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Sodium Selenite - Feed Ingredient

Sodium selenite is an inorganic form of selenium, a trace mineral that is essential for various physiological functions in horses. Selenium plays a crucial role in antioxidant defense, thyroid hormone metabolism, and immune function. Sodium selenite is commonly used as a feed supplement to ensure adequate selenium intake in equine diets.

In equine nutrition, sodium selenite is often included in feed formulations and supplements to prevent selenium deficiency, which can lead to muscle disorders, impaired immune function, and reproductive issues. It is important to provide the appropriate amount of sodium selenite, as both deficiency and excess selenium can be harmful to horses. Selenium supplementation should be carefully managed to maintain optimal health and performance.

The following equine feeds, supplements and products contain Sodium Selenite as an ingredient.

Feeds, Supplements & Products
SU-PER Cell Builder Liquid (Gateway Products)
Blood CellsBlood Cells
CirculationCirculation
HealthHealth
VitaminsVitamins
SU-PER Cell Builder Liquid by Gateway Products is a supplement to support stamina, endurance, and blood cell health. It is a high-iron supplement that supports normal red blood cell production and helps promote healthy cells with high hemoglobin content.
SU-PER E-Se Liquid (Gateway Products)
AntioxidantAntioxidant
ImmunityImmunity
Mineral BalanceMineral Balance
VitaminsVitamins
SU-PER E-Se Liquid by Gateway Products is a liquid supplement that supports immune function, muscle function, and optimal recovery. Vitamin E and selenium are good antioxidants to aid in the recovery of sore muscles.
SU-PER Form Pellets (Gateway Products)
HealthHealth
Mineral BalanceMineral Balance
ProbioticProbiotic
VitaminsVitamins
SU-PER Form Pellets by Gateway Products is a vitamin and mineral supplement that provides all the necessary nutrients. This supplement also includes additional amino acids and electrolytes and is meant for horses of all life stages.
SU-PER Oxy-Up Powder (Gateway Products)
EnergyEnergy
Omega 3-6-9Omega 3-6-9
PerformancePerformance
YeastYeast
SU-PER Oxy-Up Powder by Gateway Products is a supplement to support stamina and endurance. This supplement contains octacosanol, which supports the muscles' ability to use oxygen more efficiently and slow the exhaust of the horses' oxygen reserve.
SU-PER Show Coat Powder (Gateway Products)
Coat QualityCoat Quality
Mineral BalanceMineral Balance
Skin + HairSkin + Hair
VitaminsVitamins
SU-PER Show Coat Powder is a supplement that supports a healthy coat and skin. This supplement contains flaxseed meal as a source of essential fatty acids and additional vitamins and minerals for better nutrient absorption.
SU-PER StressEx Powder (Gateway Products)
CalmingCalming
ElectrolyteElectrolyte
RecoveryRecovery
StressStress
SU-PER StressEx Powder by Gateway Products is a supplement containing electrolytes that helps maintain a horse's normal body fluid levels. This supplement aids in supporting normal nerve and muscle function and helps prevent dehydration.
Summer Heat (Woody’s Horse Nutrition)
Competition HorsesCompetition Horses
DigestionDigestion
FiberFiber
PerformancePerformance
Woody’s Summer Heat is a complete feed formulated for performance horses in heavy to intense work. It contains 12.5% protein and 7.0% fat, and is made with oats, barley, molasses and beet pulp.
Sunshine Plus Pelleted Horse Feed (Blue Seal)
Complete FeedComplete Feed
ProteinProtein
VitaminsVitamins
YeastYeast
Sunshine Plus is a high protein (30%) pelleted feed containing soybean meal and whey. Energy sources include cane molasses, wheat middlings, oil, and corn distillers grains.
Super 16 (Hallway)
BroodmareBroodmare
GrowthGrowth
LactationLactation
NutritionNutrition
Super 16 is a textured sweet feed fortified with Stamm 30 formulated for growing horses and broodmares in peak lactation. This feed uses whole and rolled grains with molasses as energy sources. Super 16 contains 16% protein, 3.5% fat, and 9% fibre.
