Farming operations are complex. The following pros and cons have not been factored into this calculator:

• Achieving higher growth rates means that your young stock can reach target weights earlier and, potentially, be sold in earlier markets for a premium, or lambing can be delayed to better match feed consumption with pasture growth rates to reduce the expense of supplementary feeding.
• It is common for feeders used in this calculator to be used for other purposes at different times of the year. This reduces the depreciation expense and increases the return on investment.
• Having a consistent ration with supplement before and after weaning reduces the feed loss stress of ewes being taken away from lambs.
• Creep fed lambs are trained to feeders so if feeders need to be reintroduced for finishing them on pasture or in a feedlot, the transition to the supplement feed can be much easier.
• Higher growth rates achieved during this time will lead to higher weights at joining and increase the conception rate of ewe lambs.