If you have access to goats milk, that is a great option. We recently bottle fed a runt and had success with goats milk. Our source was 4-H dairy goat kids, sometimes you won't realize who milks goats until you ask around. Most of the time they have plenty to get rid of. We made a small donation to their project for their help.
This was our first time to bottle feed a runt. I learned we probably won't do it again. Other than to help keep them established on the sow, and let mother nature work. But that is because it's fresh in our minds, a lot of work and a PITA. It's all about the time you have.
A question though, what do you folks use for replacement teets, if you were to lose a sow post farrowing?? I have seen a few buckets with multiple nipples. Any thoughts??
Thanks and good luck