Not only has this "inedible brush" kept the cattle in good shape through the winter (without depending on supplements) the browsing by cattle has stimulated new growth in them (which isn't happening in adjacent pastures) but has also stimulated new grass (which you can see in the bottom left of the picture.)
The interesting part is that there was no "training" to get the cattle to eat these plants. All it took was was changing they way they were handled and they added the diversity to their diet on their own. They get handled no more than once a week, and at times go a month or more without being handled.
Rebooting herd instinct has increased the diet diversity in virtually every herd it has been done one, and resulted in lowering or eliminating protein and energy supplements. For more information on how to reboot herd instinct to use in holistic/regenerative grazing programs without adding fences, visit my website.