I have seen many cases of pink eye over the years, some so severe the eyes turn white, and some literally explode and are hanging out on the animals face, this happened even with treatment, which I think it was sulfa powder in those days. Of all the cases I have seen only one was a non- Hereford, and that one was a red angus..
All the time and money invested on those animals was wasted, and there was a good number of them. All the potential breeding heifers that went blind were basically good for nothing but slaughter.
Concerning wild and crazy animals, in this country Angus and Simmental are top of the list for insane behavior. I am not sure if possibly the first breeding stock that was brought into this country were of they wilder type or what, but some of the real crazy angus from "out west" as they are known around here, have a strong reputation for being violently aggressive. They often even look different than some of the calmer ones, with a slightly more rounded body type while the calmer Angus tend to have a more angular structure.
One man I talked to told me his angus cattle were so aggressive that one couldn't ride a horse or take a quad out in the fields as the cattle would attack, and he tolerated it, he said because of bear and cougar problems. However I don't buy his reasoning, as he also had Piedmontese, and he said they never were aggressive towards people, but would put the run on wild animals..
Another complaint that floats around this area in the low cutability of many of the
Angus in this area, yet both the Angus and Simmental are an eating machine at the hay feeder, with low feed efficiency. Having long winters and usually only one cut of hay ( if you are lucky you might get 2 cuts per year on an exceptional summer) and high hay prices , you want something that is feed efficient and that can pack on the pounds on lower quality "bush –meadow " grass.
In this country, hair can be an asset not a liability, as long as it sheds in summer.