One thing that tended to really grind my gears in a previous career, and still does today when people ask about performance is, “What’s the average Weaning Weight?” or “What was the average MARB score?” The fact of the matter is when this is asked, people are asking for “How hard were they fed?”
If I was alive in 1940 when the performance revolution started to take its infancy, I would care, but I would not know how the cattle were managed. I fondly remember not too long ago at a bull stud I used to work for, the #1 bull in our book for Actual & Adjusted YW, well over 1500 lbs, was also, once proven through proven through EPDs, our WORST out of ~80 bull for growth.
Did we buy genetics or pop-culture and environment there?
See video below—-