How much selenium do horses need daily?

The FDA has set a daily recommended level of selenium for an “average” horse at a total of 3 mg per day. Many different types of feeds and supplements contain selenium. Take the time to read the labels and calculate how much, if any, selenium is contributing to your horse’s diet.

Can horses have too much selenium?

Too Much Selenium

Horses may become poisoned from eating forage growing in high selenium soil or by drinking water with high levels of selenium. Most poisoning occurs in the spring and summer months when horses may be tempted to eat lush growths of weeds. Toxicity can be sudden and ‘acute’, or it can be chronic.

How much selenium is toxic for horses?

The upper safe total intake of selenium per day, based on the most recent National Research Council publication Nutrient Requirements of Horses, is 20 mg for an average 1,000-pound horse.

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How do you know if your horse needs selenium?

SYMPTOMS OF SELENIUM DEFICIENCY

  1. Stiff gait.
  2. Sore, painful muscles.
  3. Poor performance.
  4. Muscle spasms and/or trembling.
  5. Tying up (nutritional myopathy/rhabdomyolysis)

5.08.2019

How do you feed a horse selenium?

The selenium in your horse’s diet can come from multiple sources, such as pasture, hay, grain, or commercial feeds and supplements. The level of selenium in hay and grass varies greatly, depending on the area in which it was grown. Testing your hay and pasture is not hard to do and is beneficial on multiple levels.

What are signs of selenium toxicity in horses?

The chronic signs of selenium toxicity are characterized by hair loss of the mane and tail, cracking of the hooves, and often signs of lameness, excess salivation, and respiratory failure.

What are the symptoms of selenium deficiency in horses?

Deficiency in selenium can cause a variety of symptoms in horses, including myopathy (muscle disease), impaired movement, difficulty in suckling and swallowing, respiratory distress and impaired heart function.

What is the best selenium supplement for horses?

Three forms of selenium are used in feeds and supplements: inorganic sodium selenite, inorganic sodium selenate, and organic selenium yeast. The yeast form has been found to be more bioavailable than the inorganic forms, more readily raising horses’ serum selenium levels.

How do you know if your horse needs magnesium?

Signs that your horse may be magnesium deficient

  • Very tight, sore back not related to activity, fitness level or saddle fit.
  • Horse never really relaxes.
  • Cranky about being brushed or palpated especially over the back on either side of the spine.
  • Cranky about being blanketed.
  • History of tying up.
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What is selenium used for in horses?

What It Is & Who It’s For: Selenium is a trace mineral that plays critical roles in the horse’s antioxidant defense system, immune response, and thyroid function. Selenium deficiency has been reported in 46 states as low levels in the soil can lead to low levels in grass and hay.

What are the symptoms of selenium deficiency?

What are the symptoms?

  • infertility in men and women.
  • muscle weakness.
  • fatigue.
  • mental fog.
  • hair loss.
  • weakened immune system.

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Is there selenium in hay?

For example: 1.6 ppm selenium x 9 kg hay = 14.4 mg of selenium per day provided from the hay. The feed adds a small amount of selenium, about 0.3 mg. … The maximum tolerable levels for selenium is 2 mg/kg of diet, or about 20 mg for an 1,100-lb (500-kg) horse consuming 2% of its body weight in feed.

What is vitamin E and selenium good for in horses?

Platinum Antioxidant formula contains Vitamin E, Vitamin C and Selenium. These antioxidants work together and may help support cells, tissues, and organs when confronting the effects of free radicals that are formed during normal metabolic processes and exercise in horses.

Can a horse have too much vitamin E?

There are no studies describing toxicity in horses from too much supplementation. Vitamin E can be toxic because it is stored in fat (lipid) and is not excreted like water soluble vitamins are.

Levels of vitamin E.

Vitamin E levels in serum
Adequate 1.5-2.4 µg/ml
Deficient less than 1.5 µg/ml

Can horses have selenium blocks?

Selenium is an essential antioxidant that horses require in their diet. … If your horse eats hay grown in Wisconsin, does not get much grazing in the pasture, and does not regularly get daily grain or mineral supplements, offering a mineral block that contains selenium is a good idea.

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What are the benefits of taking selenium?

Selenium plays an important role in the health of your immune system. This antioxidant helps lower oxidative stress in your body, which reduces inflammation and enhances immunity. Studies have demonstrated that increased blood levels of selenium are associated with enhanced immune response.

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