Title: Describe the influences of hormone secretions in the estrous cycle.
Course: Equine Science, Advanced (18104-II) > Section: Understanding Equine Reproduction

Description should include the influences of the following on the estrous cycle:

- Gonadotrophin-releasing hormone (GnRH)
- Oxytocin
- Relaxin
- Prostaglandin
- Progesterone
- Estrogen
- Prolactin
- Luteinizing hormone (LH)
- Follicle-stimulating hormone (FSH)
- Human chorionic gonadotropin (hCG)

Teacher Resource:

- Breeding Soundness Examination of the Stallion, Merck Manual Veterinary Manual

Process/Skill Questions:

- What is the role of the hormone progesterone in the mare?
- What hormone stimulates milk production?
- Where are reproductive hormones, such as estrogen, progesterone, and luteinizing hormone released from in the horse’s body?
- Why is hCG used in mares?