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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
Revive Senior (Bluegrass Horse Feed)
Complete FeedComplete Feed
JointsJoints
SeniorSenior
Weight IssuesWeight Issues
Revive Senior from Bluegrass Horse Feed is a feed that is meant to be highly digestible, support condition and joint health in senior horses. This feed can encourage weight gain and can be fed to horses with missing or worn teeth.
RG 14 (Hallway)
EnergyEnergy
FiberFiber
Gut HealthGut Health
ProteinProtein
RG 14 is a textured feed from Hallway, fortified with Stamm 30. This feed provides energy from digestible fibres and vegetable oil. RG 14 contains 14% protein, 6% fat, and 14% fibre.
Ride & Relax (Allen & Page)
DigestionDigestion
Easy KeeperEasy Keeper
FiberFiber
NutritionNutrition
Ride & Relax from Allen & Page is a muesli mix with added mint for palatability. Ride & Relax contains added vitamins, minerals and probiotics. Ride & Relax is free from barely and molasses.
Round-Up (Manna Pro) [Discontinued]
FiberFiber
Hay StretcherHay Stretcher
NutritionNutrition
ProteinProtein
Round-Up by Manna Pro is an alfalfa-based horse feed that contains 12% protein and 2% fat. It contains vitamins as well as organic and inorganic minerals.
Safe ‘N Easy Complete (Buckeye)
Complete FeedComplete Feed
DentalDental
GrainsGrains
NutritionNutrition
Buckeye SAFE 'N EASY™ Complete Pelleted Feed is a feed intended for horses or ponies with dental issues or horses with limited forage in their diet. It is meant to provide an easy-to-chew fiber blend with no corn or molasses.
SAFE ‘N EASY Pelleted Feed (BUCKEYE Nutrition)
Complete FeedComplete Feed
Easy KeeperEasy Keeper
FiberFiber
HindgutHindgut
Buckeye Safe 'N Easy™ Pelleted Feed is a 12.5% NSC horse feed intended for starch-sensitive horses and ponies or those that require a lower calorie diet. It is formulated with no corn or molasses.
Safe ‘N Easy Senior Extruded Feed (Buckeye)
DentalDental
NutrientsNutrients
NutritionNutrition
SeniorSenior
Safe 'N Easy Senior is an extruded feed in an easy-to-chew format for older horses and ponies with dental issues. This feed also contains prebiotics and probiotics to support gut health. This feed contains 14.5% NSC.
SAFE ‘N EASY Performance (BUCKEYE Nutrition)
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
Mineral BalanceMineral Balance
PerformancePerformance
Buckeye SAFE 'N EASY™ Performance is a pelleted horse feed that provides high energy density from fat and fibre. It has a 13.5% NSC and is corn- and molasses-free.
SAFE ‘N EASY Textured Feed (Buckeye)
Complete FeedComplete Feed
DentalDental
Gut HealthGut Health
NutrientsNutrients
Buckeye SAFE 'N EASY Textured Feed is a 16.5% NSC feed made without corn or molasses. This feed provides moderate energy density and is intended for horses requiring a low calorie diet.
Safe Performance Controlled Starch Formula (Manna Pro)
Complete FeedComplete Feed
FatFat
NutritionNutrition
PerformancePerformance
Safe Performance Controlled Starch Formula from Manna Pro is a complete feed designed for horses at all life stages. It contains 14% crude protein and 17% NSC. Safe Performance Controlled Starch Formula contains Max-E Glo® Stabilized Rice Bran as a source of fat and energy.
Safe Performance Elite High Fat (Manna Pro)
Complete FeedComplete Feed
FatFat
NutritionNutrition
PerformancePerformance
Safe Performance Elite High Fat from Manna Pro is a beet pulp-based complete feed designed for horses at all life stages. It contains 12% crude protein and 18% NSCs. Safe Performance Elite High Fat contains Max-E Glo® Stabilized Rice Bran as a source of fat and energy. This feed contains no added corn or molasses.
Safe Performance Senior (Manna Pro)
Complete FeedComplete Feed
FiberFiber
NutritionNutrition
SeniorSenior
Safe Performance Senior from Manna Pro is a pelleted feed designed for senior horses in work. It is formulated with Max-E Glo® stabilized rice bran and beet pulp. It is a corn- and molasses-free formulation that contains 14% crude protein, 7% crude fat, and 19% NSC.
