Re-unite heifers with Dam?

[BowersFarm]

We have two heifers that have been separated for weaning from their dam for 83 days. Meanwhile the dams have had calves and are nursing. When can I put the heifers back with the dams and not have them trying to nurse the dam? The heifers are about a year old.

Thanks!

 

[Royd Wood]

Now will be fine