General care and pack goat maintenance. All welcome to post

[Duck-Slayer]

I got a question being new too the pack goat stuff, I got 3 wethers and we strictly have fed them straight alfalfa, is this ok? we do have a (red) mineral/salt block in with them, don't remember what it was, been in there about 5 months, is this a decent diet for them? I take them out almost daily too eat the newly emerging weeds/grass, they also graze on our 3 acre pasture during the summer when I let them out daily.
Matt