HC timeline's sire :
SULL GNCC Salute post a -38.25 for CEZ . 333 progeny with a epd accuracy for calving ease of 85 % and MCE of -9.8 with a acc of 85%. It's going to take awhile to prove a son....
If the $ values are based on pedigree?
The grandsire of Timeline is -10.4 CE 82% acc -11.1 MCE 81% acc and his $ CEZ is -27.28??
You need more people using timeline to prove otherwise? Sell semen maybe?
Sue, I know why Timeline's numbers are what they are, and it is probably pedigree based. He is not my main concern with these numbers. My concerns are with several other animals that I have used. I know that there are always going to be inconsistencies in EPDs until the accuracies become higher. What I struggle with is the fact that in some cases I see little correlation between the numbers and the usefulness the animal possesses. Our Bar Code bull's EPDs are BW 1.6, WW +7, YW +14, Milk 0. The new EPDs are $CEZ +16.96, $F +19.25, $BMI +23.75. If I was considering buying this bull to use in my herd, how could I use these numbers to evaluate his actual performance. Many people would stay away from him because he has a WW EPD of +7 ( due to the old genetics of his sire) . Bar Code weaned at 692 (adjusted to 205 days - no creep). His YW was 1121 adjusted ( actual was 1230 lb). He weighed 2020 at 24.5 months. How would these EPD numbers help me decide that this bull has adequate growth when they are so moderate?
Maybe I just don't understand how these numbers are generated but take a look at the EPD s of his sire and dam:
BW WW YW Milk $CEZ $F $BMI
Pheasant Creek Leader 4th -3.0 -6 -5 -2 +52.82 +7.98 +31.37
B Good Red Sue 1P +6.2 +21 +21 -1 -18.24 +30.64 +20.48
I just don't know how some of these numbers are arrived at? I can see how some of them have been arrived at, but what was used to base the numbers on some of these older genetics like Leader 4th? Look at any older sire and their numbers always suck. Both sire and dam have negative Milk EPDs yet his Milk EPD is 0. The Milk EPDs suggest that Red Sue should be a lower than average milking cow. In reality, she is one of the few cows I own that I wish had a bit less milk as her calves only suck one or two teats for several weeks after birth. I consider her to be a much above average milking cow. I guess my biggest problem is I have to wonder how I would use Bar Codes EPDs to use them to make a selection decision?
As I mentioned previously, I look at the EPDs in many of my heifers and I am left scratching my head as to how I would ever use these numbers to select my replacements. They just don't seem to match reality!
Believe me, I want to believe the numbers. I want to be able to use the numbers. Maybe I haven't drank enough of the Kool-Aid, but common sense seems to leave me with a bunch of questions after I study the numbers. I hope before I leave this earth, I will be able to see some EPD numbers that will allow me to feel comfortable with them, and be able to know that they can be the tool to help in selection of breeding stock that they were intended to be.