Alfalfa and change of behavior

That is not alfalfa's fault, my dear....she is just passed puberty, was cranky for a few days and now has established a new herd order. Happens when the former boss is beginning to show weakness due to age. Some oldies put up a fight, others not.

I have yet to see a horse go nuts on alfalfa. More energy, yeah, especially when already on the chubby side. I find the Ca-magnesium ratio loosie mentioned also plausible