My take on the multiple bull deal is that since we only keep heifers from a few specific cows that using a bull that will compliment the individual cow better will have the affect of more standardizing the cow herd. For the meat making cows, i.e. those that we wouldn;t keep a calf from anyway, we use a bull that will address any weakness but from the meat/carcass aspect. A cow that is a little light on marbling or ribeye would be bred to a bull that is those traits, if she's a little light in the muscle expression (not a big butt) she would be nred to a bull with a lot more muscle as long as it doesn;t detract from the positives of marbling and ribeye. A few may need to have the backfat issue addressed, etc. The goal is to produce #1 and high #2 muscle in a large medium to small large frame. Those are the calves that our buyers are looking for.
For the heifer making cows, the bull still needs to have accdeptable carcass traits since we want those in the cow herd anyway but may need deeper heels, better legs, less milk, stronger udder, etc.
But I've found that over the years a lot of the bulls we tend to use for the heifer making are all sons or grandsons of a couple of specific bulls. I don;t go shopping for that bloodline but it seems that those are the bulls that I prefer.
Sorry, looks like I'm in verbose mode tonight