Safe Performance Special Diet (Manna Pro)
Complete FeedComplete Feed
FiberFiber
HealthHealth
Metabolic SyndromeMetabolic Syndrome
Safe Performance Special Diet from Manna Pro is a pelleted feed for adult horses. It uses Max-E Glo® stabilized rice bran as a source of fat and fiber. It contains 14% crude protein, 3% crude fat, and 17% NSC. This product uses a mix of organic and inorganic trace minerals.
SafeChoice All Life Stages (Nutrena)
Gut HealthGut Health
ImmunityImmunity
Organic Trace MineralsOrganic Trace Minerals
ToplineTopline
SafeChoice All Life Stages is a pelleted feed that is meant to support skin and coat health, hoof health, and topline support. It is also supposed to assist with gut health and immunity, and contains organic trace minerals.
SafeChoice Maintenance (Nutrena)
Complete FeedComplete Feed
DigestionDigestion
FiberFiber
NutritionNutrition
Nutrena SafeChoice Maintenance is a pelleted horse feed that provides a maximum of 25% NSC (20% starch and 5% sugar). It is intended as a low-starch feed to maintain body condition.
SafeChoice Mare & Foal Pellet (Nutrena)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
SafeChoice Mare & Foal Pellet is a horse feed intended for pregnant or lactating mares, weanlings, and yearlings. It contains a maximum of 22% NSC with higher protein meant to meet the needs of growing horses.
SafeChoice Mare & Foal Textured (Nutrena)
BroodmareBroodmare
FoalFoal
GrowthGrowth
LactationLactation
Nutrena SafeChoice Mare & Foal Textured is a texturized feed intended for pregnant or lactating mares, weanlings, and yearlings. It contains a maximum of 30% NSC and 16% protein meant to meet the needs of growing horses.
SafeChoice Original (Nutrena) – [DISCONTINUED]
Complete FeedComplete Feed
Gut HealthGut Health
HealthHealth
Ration BalancerRation Balancer
Nutrena SafeChoice Original is a pelleted horse feed intended to meet the nutritional needs of a wide range of horses. It provides 22% NSC with 14% protein and 7% fat. SafeChoice Original is now SafeChoice All Stages.
SafeChoice Perform Pellet (Nutrena)
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
NutritionNutrition
SafeChoice Perform is a pelleted feed intended to meet the needs of hard keepers and performance horses. It contains 14% crude protein, 9% crude fat, and 24% NSC.
SafeChoice Perform Textured (Nutrena)
Competition HorsesCompetition Horses
EnergyEnergy
ExerciseExercise
NutritionNutrition
Nutrena SafeChoice Perform Textured is a high-fat high-calorie feed. It is intended for horses with higher energy requirements, including performance horses and hard keepers.
SafeChoice Senior (Nutrena)
Coat QualityCoat Quality
DentalDental
SeniorSenior
Weight IssuesWeight Issues
SafeChoice Senior is an easy-to-chew, high-fat, controlled starch feed intended for older horses. It is meant to support horses experiencing age-related weight loss, fatigue, or horses with muscle or coat quality issues.
SafeChoice Senior LM (Nutrena)
Coat QualityCoat Quality
DentalDental
SeniorSenior
Weight IssuesWeight Issues
SafeChoice Senior LM is a lower-molasses (LM) high-starch feed intended for senior horses, particularly horses that need to gain weight or have dental issues. It contains 14% crude protein, 8% crude fat, and 18.5% NSC.
SafeChoice Special Care (Nutrena)
Complete FeedComplete Feed
Easy KeeperEasy Keeper
Low NSC FeedsLow NSC Feeds
Metabolic SyndromeMetabolic Syndrome
SafeChoice Special Care by Nutrena is a controlled starch formula intended for horses with metabolic concerns and easy keepers. It is a corn-free feed that contains a maximum of 7% dietary starch and 3% sugar.
Security (Doctor’s Choice Supplements)
JointsJoints
PerformancePerformance
Ration BalancerRation Balancer
SeniorSenior
Security by Doctor's Choice Supplement is an organic ration balancer intended for mature and performance horses. It contains glucosamine, chondroitin, and yucca to support joint health.
