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Menadione Dimethylpyrimidinol Bisulfite (Source of Vitamin K) - Feed Ingredient

Menadione Dimethylpyrimidinol Bisulfite (MDPB) is a synthetic, water-soluble derivative of Vitamin K3 used in animal feed formulations as a source of vitamin K. It combines menadione with dimethylpyrimidinol and is stabilized with a bisulfite group, improving its solubility and shelf stability in feed products.

In equine nutrition, MDPB is included in vitamin premixes or fortified feeds to support the synthesis of clotting factors, as vitamin K is essential for normal blood coagulation. However, horses consuming fresh forage typically do not require supplemental vitamin K, as green plants naturally contain ample amounts of phylloquinone (vitamin K1), and healthy hindgut microbes can synthesize vitamin K2.

The following equine feeds, supplements and products contain Menadione Dimethylpyrimidinol Bisulfite (Source of Vitamin K) as an ingredient.

Feeds, Supplements & Products
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.
EquiZyme (Bio-Nutrition Laboratories)
HealthHealth
Mineral BalanceMineral Balance
PrebioticPrebiotic
VitaminsVitamins
EquiZyme from Bio-Nutrition Laboratories is a vitamin-mineral supplement. This supplement contains added manno-oligosaccharides, selenium and yeast cultures intended for horses in various performance levels.
Foal Balancer Milk Pellets (Seminole)
FoalFoal
GrowthGrowth
ProbioticProbiotic
YeastYeast
Seminole Foal Balancer Milk Pellets is a milk replacer and creep feed intended for nursing and orphan foals. It can also be fed to lactating mares and performance horses. This feed contains probiotic and yeast culture.
Golden Gro (Equine Excellence Enterprises)
Coat QualityCoat Quality
Hoof HealthHoof Health
MuscleMuscle
ProteinProtein
Golden Gro by Equine Excellence Enterprises is a protein supplement intended to assist with muscle, coat and hoof health. It contains 30% crude protein and 18% fat.
Magic Mineral (Farrier’s Magic)
Coat QualityCoat Quality
Hoof HealthHoof Health
Mineral BalanceMineral Balance
VitaminsVitamins
Magic Mineral is a supplement intended for equines of all ages. The supplement helps support healthy hooves and coats.
Prove PRO:formance (Farrier’s Magic)
Caloric EnergyCaloric Energy
FiberFiber
GrainsGrains
NutritionNutrition
Prove PRO:formance is a complete grain ration intended to help provide horses, of all ages and levels of work, with all the needed nutrients that they might not have if only fed pasture or hay.

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