https://www.bovine-elite.com/NewsProtocols.pdf
See pp3-4 for Timed AI ("TAI") protocols. Summary: insert CIDR and inject 2cc GNRH on Day 1. One week later, remove CIDR and inject 5cc Lute ("PG"). Then, at X* or Y** hours later, perform AI and inject another 2cc GNRH.
*For Cows, X =60 to 66...