robert":2ntv20g4 said:
nice functional, typey cattle Dylan Biggs, the red calf has a real herd bull look to him, the old black bull looks like a real cow maker. There is only one reason we still use a mainstream AI sire in our breeding program rather than only our home raised bulls, and it isn't the quality of the calves, it is to maintain linkage with the mainstream population so that your EPD's don't go down the pan in the out-crossing, latest greatest to fix the problems of the last latest-greatest, scheme that genetic evaluation has become. EPD's today are the baby beef and frame score race of the past.
Robert, thank you.
EPD's as a selection tool are fine, EPD's for the sake of bigger numbers and marketing appeal are just as you stated.
Our old bull has been used natural service in two different purebred herds the last two years which should improve his accuracies if nothing else. As far as using "mainstream" AI sires, it is not a practice I have ruled out completely, partially for the reason you stated, but when and if I do, I will no longer rely on third party evaluations of a bull or of his progeny. If I can't see the bull, his progeny, and producing daughters in the flesh, I won't be using him. To me, any more, sire selection is as much about genetic risk management as genetic improvement, which when you think about it is a bit of a sad statement. Maybe I am just becoming jaded and paranoid! For sure I don't believe any of the marketing jargon/propaganda in AI sire directories.