We started dabbling in feeding/selling calves and shares of calves to people for butchering at a local processor last year when prices at the auction started getting criminal. By this spring we'll have sold & slaughtered around 25 or so.
Some things we have tried and learned so far:
-You can still get high quality and economical beef by slaughtering at much lower weights than typically customary. Last year none of our calves weighed over 700 lbs and this year none of them will weigh much over 850. Meat taste and tenderness was comparable to what you'd get at the HEB prime counter - coming from a group of meat snobs that only buy from the prime counter anymore.
-Be patient when acclimating the calf to feed. Don't plan to start feeding any later than 5 months before slaughter - more would be even better. This gives you time to start low and slow in getting the rumen used to the high calorie grains like corn. Move up the ratio of corn even a bit too fast and you will be fighting acidosis- which can pretty well ruin the quality of the animal if it's bad enough. Had it happen to one of the 5 we started with and he lived but never grew right afterwards.
-Feeding a blend of cracked or rolled corn, cottonseed meal, and cottonseed hulls has worked well and relatively economical compared to some of what they sell at the feed store. We start them on a 60/20/20 ratio at 0.5% body weight and step them up every 2 to 3 weeks by half a percent body weight until we get to 3%. Then we change the ratio to 70/15/15 for about a month at 3% body weight. After that we let them eat free choice. Has worked a lot better than the initial group that we rushed. No issues at all.
-We could probably push ours to gain more if we jumped up the corn content closer to 80% once they've acclimated to free choice. We'd rather save the hay for the herd though and keep them on the 15% cottonseed hull diet - really keeps their hay intake to a minimum.
-We charge about 6.25 a pound boxed weight for our beef to those we sell to - that includes all meat cuts as bone in. We give them equal shares of all roast, rib, steak, etc. cuts. Most people don't bat an eye at that. We are probably shortchanging ourselves because we end up with only a $500 per head profit over what we could have sold that calf at auction for at the beginning of the process. That's after feed cost and the butcher are paid. Or maybe I'm just greedy, but that's a lot of work and risk for only $500 / head. But it has helped and we haven't lost one yet.
-We still have much to learn. I enjoy these threads and definitely take note of what others are doing. I'd imagine the me 5 years from now will laugh at what I thought and did now. That said, this is a very rewarding endeavor. Kudos to you who have had the nerve to try it.