Studies were conducted in order to evaluate the efficacy of the
orally active, synthetic progestagen, altrenogest, for assisting in the
establishment and maintenance of pregnancy in mares. In experiment
I, nine pony mares were bred, and started on altrenogest treatment
on Day 4 after ovulation. On Day 10 after ovulation,...
Urinary steroids have been studied during early and late pregnancy in
domestic horses or sporadic samples at various stages of pregnancy in wild
equidae. In our studies, urinary estrone sulfate (E1S) and pregnanediol
glucuronide (PdG) were monitored throughout pregnancy in six pony mares by
enzyme immunoassay (EIA). Both hormones were...
Aims of this research were to find the time period and specific progestins
reflective of the transition from ovarian source to placental source during early gestation
in mares. An attempt was made to describe an accurate profile of total and individual
progestins in plasma and feces from 64 to 150...