PMSG (Pregnant Mare Serum Gonadotropin), also known as equine chorionic gonadotropin (eCG), is a hormone extracted from the blood of pregnant mares and used in veterinary medicine to stimulate reproductive cycles in other animals. It functions as both a follicle-stimulating (FSH-like) and luteinizing (LH-like) hormone, making it useful for inducing estrus (heat), synchronizing ovulation, and improving fertility in livestock like pigs, cattle, and goats.

Active ingredients

Each freeze-dried plug contains: Serum gonadotrophin 5000 iu (equivalent to 200 iu/ml once diluted).

Target species

Cattle, pigs, sheep and dogs

Indications for use

PMSG is capable of supplementing and being substituted for both luteinising hormone and follicle stimulating gonadotrophin of the anterior pituitary gland in both the male and female, stimulating development of the ovarian follicle.

Withdrawal periods

• Cattle – milk 0 hours, meat 0 days (see note below)
• Sheep – meat 0 days
• Pig – 0 days

Withdrawal notes: When used for superovulation in cattle with prostaglandin – milk 48 hours after 2nd prostaglandin; meat 28 days