Super Horse 12-12 (Manna Pro)
BroodmareBroodmare
Complete FeedComplete Feed
NutritionNutrition
PerformancePerformance
Super Horse 12-12 from Manna Pro is a textured sweet feed formulated for performance horses, broodmares, and stallions. Super Horse 12-12 contains 12% crude protein, 6% crude fat, and 7% crude fiber.
Super Horse Manna Senior (Manna Pro)
DentalDental
NutritionNutrition
SeniorSenior
Weight IssuesWeight Issues
Super Horse Manna Senior from Manna Pro is a beet pulp-based feed designed for senior horses. It contains 12.5% crude protein, 4% crude fat, 18% dietary starch, 7% sugars, and a mix of organic and inorganic trace minerals.
Super Horse Performance 10 (Manna Pro)
ExerciseExercise
GrainsGrains
NutritionNutrition
PerformancePerformance
Super Horse Performance 10 from Manna Pro is available as a pellet or a textured feed. Super Horse Performance 10 contains 10% crude protein, 6% crude fat, 7% crude fibre, and uses a mix of organic and inorganic trace minerals.
Super Staminoats (Hallway)
BroodmareBroodmare
GrowthGrowth
LactationLactation
NutritionNutrition
Super Staminoats from Hallway is a cubed feed fortified with Stamm 30, formulated for gestating or lactating broodmares, and young growing horses. This feed contains 16% protein, 3% fat, and 9.5% fibre.
Superforce (Cavalor)
Complete FeedComplete Feed
Competition HorsesCompetition Horses
EnergyEnergy
PerformancePerformance
Cavalor Superforce is a high-calorie textured feed intended for performance horses during competition. It provides energy from high NSC (sugar and starch) sources including oats and cane molasses.
SuperSport Amino Acid Supplement (Purina)
Amino AcidAmino Acid
PerformancePerformance
RecoveryRecovery
ToplineTopline
Purina® SuperSport® Amino Acid is a supplement intended for performance equine athletes. It provides 40% crude protein in a pelleted format to support muscle development.
Support One (Pureform)
AntioxidantAntioxidant
JointsJoints
Mineral BalanceMineral Balance
VitaminsVitamins
Pureform Support One is an equine supplement formulated to support joint, bone, and immune health. It contains Glucosamine, MSM, amino acids, complete vitamins, trace minerals, and anti-oxidants.
SUPREME™ 10 Pelleted Feed (BUCKEYE Nutrition)-[Discontinued]
Complete FeedComplete Feed
Gut HealthGut Health
HealthHealth
Ration BalancerRation Balancer
SUPREME™ 10 Pelleted Feed is a now-discontinued feed that provided 10% crude protein in a fortified grain mix. It was formulated to support the nutritional needs of mature horses.
SUPREME™ 14 Pelleted Feed (BUCKEYE Nutrition)
Complete FeedComplete Feed
Gut HealthGut Health
NutritionNutrition
Ration BalancerRation Balancer
SUPREME 14 Pelleted Feed by Buckeye Nutrition is a complete feed with 14% crude protein. It is formulated to support the nutritional needs of mature horses in light to moderate work, seniors, and the breeding herd. SUPREME 14 contains a total of 28% NSC.
Sweet ‘N Safe (Daily Dose Equine)
Caloric EnergyCaloric Energy
FatFat
FlavorFlavor
GrainsGrains
Sweet 'N Safe by Daily Dose Equine is a textured feed for the average horse needing a higher caloric intake. It contains energy sources such as roasted whole oats, roasted whole barley, and roasted whole soybeans.
Sweet 10 (Excel Equine Feeds)
Easy KeeperEasy Keeper
EnergyEnergy
HealthHealth
NutritionNutrition
Sweet 10 is a textured feed from Excel Equine Feeds. This feed is intended for easy keepers or horses in light work.
Sweet 12% Textured (Agrimaster)
Gut HealthGut Health
Hoof HealthHoof Health
MuscleMuscle
Skin + HairSkin + Hair
Sweet 12% Textured by Agrimaster is a textured feed intended to support health and performance of all horse types.
Sweet Feed (Ritchie Smith – Harmony)
Competition HorsesCompetition Horses
DigestionDigestion
FiberFiber
NutrientsNutrients
Sweet Feed from Ritchie Smith's Harmony is a textured horse feed intended for horses in moderate to heavy work. Sweet Feed contains 12% crude protein and 4% fat.
