I will need to go and work out how many bags of mix we are using just now... But, we are using 1 big round bale of hay every 2-3 weeks, 1 bag of grass every 3 weeks, 1 bag of beet pulp every month. 1 net of carrots every 2 weeks, a box of apples every 2 weeks, and probably equivalent to two nets/boxes of cabbage a fortnight. We use flaked barley, and we probably use 1 bag a week.
We currently have 13 adults and 4 kids. But I will add 3 adults are on minimum rations of a handful of mix and a handful of grass every feed in an effort to keep their weight down..... So really only 10 adults eating appreciable amounts.
Beth