Use with FACTREL for estrous synchronization is consistent with protocols recommended by the Dairy Cattle Reproduction Council. A synchronized breeding program with LUTALYSE can: Improve pregnancy rates Reduce time necessary for heat detection Make more efficient use of labor Reduce cull rates An entirely natural prostaglandin. No meat or milk withdrawal. A product you can trust for performance and safety: LUTALYSE is the most thoroughly researched prostaglandin in the world2 Useful therapeutically for controlled breeding. Ideal dose size reduces problems if injection-site leakage occurs.