarse sweet feed intended for foals, broodmares, and stallions. This feed contains quality flaked grains to potentially increase digestibility. It has 16% protein, 4% fat, and 15% fibre.
CFS Select ABF 30% (Clarence Farm Services Limited)
FoalFoal
GrowthGrowth
LactationLactation
Ration BalancerRation Balancer
CFS Select ABF 30% is an essential vitamin and mineral supplement with 30% protein content. It is intended for lactating mares and foals to support growth and development.
Chelator Minerals (Equi-Boss Performance)
HealthHealth
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Chelator Minerals from Equi-Boss Performance is a complete mineral and vitamin supplement that is intended to contribute to overall health.
CJ (Platinum Performance)
ExerciseExercise
JointsJoints
Omega 3-6-9Omega 3-6-9
RecoveryRecovery
CJ by Platinum Performance is an equine joint supplement for performance and senior horses. Active ingredients include avocado-soy unsaponifiables (ASU), MSM, glucosamine, hyaluronic acid, and Boswellia serrata extract.
Classic Care (Lifeline)
Complete FeedComplete Feed
DigestionDigestion
Grain FreeGrain Free
Metabolic SyndromeMetabolic Syndrome
Classic Care by Lifeline is a grain and molasses-free pelleted feed. It is intended for easy keepers and horses susceptible to metabolic disorders.
Coat Medic (AniMed)
Amino AcidAmino Acid
Coat QualityCoat Quality
Skin + HairSkin + Hair
VitaminsVitamins
Coat Medic from AniMed is a vitamin and mineral supplement that is meant to aid in the growth and maintenance of horses' coats, manes, and tails.
CocoHoof Pellets (Uckele)
Coat QualityCoat Quality
Hoof HealthHoof Health
Mineral BalanceMineral Balance
NutrientsNutrients
CocoHoof Pellets is an amino acid, fatty acid, mineral and vitamin supplement formulated to support skin health and hoof growth in horses. CocoHoof is recommended for all horses and ponies of all work levels.
Colorado Mix (HorseTech)
Amino AcidAmino Acid
Hoof HealthHoof Health
NutrientsNutrients
YeastYeast
Colorado Mix by HorseTech is a powdered supplement that contains added biotin and yeast to promote optimal hoof growth and strength.
Colostrum Supplement (Manna Pro)
FoalFoal
GrowthGrowth
Gut HealthGut Health
ProteinProtein
Colostrum Supplement by Manna Pro is a colostrum additive designed to be fed to newborn calves, kids, lambs, foals, piglets, llama, alpacas, puppies and kittens. It is milk protein-based and fortified with added vitamins and minerals.
Combined 4-Way (Equerry’s)
DigestionDigestion
JointsJoints
Skin + HairSkin + Hair
VitaminsVitamins
Combined 4-Way by Equerry's is a powdered supplement that intends to support digestive, hoof, coat and joint health in senior or performance horses.
Competitive Edge Equine (Stride Animal Health) – [Discontinued]
Amino AcidAmino Acid
AntioxidantAntioxidant
HealthHealth
Omega 3-6-9Omega 3-6-9
Competitive Edge Equine from Stride Animal Health is an amino acid supplement that also includes antioxidants and essential fatty acids. It is intended to support muscle and performance.
Competitor (Barastoc)
AntioxidantAntioxidant
EnergyEnergy
Gut HealthGut Health
PerformancePerformance
Competitor from Barastoc is a pelleted feed for performance horses. It contains both slow and fast release energy, and it is highly digestible and promotes gut health. It also contains antioxidants.
Complement Advantage (Excel Equine Feeds)
FiberFiber
HealthHealth
NutrientsNutrients
NutritionNutrition
Complement Advantage by Excel Equine Feeds is a textured feed intended for hard keepers or horses in heavy training.
Complement Control (Excel Equine Feeds)
EnergyEnergy
HealthHealth
NutritionNutrition
PerformancePerformance
Complement Control by Excel Equine Feeds is a pelleted feed intended to provide nutrition with a low feeding rate for growing, performance, breeding and maintenance horses.
Complement Foundation (Excel Equine Feeds)
HealthHealth
ImmunityImmunity
NutrientsNutrients
NutritionNutrition
Complement Foundation by Excel Equine Feeds is a beet pulp based textured feed intended for all horse types.
Complete (Equis Feed)
Gut HealthGut Health
Mineral BalanceMineral Balance
VitaminsVitamins
YeastYeast
Complete by Equis Feeds is a high-protein, high-fiber and low-fat complete feed intended for adult horses. It is formulated with alfalfa, wheat middlings, molasses, organic minerals, and digestive aids.
