I also got the results for Finn's vitamin E/Selenium testing back. I have him on a vitamin e/selenium supplement but because he tested high on selenium and on the low end of normal on vit e it looks like I'll have to take him off of it and switch him to a better vitamin e supplement. Vet recommended Elevate, but the only place I've found that carries it is Dover, and it's not in Smartpaks.
Vitamin E: 269 ug/dL
Comments: The reference ranges for serum vitamin E in horses vary with age. The following values are based on data in, Vitamin Levels in Animal Health, published in 1994 by Puls.
Neonatal foal: 180 to 200 ug/dL
10 day to 1 month old foal: 120 to 800 ug/dL
1 month to 2 years old: 150 to 1000 ug/dL
Mature horse: 200 to 1000 ug/dL
Vitamin E is not stable and some sample characteristics and handling procedures may decrease the concentration of vitamin E present in serum samples. Factors that may affect vitamin E levels in a serum sample include hemolysis, contact with rubber stoppers, repeated freezing and thawing and exposure to light.
The NRC recommends that equine diets contain 80 to 100 IU vitamin E per kg of dry matter. Vitamin E is very safe to supplement and
vitamin E toxicosis has not been reported in livestock.
Blood, Whole, Edta
Selenium, whole blood Quantity: 26.31 ug/dL Comments: The reference values for blood selenium in horses, based on Stowe (1998) are:
1-9 days: 9.80 to 13.5 ug/dL
10-30 days: 11.2 to 15.0 ug/dL
1 mo-1 year:12.6 to 16.5 ug/dL
Greater than 1 year:14.0 to 24.0 ug/dL
Blood selenium concentrations less than 6.0 ug/dL have been associated with white muscle disease in neonatal livestock. signs of selenium toxicosis are reported with blood selenium concentrations above 110 ug/dL (Puls, 1994).
Vitamin E Alcohol, in serum This analysis was developed to determine the vitamin E (as alpha-tocopherol) concentration in serum samples. Analysis of an inappropriate sample, such as serum collected or stored in gel clot tubes, or plasma instead of serum, could affect the accuracy of the test result .
Report Date: 5/29/2013 9:07:57AM