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Protein Sources for Horses

View nutrition analyses for protein sources used in horse feed ingredients in the Mad Barn Equine Feed Database. This category includes high-protein ingredients that contribute amino acids to the equine diet, such as soybean meal, canola meal, alfalfa meal, flaxseed meal, peas, lupins, distillers dried grains, whey protein, yeast products, and other plant- or animal-derived protein sources.

Compare nutrient profiles for different protein sources to understand their crude protein content, amino acid contribution, digestibility, fiber level, fat content, mineral values, and role in supporting muscle development, topline, growth, lactation, and tissue maintenance. Use this database to evaluate protein-containing ingredients used in horse feeds and supplements.

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Protein
Sunflower Seeds (Modesto Milling)
Caloric EnergyCaloric Energy
FiberFiber
GrainsGrains
Omega 3-6-9Omega 3-6-9
Modesto's sunflower seeds are an excellent source of protein, fat, and fibre. Whole sunflower seeds may benefit from grinding to increase digestibility. Sunflower seeds may be added to feed or given as treats.
TRITURO 46 Soybean Meal (Soya Excel)
ExerciseExercise
GrowthGrowth
MuscleMuscle
ProteinProtein
Trituro 46 is an organic, mechanically produced form of soybean meal. At 46% protein content, it is a rich amino acid source for growing, lactating, or performance horses.
Wet Distilled Corn
EnergyEnergy
FatFat
NutritionNutrition
ProteinProtein
Wet distilled corn is a byproduct of ethanol production. It is a high-protein feed more commonly fed to cattle than horses. Mould contamination is a concern with high-moisture byproducts of ethanol production.
Wheat Distillers
EnergyEnergy
FiberFiber
GrainsGrains
NutritionNutrition
Wheat distillers grain is a byproduct of alcohol distillation from wheat to manufacture products such as vodka, gin and whisky. Distillers grain is commonly used as an energy and protein source in food animal rations.
Wheat Germ
EnergyEnergy
IngredientIngredient
NutrientsNutrients
ProteinProtein
Wheat germ is the nutrient-rich inner portion of the wheat kernel. It provides fat, protein, fiber, and natural vitamin E.
Wheat Germ Meal
AntioxidantAntioxidant
NutrientsNutrients
ProteinProtein
VitaminsVitamins
Wheat germ meal is added to equine feeds as a palatable protein source. It is a high-phosphorus, low-calcium ingredient which must be balanced to bring the calcium-phosphorus ratio of the diet into an appropriate range.
Wheat Middling Brazil Coarse
Caloric EnergyCaloric Energy
FiberFiber
GrainsGrains
ProteinProtein
Wheat middlings are a byproduct of wheat flour production consisting of wheat bran, shorts, germ and flour. It is a palatable, high-energy feed for cattle and horses.
Wheat Middling Brazil Finely Ground
Caloric EnergyCaloric Energy
GrainsGrains
ProteinProtein
Weight IssuesWeight Issues
Wheat middlings are a byproduct of wheat flour production. Fine ground wheat middlings are a palatable feed stuff commonly added to cattle and equine feeds.
Whey – Condensed
Amino AcidAmino Acid
GrowthGrowth
MuscleMuscle
ProteinProtein
Condensed whey is a byproduct of cheese making, which involves removing the moisture content of the whey by evaporation. Condensed whey is a high-quality protein source used to support muscle and topline development.
Whey – Delactosed
Amino AcidAmino Acid
GrowthGrowth
MuscleMuscle
ProteinProtein
Delactosed whey has undergone processing to remove its lactose content. Whey is the liquid that remains after processing the milk into cheese. It is a complete protein source providing all essential amino acids.
Whey Protein Concentrate 34%
Amino AcidAmino Acid
MuscleMuscle
ProteinProtein
RecoveryRecovery
Whey protein concentrate 34% is a more concentrated form of whey, made by removing non-protein constituents. It is used as an equine protein supplement to support muscle growth and topline development.
Whey Protein Concentrate 80%
Amino AcidAmino Acid
MuscleMuscle
ProteinProtein
RecoveryRecovery
Whey protein concentrate (WPC) is made by removing non-protein constituents from pasteurized whey to produce a dry powder with 80% protein content. It is a highly concentrated source of amino acids.
Whiskey – Distiller’s Syrup
Caloric EnergyCaloric Energy
FatFat
NutrientsNutrients
ProteinProtein
Whiskey distiller's syrup is a byproduct of whiskey alcohol production. The syrup is a high protein, high-calorie feed commonly given to livestock raised near whiskey distilleries. Mineral imbalances can occur if fed in high quantities.
Whiskey – Ethanol Syrup
EnergyEnergy
IngredientIngredient
NutrientsNutrients
Weight IssuesWeight Issues
Whiskey ethanol syrup is a byproduct of ethanol fuel production. The syrup is a high-calorie, high-protein feed given to livestock.
Yeast – Torula
Feed EfficiencyFeed Efficiency
Gut HealthGut Health
ImmunityImmunity
YeastYeast
Torula is a yeast strain that grows on wood and is a by-product of pulp milling industries. It is a dead yeast culture that is included in equine diets as a protein source.
Yeast Extract
DigestionDigestion
FlavorFlavor
IngredientIngredient
NutrientsNutrients
Yeast extract is a concentrated ingredient made from yeast that provides flavor compounds, peptides, and nutrients.
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