Synergize (Tribute)
FatFat
Gut HealthGut Health
Low NSC FeedsLow NSC Feeds
PerformancePerformance
Synergize by Tribute is a pelleted feed intended for hard-keepers and horses with a heavy workload that are sensitive to sugar and starch.
TAB (Hallway)
Mineral BalanceMineral Balance
NutritionNutrition
ProteinProtein
VitaminsVitamins
Hallway Feed's TAB is a concentrated pelleted feed intended to balance the diet of horses fed alfalfa hay. It can be fed to horses at all life stages and has a lower feeding rate.
TDI 12% (TDI Horse Feeds)
Easy KeeperEasy Keeper
EnergyEnergy
HealthHealth
NutritionNutrition
TDI 12% from TDI Horse Feeds is an oat based, pelleted feed. TDI 12% is intended for adult horses in light to moderate work. This feed contains added vitamins, minerals, and yeast.
TDI-10 Supplement (Ace Hi Feeds)
BroodmareBroodmare
Easy KeeperEasy Keeper
NutritionNutrition
Ration BalancerRation Balancer
TDI-10 by Ace Hi Feeds is a soy-free feed intended for pregnant mares or easy keepers. It contains at least 10% crude protein and added vitamins and minerals. This feed is meant to be fed alongside a forage.
Teff Natural (Equis Feed)
FiberFiber
ForageForage
Mineral BalanceMineral Balance
VitaminsVitamins
Equis® Teff Natural is a horse feed made with teff grass hay that has a low sugar content. It contains canola meal, DDGS, beet pulp, soybean hulls, and added vitamins and minerals.
Textured Ration (Hoffman’s Horse Products)
Caloric EnergyCaloric Energy
DigestionDigestion
HealthHealth
NutritionNutrition
Textured Ration from Hoffman's is a textured feed for horses over 1 year of age. This feed is intended to increase fat absorption and digestion in horses. Hoffman's Textured Ration is 27.5% NSC.
Thorough-Bread (Sacate Pellet Mills)
FiberFiber
NutrientsNutrients
PerformancePerformance
ProteinProtein
Thorough-Bread from Sacate Pellet Mills is a pelleted feed meant for moderate to heavy working horses or nursing mares.
Topline Advantage (ProElite)
DigestionDigestion
NutritionNutrition
ProteinProtein
ToplineTopline
ProElite Topline Advantage is a pelleted horse supplement that provides essential nutrients and amino acids for muscle development. It contains 50% crude protein.
Total Equine Essentials (Total Feeds)
CirculationCirculation
Low NSC FeedsLow NSC Feeds
Mineral BalanceMineral Balance
VitaminsVitamins
Total Equine Essentials is a complete extruded ration balancer intended for horses of all classes and activity levels. It has a low feeding rate and is designed to help to keep the NSC content of the diet low.
Total Plus Original (Arnall’s Naturals)
HealthHealth
ImmunityImmunity
NutritionNutrition
PerformancePerformance
Total Plus from Arnall's Naturals is a powdered 'all-in-one' supplement. This supplement is intended to support overall equine health and well-being.
Total Supplement (Total Supplements)
ImmunityImmunity
Mineral BalanceMineral Balance
RecoveryRecovery
VitaminsVitamins
Total Supplement is a horse supplement that contains vitamins, minerals, amino acids, and probiotics. It can assist with joint support, immunity and muscle recovery.
Tough as Nails (Tribute)
Hoof HealthHoof Health
Mineral BalanceMineral Balance
Organic Trace MineralsOrganic Trace Minerals
VitaminsVitamins
Tribute Tough As Nails is a pelleted horse supplement formulated to support hoof growth. It contains biotin, calcium, iodine, organic minerals and the amino acid methionine.
Tough To Beet® (Tribute Equine)
EnergyEnergy
FatFat
FiberFiber
PerformancePerformance
Tough To Beet® is a high-fat textured feed formulated with shredded beet pulp, grains and soybean oil. This feed targets mature horses in training to meet their calorie needs.
