Expulsion of the Fetal Membranes.

Expulsion of the Fetal Membranes.
Stage 3 of parturition: delivery of the fetal membranes. They are normally delivered within 3 to 6 hours. Mares should be treated within 12 to 24 hours to avoid septicemia, toxemia, and possible postparturient laminitis.

Utrecht (1976)