Bill:
Remind me if you make it to the possible CubFest up here in September. I will take you to see neighbours of ours. The Derosches have been raising sows and market pigs for about 60 years or so. In the last 20 years Ronnie and his brother Leonard have been involved in a new feed business. Much of it is derived from the local commercial bakeries. They reprocess bulk baked goods into livestock feed and transport it all over New Brunswick, Nova Scotia and PEI from my understanding. How they do it is interesting. Seems the processing is just a means to an end as they get paid to pick it up, and paid to deliver it. So that is where the money is, is in the transport. The processing is a side industry. They themselves used to raise the sows (breeder farm) in behind us, and their production facility was over New Canaan way. Now the old breeder farm has been rebuilt into the processing facility -- they have designed and built all of the equipment and it is quite the operation. Their production farm is still up in New Canaan and they have over 15,000 hogs at any given time.
Quite the outfit. I think you would be interested in seeing it. The only concern I would have is the amount of starches (turnips have starch as do potatoes) and the amount of preservatives etc., in the baked goods.
Also, I used to think that hogs were primarily omnivores but that vegetables etc., were their primary diet. Turnips, potato's and other vegetables would be fed to them regularly as part of their feed. Em's grand father used to raise pigs and they would get leavings from the table as well as veggies that were starting to turn.
I am not sure what the best feed would be, but I am curious. Em and I are thinkiing that we just may start raising animals again. Small scale, a meat kings, some RIR's, a turkey or two and maybe a couple piglets to start. It was enjoyable when we did and have been thinking with the price of meat these days, it might be an option for us to mitigate expenses. Cost is not really the main concern, but raising our own fowl etc., we knew what we were getting and none of the stuff the commercial producers feed and there was less fat on them.