Track Burner (Quality Feeds)
Competition HorsesCompetition Horses
EnergyEnergy
NutrientsNutrients
PerformancePerformance
Track Burner by Quality feeds is a textured sweet feed containing vitamins and minerals. It is intended to meet the high energy demands of racehorses.
Tracktorque (Hygain)
DigestionDigestion
EnergyEnergy
Gut HealthGut Health
Skin + HairSkin + Hair
Tracktorque by Hygain is a high-energy feed meant for high performance horses including racing, training, and intense competition. It contains vitamins, minerals, prebiotics, probiotics and is intended to assist with gut health, digestion, coat health, muscle and heart health.
Tradition 12 (Hallway)
BroodmareBroodmare
Complete FeedComplete Feed
Competition HorsesCompetition Horses
NutritionNutrition
Tradition 12 from Hallway is a fortified feed cube formulated for broodmares, stallions, and performance horses. This feed contains 12% protein, 4% fat, and 9% fibre
Tradition Mix (Cavalor)
DigestionDigestion
HealthHealth
NutrientsNutrients
NutritionNutrition
Tradition Mix by Cavalor is a textured feed intended for horses at maintenance or light work.
Trail Mate Sweet Formula (Bartlett Milling) [Discontinued]
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
FlavorFlavor
Trail Mate Sweet Formula is a grain-based feed intended for western, pleasure and trail horses in moderate to rigorous work. It contains 13% protein, 4% fat and 11% fibre from sources such as wheat middlings, corn, oats and barley.
Trail Mix (Running Horse Elite Equine Nutrition)
Complete FeedComplete Feed
FiberFiber
HealthHealth
Mineral BalanceMineral Balance
Running Horse Trail Mix is a concentrated feed containing high fiber, vitamins, minerals, and 12% protein. This feed targets adult horses that are inactive or performing light work.
Tribute Ultra (Tribute)
ExerciseExercise
FatFat
NutrientsNutrients
Weight IssuesWeight Issues
Tribute Ultra is intended for hard keepers and horses and ponies in heavy work. This feed is meant to support weight gain and performance with its 12% fat and 12% protein formula.
Trifecta (Buckeye) – [Discontinued]
Complete FeedComplete Feed
FlavorFlavor
NutritionNutrition
PerformancePerformance
Buckeye TRIFECTA™ Sweet Pelleted Feed is a palatable and calorie-dense feed containing cane molasses to increase intake. TRIFECTA™ is intended for performance horses with higher energy demands.
Trifiber Compete (Excel Equine Feeds)
Caloric EnergyCaloric Energy
Low NSC FeedsLow NSC Feeds
PerformancePerformance
Weight IssuesWeight Issues
Trifiber Compete from Excel Equine Feeds is meant for performance horses and has a low NSC content. It is a safe source of calories with fat and fiber. It is made to be beneficial to horses prone to metabolic conditions and horses with weight issues.
Triplify (Excel Equine Feeds)
Competition HorsesCompetition Horses
HealthHealth
NutritionNutrition
PerformancePerformance
Triplify is a textured feed from Excel Equine Feeds. Triplify is intended for horses in moderate to heavy work, and contains 10% protein and 10% fat.
Triumph 12-8 Horse Feed (Nutrena)
MareMare
Mineral BalanceMineral Balance
PerformancePerformance
VitaminsVitamins
Triumph 12-8 Horse Feed by Nutrena is a feed that is intended for mares, breeding horses, maintenance, and performance horses. It has 12% protein, 12% fiber, and 8% fat.
Triumph Active 12 Pellet (Nutrena)
HealthHealth
MuscleMuscle
NutritionNutrition
RecoveryRecovery
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.
Triumph Complete (Nutrena)
Complete FeedComplete Feed
EnergyEnergy
NutritionNutrition
ProteinProtein
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.
Triumph Fiber Plus (Nutrena)
DigestionDigestion
EnergyEnergy
FiberFiber
NutritionNutrition
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.
Triumph Professional (Nutrena)
Complete FeedComplete Feed
EnergyEnergy
NutritionNutrition
ProteinProtein
Triumph Professional is a pelleted complete feed formulated for a variety of life stages. It provides 14% protein, 8% fat and 17% NSC.

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