OverseerFM does not currently model dairy sheep enterprises. The closest work around is to enter the dairy sheep milking mob as a dairy goat enterprise and other stock such as the dry ewes and replacements to be entered as normal under a sheep enterprise.
When entering the milking ewes in the dairy goat enterprise, they should be brought on to the farm as they give birth and taken off as they are dried off, then brought on as dry ewes in the sheep enterprise. Avoid using any default dairy goat values and instead specify the mean birth date, mean weaning date, replacement rate, milk solids production and lactation length and weight which best describes the milking ewe mob. Where lambs are removed from their mothers and hand reared the weaning date should be entered as within as few days of the mean birth date.