If you mix, receive, or load feed at night, consider positioning your yard lighting to shine in each bin, and to illuminate the slab area where the feed wagon is parked for loading. Many commodities are delivered ready to feed. In fact, a good grain mix can be formulated all with feeds not needing processing. This can help hold down the initial investment, but Oregon dairies reported a need for limited processing to make best use of commodity feeding. Most use a dry roller to crack grains for feeding.
Some operations also use a molasses-based liquid feed in the finished ration.
Of course, this requires tank storage and a loading pipe. Liquid feed can be drained into the loader bucket and dumped into the mixer wagon, but most who have tried this say it's unsatisfactory. Pumping it through a pipe into the running mixer is far better. It would take 45 months to pay for this investment through the assumed grain savings only. Interest on purchased commodities is not included.