How long to do you have to wait to AI?

How long do you have to wait until you can breed a cow back after she calves?

i"ve put cidr"s in as early as 25 days and got them to stick

I prefer 60 days, but use 45 as my personal limit.

I once had a cow breed back in 33 days (natural service) but I like to have them 60 days post-calving

I always breed mine back any where from 50 to 60 days

Breeding A.I. or natural, breed as soon as the cow comes in heat.  However, the first heat post partum is "normally" not as good of a heat.

My ET Vet recommends, concerning inserting CIDR's...

1. For breeding a donor for a flush wait 60 days post partum.
2. For A.I. breeding or synchronizing wait 45 days post partum.
3. However, he says you can do 35 days post partum, however the conception rate may fall.

My ideal is 60 days. But if I want to move up a cow I use 30 days as my limit. This year I moved up first calf heifers 1 1/2 months synching at 30 days.

My college classes list 60 days + or - 5 days

We try to wait until day 45.