Typically when purchasing new animals they should be in there own group instead of selecting an previous group. Since this group shared the same purchase cost, is why you would want a new group. If the old group has been all sold and no longer has a head qty then you can simply retire that old group name. With the Accounting software, it will make your life easier to creating new groups.
Did you ever record a birth to a breeding group after existing the Initial Setup?
Did you ever record a birth to a breeding group after existing the Initial Setup?