Purpose of estrus synchronization
- Group females for parturition:
a) decrease labor, decrease calving period
b) reduce calving season
c) More uniform weaning weights.
- Reduce or eliminate estrus detection.
- Needed for artificial insemination
Cattle
- Prostaglandins – Regression of CL
o Lutalyse, estrumate
- Progestins – Prevents estrus and ovulation
o CIDR, MGA
o Combined with prostaglandins
- GnRH – Ovulation, terminate follicular wave
o Combined with prostaglandins in Ovsynch