Selenium and Manganese in Hay Source from Pennsylvania?


My ponies are on dry lot. Our hay primarily comes from Pennsylvania. Does anyone know if Selenium and Manganese are high or low and if we need to supplement or not?

My most recent hay analysis doesn't report on selenium. For manganese it states, "as sampled - 43g per pound and dry matter - 47g per pound". I don't know how to interpret if that is a lot or is lacking. Thank you in advance for your guidance.

Thank you,

Aiken, SC 2022

Eleanor Kellon, VMD

Do you mean mg instead of g? Selenium is generally marginal to low.
Eleanor in PA  BOGO 2 for 1 Course Sale Through End of January
EC Owner 2001
The first step to wisdom is "I don't know."