The vitamin A requirement of adult horses at maintenance is 30 IU/kg (1 kg equals 2.2 pounds) of body weight. For growing and exercising horses, it is 45 IU/kg of body weight. A 500-kg (1,100-pounds) horse would therefore need 15,000 IU of vitamin A per day at rest and 22,500 IU per day when working.
How much vitamin A is too much for a horse?
This means a 1,100-pound horse needs 15,000 to 30,000 IU of vitamin A per day. The upper safe limit for long-term consumption is 16,000 IU/kg of diet, or about 160,000 IU/day for a horse eating 10 kg (22 lbs.) of food per day.
How do you give a horse vitamin A?
Fresh green grass is the best source of vitamin A, as beta-carotene is found in abundance. It has been found that horses maintained on actively growing pastures can meet their vitamin A requirement, solely from fresh forage.
How much vitamin A is needed?
The recommended daily amount of vitamin A is 900 micrograms (mcg) for adult men and 700 mcg for adult women.
Is vitamin A good for horses?
Vitamin A is important in equine diets because of its powerful antioxidant action. This vitamin also supports vision, reproductive functions, and the equine immune system.
Is 16000 IU of Vitamin A too much?
The tolerable upper limit (UL) of Vitamin A for adults is 3,000 micrograms RAE, (10,000 IUs retinol, 20,000 IUs of beta carotene from supplements, or 60,000 IUs beta carotene from food) which will not typically be exceeded by common multivitamins.
How much vitamin D does a horse need?
Horses do best when they receive at least 6.6 IU of vitamin D per kilogram of body weight. For an 1100 pound (500 kilogram) horse, this translates into 3300 IU/day. Sunlight exposure — five to eight hours per day under optimal conditions — will produce this amount of vitamin D.
What vitamins can horses not produce?
What we refer to as vitamin B is actually a complex of several substances including niacin, thiamine, biotin, cobalamine, folacin, riboflavin, and pantothenic acid. Because vitamin B is one of the water-soluble vitamins, extra supplies do not build up in the horse’s body.
Do horses need vitamin B12?
Vitamin B12 is the only B vitamin not produced in plants, and therefore the horse must rely on the supply from the hindgut bacteria. Why feed it? … Horses on high grain, low forage diets, or those on very poor quality forage. Horses in high stress situations or during extreme exertion (endurance, traveling, racing)
Is it OK to take vitamin A everyday?
When taken by mouth: Vitamin A is LIKELY SAFE for most people in amounts less than 10,000 units (3,000 mcg) daily. Keep in mind that vitamin A is available in two different forms: pre-formed vitamin A and provitamin A. The maximum daily dose of 10,000 units per day relates to only pre-formed vitamin A.
Should you take vitamin A everyday?
You should be able to get all the vitamin A you need from your diet. Any vitamin A your body does not need immediately is stored for future use. This means you do not need it every day.
What supplements do horses really need?
Common B vitamins supplemented to performance horses include biotin, vitamin B12 and folic acid. Common minerals supplemented to performance horses include calcium, phosphorus, sodium, chloride, copper and zinc. Care should be taken when supplementing vitamin A or D and the minerals selenium and iodine.
What does zinc do for horses?
Zinc (Zn) is an essential trace mineral that is required in the horse’s diet to support the proper function of many enzymes and proteins. It is involved in antioxidant protection, immune function, protein synthesis, and cellular communication.
How does turmeric help horses?
Perhaps the most important and relevant benefit of turmeric for horse owners is its incredible anti-inflammatory effects, which is excellent news for joint health in horses—turmeric is able to reduce inflammation and the associated pain substantially when added to your horse’s diet.