There has been a growing movement for farmers to seek additional feed sources for drought seasons and winter. Traditionally farmers would set aside dry feed or silage for the winter, but many have found themselves unprepared for warm seasons of extreme drought. This, like everything else, makes pastured meat more expensive.
The Australians have really been looking into this problem, and they have suggested planting trees for fodder during drought. If done with alley-cropping techniques, this can actually increase pasture production thanks to the windbreaks and shade the trees will produce.
If your animals are having trouble accepting the survival fodder, or you aren't sure what to feed them, more information is here. Rabbits can eat anything horses can eat, and I think goats and cattle as well.
Some of the best agricultural information is coming from the tropics these days.
Once fodder trees began to be planted on-farm, thetechnology spread rapidly throughout the region, asfarmers quickly realized the nutritional benefits offeeding fresh leaves to their cows.