[quote=luvs2ride1979;435182]I spread some Rye here. It doesn't grow as lush as the summer grass, so it shouldn't cause any founder issues.quote]
Rye is a small grain. Small grains are overseeded across pastures and fields across the South for winter graze; however, in a fertile situation, small grains are very lush and have high sugar levels, and they fatten cattle very well - thus the reason so many cattle are pastured on them in the winter months. Depending on fertility levels, seeding rate,height of grass, etc. you could easily have a situation where you could founder an animal.
Any of the small grains would be good for overseeding the pasture. Rye, Oats, wheat, etc.