Can someone tell me what this means in a Thoroughbred pedigree?
What this means and if you could tell me if this is good or bad:
DP = 5-2-5-0-0 (12) DI = 3.80 CD = 1.00
That's what comes up when I looked at my TB gelding's, Uncle Andy, pedigree on http://www.pedigreequery.com/uncle+andy....
Greyt-mom's answer tells you what the Dosage numbers mean.
It's interesting stuff, but....it is seriously flawed.
Thing one about Dosage, it COMPLETELY ignores the female influence on the pedigree. And I mean COMPLETELY, as in treats it as if it doesn't even exist.
Roman and his cohorts, when they determine chefs-de-race and establish influences for these horses, only look at sires. They make no attempt whatever to rate, or even to look at, the females in the pedigree.
From a purely scientific standpoint, you cannot have a valid genetic analysis system that ignores 50% of the genetic influences in the pedigree. It is simply not a valid system.
Thing two: the dosage system is SUBJECTIVE. It is based purely on the decisions of Roman and a few other people who have input with him. They decided, based on purely subjective criteria, whether a horse is a chef de race in the brilliant, classic, or other categories. And their decisions are not always consistant.
Thing three: they cheat. When it looks like their system is losing credibility, they tweak it and add chefs de race with ratings that alter the balances the way they want them to.
Dosage is a quaint curiousity, but that's all it is and all it ever will be. It constantly astounds me how people will look at dosage and treat it as if it is a serious, credible science. Amazing, IMO.
it is a register going bach through the horses history of its breeding and only pure breeds from the original arabian are allowed hence the bloodstock agency etc
DP stands for Dosage Profile. Created by Dr. Steve Roman, the Dosage Profile is an attempt to rate top stallions (called chefs-de-race) based on the propensity of their offspring for different distances. The five classifications (the numbers separated by dashes) are Brilliant - Intermediate - Classic - Solid - Professional, with Brilliant referring to a stallion who sires mostly sprinters all the way up to Professional which refers to a stallion who sires mostly stayers. So for example, your horse's pedigree suggests that he would do his best racing at shorter distances. The number in parenthesis is simply a sum total of the other five numbers.
DI stands for dosage index, which is simply a ratio of the points in the speed wing (brilliant & intermediate categories) to the points in the stamina wing (solid & professional) with the classic points being split evenly between the two wings.
At one point in time there was a theory that a horse must have a DI of less than 4.00 in order to have enough stamina to win the Kentucky Derby. It was popularly bandied about by television talking heads and assorted sportswriters but a number of horses have won the Derby over the last 20 years with DIs higher than 4.0
The last item, CD stands for Center of Distribution, which is a mathematical attempt to show the combined influence of all the major stallions (chefs-de-race) in a horse's pedigree.
To read aaaaaaaalllllll about dosage you can go to http://www.chef-de-race.com , the site run by Dr. Roman.
it's means you might have a very good sprinter, but don't stretch him out further than 7 furlongs, i just might see uncle Andy in the breeders' cup sprint 1 day...good luck and good racing.....
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