Complete (Triple Crown)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
NutritionNutrition
PerformancePerformance
Triple Crown Complete is a high-fibre feed with beet pulp and added vitamins and minerals designed for performance horses. This feed provides 12% protein and 12% fat in a textured format.
Complete (Woody’s Feed)
Complete FeedComplete Feed
FatFat
FiberFiber
ProteinProtein
Woody's Complete is a grain-free, pelleted horse feed formulated to meet the needs of most adult horses. Energy sources include beet pulp, soybean hulls, alfalfa meal, rice bran, flaxseed, and vegetable oil.
Complete Plus HA (Basic Equine Nutrition)
Amino AcidAmino Acid
Hoof HealthHoof Health
JointsJoints
NutrientsNutrients
Complete Plus HA is an equine joint supplement that provides a combination of minerals, vitamins and nutraceuticals. It contains hyaluronic acid, MSM, glucosamine, biotin, amino acids and flax.
Complete Supplement Pellets (Ritchie Smith – Harmony)
HealthHealth
NutrientsNutrients
NutritionNutrition
Ration BalancerRation Balancer
Complete Supplement Pellets from Ritchie Smith's Harmony is a vitamin, mineral, hoof, and gut supplement. Complete Supplement Pellets are intended for horses on forage-based diets, or horses with metabolic issues.
Comprehensive Feed Balancer (TopSpec)
Gut HealthGut Health
Hoof HealthHoof Health
Ration BalancerRation Balancer
YeastYeast
Comprehensive Feed Balancer from TopSpec is a palatable and pelleted ration balancer. This ration balancer contains yeast to support digestive health and biotin to support hoof health. This feed is ideal for horses and ponies of any age or work level.
Cool & Safe (Thomas Moore Feed)
Complete FeedComplete Feed
EnergyEnergy
ExerciseExercise
NutrientsNutrients
Cool & Safe is a complete feed from Thomas Moore Feed. It is low in starch and sugars and contains minerals, vitamins, and postbiotics. It is intended to provide energy through fat and fiber for training or exercising horses.
Cool Carb (Banks Mill Feeds)
FiberFiber
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Banks Cool Carb is a low sugar and starch feed with 10.5% NSC, intended for horses with gut issues and insulin resistance. This feed contains soybean hulls, wheat middlings, alfalfa meal and beet pulp.
Cool Command Balancer 30 (Hubbard Feeds)
Mineral BalanceMineral Balance
PrebioticPrebiotic
ProteinProtein
VitaminsVitamins
Cool Command Balancer 30 by Hubbard is a ration balancer that is meant to supply vitamins and organic minerals. It provides energy from plant proteins and grain products.
Cool Command Senior Horse (Hubbard Feeds)
Coat QualityCoat Quality
DigestionDigestion
JointsJoints
SeniorSenior
Cool Command Senior Horse by Hubbard is a higher fat complete feed intended for senior horses with dental issues or joint health concerns. It contains 14% protein and 8% fat, with added MSM, chondroitin sulfate and glucosamine.
Cool Fusion (Lifeline)
EnergyEnergy
FatFat
FiberFiber
NutritionNutrition
Cool Fusion by Lifeline is a high-fat, high-fiber feed formulated for performance horses and stallions. This feed contains 12% protein, 12% fat, and 14% fiber.
Cool Stride (Banks Mill Feeds)
Easy KeeperEasy Keeper
FiberFiber
NutrientsNutrients
ProteinProtein
Cool Stride is a low NSC (12.4%) textured horse feed intended for easy keepers and boarding facilities. It contains added calcium meant to buffer stomach acid and added chromium meant to support metabolic health.
Cool Time (Capstone Horse Feed)
DigestionDigestion
EnergyEnergy
NutritionNutrition
PerformancePerformance
Cool Time by Capstone Horse Feed is a high energy, oat-free feed intended for high performance horses that are prone to tying up, excitability and excessive sweating.
Country Feeds Adult 12 Textured (Nutrena) [Discontinued]
DigestionDigestion
Hoof HealthHoof Health
MuscleMuscle
NutritionNutrition
Country Feeds Adult 12 Textured is a textured complete feed formulated for all activity levels of mature horses. It provides 12% protein, 6% fat, and 24% NSC.
Country Feeds Complete (Nutrena)- [Discontinued]
Complete FeedComplete Feed
EnergyEnergy
NutritionNutrition
ProteinProtein
Country Feeds Complete is a high fibre complete feed designed to provide 12% protein, 3% fat, and 22% NSC. It is marketed as a hay replacement.
