salt.. hmm.. does it play a role in this?
I have brown salt blocks out for my cattle right now. occasionally when they are out I use the yellow sulfur salt. but have brown out now.
i don't see any salt in the neighbors pasture.
I use cargil / neutrina feeds mostly. he's using a local feed.. seminole.. but it's marked cattle.. not sure if it has trace minerals or not. never seen a bag tag.. etc.