The primary selection might be to maintain and expose cows to rebreeding for spring/slide calving. The 2nd alternative can be to put excess weight on and sell as cull cows afterwards. Bob Birdell, who farms and has a cow-calf herd close to Stanberry, Missouri, reported he tries to consider age, https://leftbookmarks.com/story17560675/the-basic-principles-of-lost-calf-hats