Select 12-6 Pelleted Feed (Manna Pro) [Discontinued]
Caloric EnergyCaloric Energy
Complete FeedComplete Feed
HealthHealth
NutritionNutrition
Select 12-6 Pelleted Feed from Manna Pro is formulated for mature horses. It contains 12% crude protein, 6% crude fat, 20% crude fibre, and uses a mix of organic and inorganic trace minerals.
Selenium .06% (Animal Science Products)
AntioxidantAntioxidant
ImmunityImmunity
IngredientIngredient
NutrientsNutrients
Selenium .06% is a trace mineral premix containing 600 ppm of inorganic selenium, formulated for use in finished feeds. Selenium is an important antioxidant that supports metabolic function. Supplemental selenium is required in the horse's diet, particularly in areas where soil levels are low.
Senior (Equine Advantage)
FatFat
FiberFiber
GrainsGrains
SeniorSenior
Senior by Equine Advantage is a textured feed intended to provide mature horses with essential nutrients. Ingredients such as shredded beet pulp & soybean hulls increase digestibility.
Senior (Hygain)
HealthHealth
ImmunityImmunity
NutritionNutrition
SeniorSenior
Senior from Hygain is a textured feed intended for senior horses. Senior contains added glucosamine intended to support joint health. This feed also contains added amino acids intended to support muscle development.
Senior (Running Horse Elite Equine Nutrition)
DigestionDigestion
Feed EfficiencyFeed Efficiency
SeniorSenior
Weight IssuesWeight Issues
Running Horse Nutrition Senior is a highly digestible feed providing 14% protein, vegetable fat, and micro-nutrients. This feed targets older horses to help them maintain their body condition.
Senior Balancer (Buckeye)
JointsJoints
Mineral BalanceMineral Balance
SeniorSenior
VitaminsVitamins
Buckeye SENIOR BALANCER is a pelleted ration balancer for mature horses. It provides vitamins, minerals and amino acids and contains the joint supplement MSM.
Senior Combo (DuMor)
Mineral BalanceMineral Balance
Ration BalancerRation Balancer
SeniorSenior
VitaminsVitamins
Senior Combo by DuMor is a comprehensive supplement for senior horses. Senior Combo provides joint, hoof, and digestion support with additive vitamins and minerals.
Senior Combo Multi-Function Supplement (Agrimaster)
Hoof HealthHoof Health
JointsJoints
ProbioticProbiotic
Skin + HairSkin + Hair
Senior Combo Multi-Function Supplement by Agrimaster is a powdered supplement intended to support overall health in senior horses.
Senior Feed (DuMOR)
Complete FeedComplete Feed
DentalDental
NutritionNutrition
SeniorSenior
Senior Feed by DuMOR is an easy-to-chew formulation for older horses. It contains added biotin to support hooves, 14% crude protein, 4% crude fat, and 19.5% crude fibre.
Senior Formula (Bartlett Milling) [Discontinued]
Feed EfficiencyFeed Efficiency
FlavorFlavor
SeniorSenior
Weight IssuesWeight Issues
Bartlett Senior Formula is a molasses-sweetened pellet formulated for senior horses by Kentucky Equine Research. It provides 13% protein and 5% fat in an easy-to-chew pellet.
Senior GC Pelleted Feed (BUCKEYE Nutrition)-[Discontinued]
Complete FeedComplete Feed
HealthHealth
JointsJoints
SeniorSenior
Senior GC is a now-discontinued pelleted feed from Buckeye Nutrition targeted to older horses with functional teeth. Senior GC provided glucosamine, chondroitin, and MSM to support joint health.
Senior Horse (Sprout)
Amino AcidAmino Acid
NutrientsNutrients
SeniorSenior
VitaminsVitamins
Senior Horse by Sprout is a pelleted maintenance feed specially formulated for senior horses. It contains added lysine and biotin.
Senior Horse Pelleted (Agrimaster)
DigestionDigestion
HealthHealth
ImmunityImmunity
SeniorSenior
Senior Horse Pelleted by Agrimaster is a pelleted feed intended to meet the nutritional requirements of senior horses.
