Great article.
So, that makes me wonder if areas that are able to graze lush green small grains, do you have reproduction problems? Or would you never be breeding cattle while they are grazing?
Why I ask, is that here in NY, grass grows super lush in spring, with super high protein levels. I have a bugger of a time with fertility at this time. BUN (Blood Urea Nitrogen) gets too high. The cattle cannot utilize that much protein, so it converts into urea. You can go around your fields and find 2-3 foot circles of burnt grass. The ammonia in their urine burns the grass. With this much ammonia, it changes the PH in the uterus. They are super healthy, cycle like crazy, but the sperm or embryo cannot survive in this environment, so the cattle come back into heat on their normal cycle.
I have to get them bred BEFORE lush grasses or supplement (force) with low quality hay.