Caught two very small ones yrs ago. Was in your same shoes. I was told by a wildlife rehabilitater to use a product called Esbilac which is a milk replacement for fur bearers. I mixed it with Gatorade. They love the taste and it (gatorade) has electrolytes which are good for them.
After a few days I would mix the Esbilac with Gatorade and Gerber powdered baby food in a box I purchased from any Piggly Wiggly.
This keeps them healthy and satisfied as they grow extremely fast and have huge food demands.
Esbilac is still available.
PM me if you want, would be glad to be of help.
BTW, my male went from roughly 2.5 lbs to 165 lbs in 10 months. I know this for a fact as he was officially weighed at that time.
...Jefroka
i was wondering if you would like to give one of those pigs away i always wanted a baby pig