Black Type Percentages From Inbreeding
Posted: Mon Apr 26, 2010 3:02 pm
Jockey Club Information Systems has developed a software program that draws on the JC database and is more sophisticated than other similar programs. Before the JC launches it a participant in one of the online forums that I frequent has been testing it and sharing some of his results.
An interesting feature is an 'Inbreeding" option where one types in a name and a range (say generations 2 through 4) and up comes a statistical summary of how well inbreeding to that horse has done. One of the tests he ran was for inbreeding to significant broodmares and Almahmoud came up with monster figures.
672 foals of racing age inbred to Almahmoud;
506 (75.3%) were starters;
350 (52.1%) were winners
49 (7.3%) were black type winners.
Next closest with Black Type were: My Dear Girl - 2.9%, Natalma - 2.8% and Somethingroyal - 2.7%.
They were followed by Gold Digger - 1.9%, Miss Disco - 1.7, Cosmah, Grey Flight and Busanda - 1.6%, Shenanigans - 1.4% and Rough Shod - 1.3%.
So much for the Rasmussen Factor!
When the program was run for stallion inbreeding Nearco topped out with 3.9% Black Type, followed by Native Dancer - 3.5% and Mahmoud - 3.4%.
Nearctic - 2.9%, Hail To Reason and Nashua - 2.8%, Buckpasser and Nasrullah - 2.7% and Royal Charger - 2.6%.
The ubiquitous Northern Dancer cross tied with Hoist The Flag at 2.3% and Raise A Native and In Reality with 2.2%. Halo and Bold Ruler scored 2.1 % and 2.0 respectively.
An interesting feature is an 'Inbreeding" option where one types in a name and a range (say generations 2 through 4) and up comes a statistical summary of how well inbreeding to that horse has done. One of the tests he ran was for inbreeding to significant broodmares and Almahmoud came up with monster figures.
672 foals of racing age inbred to Almahmoud;
506 (75.3%) were starters;
350 (52.1%) were winners
49 (7.3%) were black type winners.
Next closest with Black Type were: My Dear Girl - 2.9%, Natalma - 2.8% and Somethingroyal - 2.7%.
They were followed by Gold Digger - 1.9%, Miss Disco - 1.7, Cosmah, Grey Flight and Busanda - 1.6%, Shenanigans - 1.4% and Rough Shod - 1.3%.
So much for the Rasmussen Factor!
When the program was run for stallion inbreeding Nearco topped out with 3.9% Black Type, followed by Native Dancer - 3.5% and Mahmoud - 3.4%.
Nearctic - 2.9%, Hail To Reason and Nashua - 2.8%, Buckpasser and Nasrullah - 2.7% and Royal Charger - 2.6%.
The ubiquitous Northern Dancer cross tied with Hoist The Flag at 2.3% and Raise A Native and In Reality with 2.2%. Halo and Bold Ruler scored 2.1 % and 2.0 respectively.