I think my wethers were abut 9 months, (December) I don't think they build up as much as entires, but I still got about 12-13kg each (Toggs). I was happy with that, was nice to see them playing when young, mum was happy looking after them and I didn't have too much milk to use, then a nice home grown carcase for the table.
I fed beef nuts in the last month or so.
last night everything on the plate was home-grown, such a good feeling.
Thinking about sugar beet - then the custard could be completely home grown :-)