CR ProFibre Crunch (Trouw Nutrition)
Complete FeedComplete Feed
FiberFiber
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
CR ProFibre Crunch is a mixed high fibre pellet and extruded feed with less than 10% NSC content. Energy sources include soy hulls, alfalfa, and beet pulp. ProFibreCrunch also contains flax as a source of omega-3 fatty acids.
Critical Care Metabolic Support (Natural Horse Vet)
MetabolismMetabolism
Metabolic SyndromeMetabolic Syndrome
Mineral BalanceMineral Balance
VitaminsVitamins
Critical Care Metabolic Support by Natural Horse Vet is a powdered supplement intended to support horses with insulin resistance, proper weight management, and thyroid function.
Cut’n Slide (Running Horse Elite Equine Nutrition)-[Discontinued]
EnergyEnergy
ExerciseExercise
PerformancePerformance
Ration BalancerRation Balancer
This feed has been renamed and repackaged to Prime Running Horse Feeds. Running Horse Cut n’ Slide was a nutritional supplement containing vegetable fat, soluble fibers, vitamins, and minerals. It was targeted at performance horses with higher caloric needs.
DAC Colt Grower (DAC)
Amino AcidAmino Acid
FoalFoal
GrowthGrowth
YeastYeast
Colt Grower by DAC provides vitamins and minerals for young horses. A proper vitamin and mineral balance is essential for development, as well as hoof and coat quality.
Daily Amino (Enviro Equine)
Amino AcidAmino Acid
MuscleMuscle
ProteinProtein
Skin + HairSkin + Hair
Daily Amino by Enviro Equine is an essential amino acid supplement intended to support muscle development, connective tissue, the immune system, healthy hooves, and skin and coat. It is suitable for growing horses, horses in training, and those needing support for protein metabolism.
Daily Combo (Empire Research)
Competition HorsesCompetition Horses
DigestionDigestion
IngredientIngredient
YeastYeast
Daily Combo from Empire Research is an equine digestion supplement. Daily Combo is formulated with vitamins, minerals, prebiotics, probiotics and yeast. This supplement is intended to support horses' gut function.
Daily Start Probiotic (Doctor’s Choice Supplements)
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
PrebioticPrebiotic
ProbioticProbiotic
Daily Start Probiotic by Doctor's Choice Supplements is a pre/probiotic supplement intended to support gut health. It is designed for broodmares and horses that have difficulty keeping weight.
Daily Vitamins and Minerals (Dodson & Horrell)
Easy KeeperEasy Keeper
Mineral BalanceMineral Balance
NutrientsNutrients
VitaminsVitamins
Daily Vitamins and Minerals from Dodson & Horrell is intended for use in leisure and easy keeper horses and ponies. This supplement provides a complete range of vitamins and minerals to balance the horse's diet.
DailyWerks HD (HorseTech)
Hoof HealthHoof Health
JointsJoints
PerformancePerformance
Ration BalancerRation Balancer
DailyWerks HD by HorseTech is a powdered ration balancer intended to support hoof and joint health in horses in heavy work.
DailyWerks LD (HorseTech)
HealthHealth
Hoof HealthHoof Health
JointsJoints
Ration BalancerRation Balancer
DailyWerks LD by HorseTech is a daily ration balancer intended to provide hoof and joint support.
Decade Challenger – Super Bites (Poulin Grain)
Caloric EnergyCaloric Energy
GrainsGrains
MareMare
PerformancePerformance
Decade Challenger - Super Bites by Poulin Grain is a large-format pelleted feed intended for performance horses and broodmares. It provides 14% protein, 8% fat, and 10% fiber.
Decade Challenger (Poulin Grain)
Caloric EnergyCaloric Energy
GrainsGrains
MareMare
PerformancePerformance
Decade Challenger by Poulin Grain is a pelleted feed for performance horses and broodmares. It provides 14% protein, 8% fat and 10% fiber.
Decade Sprint Extreme (Poulin Grain)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Mineral BalanceMineral Balance
VitaminsVitamins
Decade Sprint Extreme by Poulin Grain is a textured feed for performance horses and broodmares. It provides 13% protein, 8% fat and 10% fiber.
Developer Ration (Hoffman’s Horse Products)
BroodmareBroodmare
FoalFoal
Grain FreeGrain Free
GrowthGrowth
Hoffman's Developer Ration is a pelleted feed for weanlings, growing horses up to two years of age, and pregnant broodmares. This feed contains 17% protein, 5.5% fat, 17.5% NSC, and provides a mix of organic and inorganic trace minerals.

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