09/30/2026
CIDRs (progesterone implants), shown here, go into all of the ewes tomorrow for which artificial insemination (the *REAL* AI) is planned (on Oct 16). This helps synchronize them so that they all ovulate at the same time. Ewes will also get a shot tomorrow of Vitamin A/D/E and one of BoSe (a vitamin E/selenium mix), along with a shot of GNRH (gonadotropin-releasing hormone). Later on they’ll get a shot of estrumate (to regress any corpus luteum that may present that could be inhibiting ovulation), then another shot of GNRH and one of PMSG (pregnant mare serum gonadotropin), which triggers follicle growth and ovulation when given to animals other than horses.
Yes, it’s complicated. This is exactly why I work with a specialized repro vet for AI in my ewes. Not to mention the fact that AI in ewes is substantially more complex than AI in cattle or goats. Thanks (no thanks!) to the structure of the cervix in sheep, reasonable success rates are only obtained if the process is done laparoscopically (i.e., a process requiring mild sedation).
Hoping for some really nice AI ram lambs for sale in 2027! The 2025 yearling rams we kept are beasts - one is only very slightly smaller than the 5 year old ram we just parted with (normally rams take ~ 3 years to achieve full growth). One sire in particular produces lambs with amazing fleeces, a superpower that his son seems to also possess. So far we’ve kept all of the AI ewe lambs ourselves.