Aus Trakehner-Sicht!!!!!! Wo ist hier der Verband aktiv ?
a
3. The studbook rankings penalize small studbooks.
The studbook rankings are computed by summing the points earned by the top six competition horses (in each discipline) born into each member studbook. The fact that some of the studbooks produce 10,000 – 15,000 foals each year while others produce much smaller numbers is not taken into account.
I have already pointed out the immense, but unrecognized, contribution the Trakehner Studbook has made to the KWPN's first place ranking in dressage. In 2009 the Trakener Studbook registered 1,234 foals. Let's assume the KWPN registered 12,000 foals – approximately 10 times as many foals. Now let's take the KWPN's 12,200 ranking points and divide that by its 12,000 foals: that gives us 1.02 points per foal. Now let's do the same for the Trakehner Studbook: 5,498 ranking points divided by 1,230 foals gives us 4.47 points per foal. So the Trakehner Studbook is producing 4.5 times as many points per foal as the KWPN Studbook. Which is the better studbook for dressage? Now the answer is not so clear.
Of course this is a rough and ready calculation but it does illustrate that we cannot understand the true genetic value of a studbook if the WBFSH ranking methodology does not adjust for the size of the population of each studbook.
The WBFSH must come up with a methodology that takes into account the size of the studbook and the number of chances it has to produce top athletes. If not, the rankings will remain biased in favor of big studbooks and biased against small studbooks. One solution could be to count the international results from every competition horse born into each studbook and adjust for studbook size by computing two rankings based on the average number of points earned (a) per international athlete and (b) per horse born into the studbook at some point in time (for example, ten years prior to the ranking year).
Until now in this letter I have focused on studbook rankings. Now I would like to turn our attention to the ranking of sires.
Zu finden unter: http://www.eurodressage.com/news/bre...penletter.html
Siehe auch unter :Mut zum Blut
Gruss der GLASKUGELPEDIGREE-ANALYST alias carlo
a
3. The studbook rankings penalize small studbooks.
The studbook rankings are computed by summing the points earned by the top six competition horses (in each discipline) born into each member studbook. The fact that some of the studbooks produce 10,000 – 15,000 foals each year while others produce much smaller numbers is not taken into account.
I have already pointed out the immense, but unrecognized, contribution the Trakehner Studbook has made to the KWPN's first place ranking in dressage. In 2009 the Trakener Studbook registered 1,234 foals. Let's assume the KWPN registered 12,000 foals – approximately 10 times as many foals. Now let's take the KWPN's 12,200 ranking points and divide that by its 12,000 foals: that gives us 1.02 points per foal. Now let's do the same for the Trakehner Studbook: 5,498 ranking points divided by 1,230 foals gives us 4.47 points per foal. So the Trakehner Studbook is producing 4.5 times as many points per foal as the KWPN Studbook. Which is the better studbook for dressage? Now the answer is not so clear.
Of course this is a rough and ready calculation but it does illustrate that we cannot understand the true genetic value of a studbook if the WBFSH ranking methodology does not adjust for the size of the population of each studbook.
The WBFSH must come up with a methodology that takes into account the size of the studbook and the number of chances it has to produce top athletes. If not, the rankings will remain biased in favor of big studbooks and biased against small studbooks. One solution could be to count the international results from every competition horse born into each studbook and adjust for studbook size by computing two rankings based on the average number of points earned (a) per international athlete and (b) per horse born into the studbook at some point in time (for example, ten years prior to the ranking year).
Until now in this letter I have focused on studbook rankings. Now I would like to turn our attention to the ranking of sires.
Zu finden unter: http://www.eurodressage.com/news/bre...penletter.html
Siehe auch unter :Mut zum Blut
Gruss der GLASKUGELPEDIGREE-ANALYST alias carlo



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