Senior Horse Rations (Jones Horse Feeds)
Complete FeedComplete Feed
FatFat
Gut HealthGut Health
SeniorSenior
Jones Senior Horse Pellet is a complete feed designed with a high fat content (10%) from rice bran. It also contains elevated levels of protein, vitamins and minerals to support mature horses.
Senior Needs (Excel Equine Feeds)
DigestionDigestion
ImmunityImmunity
SeniorSenior
VitaminsVitamins
Senior Needs from Excel Equine Feeds is a textured feed meant for seniors to help support digestion, immunity, and skeletal strength. It is readily digestible and contains minerals and vitamins.
Senior Pellet (Right Choice)
FatFat
FiberFiber
NutritionNutrition
SeniorSenior
Senior by Right Choice is a pelleted complete feed intended for senior horses with elevated protein. It contains 14% protein, 7% fat, and 19% NSC.
Senior Pellets (Ritchie Smith – Harmony)
HealthHealth
NutritionNutrition
SeniorSenior
Weight IssuesWeight Issues
Senior Pellets from Ritchie Smith's Harmony is a pelleted feed intended for senior horses. This feed is also intended for horses who are hard keepers. Senior Pellets contains 15% crude protein and crude fibre.
Senior Plus (Excel Equine Feeds)
FatFat
FiberFiber
SeniorSenior
Weight IssuesWeight Issues
Senior Plus from Excel Equine Feeds is a feed that helps senior horses maintain their body weight. It is high in fat and fiber to help encourage weight gain for thinner horses. It is low in starch and sugar, and is good for hard keepers.
Senior Ration (Hoffman’s Horse Products)
Complete FeedComplete Feed
Feed EfficiencyFeed Efficiency
SeniorSenior
Weight IssuesWeight Issues
Hoffman's Senior Horse Ration is a feed designed for senior horses that need extra caloric energy to maintain weight. This feed contains 17.5% NSC with moderate fat content (5%) and high fibre content (24%).
Senior Sport (Tribute)
Complete FeedComplete Feed
ExerciseExercise
FiberFiber
SeniorSenior
Tribute Senior Sport™ is a high calorie feed for mature performance horses. It provides 16.5% NSC with 10% fat and 18% fibre to support performance.
Senior Sport with Glucosamine (Tribute)
ExerciseExercise
FatFat
FiberFiber
SeniorSenior
Senior Sport with Glucosamine by Tribute is a textured feed for seniors with added glucosamine that intends to support joint health. It contains high fat and fibre to support calmer performances.
Senior Textured Feed (ProElite)
DigestionDigestion
Feed EfficiencyFeed Efficiency
PerformancePerformance
SeniorSenior
Pro Elite Senior Textured Feed is a high fat (10%) and protein (14%) senior complete feed. It is appropriate for senior horses that need help maintaining or gaining weight.
SeniorGLO (ADM Animal Nutrition)
Complete FeedComplete Feed
Feed EfficiencyFeed Efficiency
SeniorSenior
Weight IssuesWeight Issues
SeniorGLO is a concentrated feed formulated with highly digestible fiber, beet pulp, and soybean hulls. This soft pellet is designed to be easily consumed by senior horses and contains Butyric acid to support overall gut health.
Seniority Low NSC (Tribute)
Complete FeedComplete Feed
HealthHealth
Low NSC FeedsLow NSC Feeds
NutritionNutrition
Seniority Low NSC from Tribute is a complete feed containing 10% NSC (Starch + Sugar). This feed is intended for horses with sugar and starch sensitivities.
Seniority Pellet (Tribute)
Amino AcidAmino Acid
Complete FeedComplete Feed
PerformancePerformance
SeniorSenior
Seniority Pellet is a pelleted complete feed formulated for adult and senior horses. It is a low-calorie feed with a high feeding rate and can be used to replace forage in the diet.
Seniority™ Pellet (Tribute)
Complete FeedComplete Feed
HealthHealth
NutrientsNutrients
Ration BalancerRation Balancer
Tribute Seniority™ Pellet is an 18% NSC complete feed for mature horses. It provides energy from digestible fiber sources including dehulled soybean and alfalfa meal, wheat middlings, and beet pulp.

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