We all know how expensive feed can be for our small livestock. Some could be well served if started on and fed a diet of Kudzu. Animals, just like humans can experience adverse effects if their diet is drastically changed with no slow transition. Rabbits raised from birth on commercial pellets will get the scours (diarhia) and can even die if fed too much green food they are unused to. They also can be weaned off pellets and transitioned to green fodder with very little effort. Kudzu has been used to raise goats and cattle as well.
The good news is that kudzu grows relentlessly. The bad news is that kudzu grows relentlessly. Kudzu is one of the most invasive plants on earth. Most of the places they've introduced it, they wish they hadn't.
Ither good news it that if you plant it near your bugout location it makes great camo in a short time... the bad news is that unless know the exact coordinates and have a good machete and strong arm you will never see it again...