Hormones to help with pregnant mares?

Answer 1

The primary hormone used to maintain pregnancy in older mares is progesterone or the synthetic version of it, regumate/altrenogest.

This product is used to great effect in preventing EOD (early embryonic death)and a subsequent return to heat due to prostiglandin release due to illness,

injury, inflammation etc. especially when pregnancy is being maintained by the

primary CL alone.

Can be used with anti-inflammitory drugs during transport or when injections that may cause inflammation are required for mares that have to be moved

during the early stages of pregnancy.

Can be used in late stage pregnancy in conjunction with antibiotic therapy for

mares with certain types of low grade infections to insure the foal reaches full

term although foal may be dismature, premature septic at birth.

Some farms have mares on progesterone therapy as a safeguard.

Oxytocin, Prostiglandins can be used to help with the foaling process, milk let

down etc.