The Five-Cross Files

Rachel Alexandra and the Rasmussen Factor

26 Aug 2009 10:49 AM
13 Comments

The superfilly's pedigree shows that 30% of ancestors in her first four generation are Rasmussen Factor matings.... Read More

Thoroughbred Pedigree Review of KEESEP Hip #4233 -- A Rasmussen Factor Case Study

19 Aug 2009 2:46 PM
23 Comments

An offering at the upcoming Keeneland yearling sale is inbred to the dam of A.P. Indy, which inspires a quick look at the Rasmussen Factor pattern of Thoroughbred inbreeding.... Read More

Inbreeding Notations in Thoroughbred Pedigrees

31 Mar 2009 12:00 PM
32 Comments

Several five-cross pedigree examples will help illustrate this overview of inbreeding in Thoroughbred bloodlines. By the time you're through, I hope you can spot an error on one of the reports.... Read More

Thoroughbred Pedigrees Show Little Genetic Diversity -- But Less Inbred Than Other Livestock

28 Jan 2009 2:08 PM
14 Comments

Selective inbreeding is one of many pedigree patterns to consider for Thoroughbred breeders. Two linked articles offer interesting perspectives on the practice.... Read More

Broodmarathon -- Dam of Eight Belles

07 Oct 2008 2:30 AM
12 Comments

Normally, the dam of a popular graded stakes winner -- carrying her full sibling, nonetheless -- would garner only positive attention at the breeding stock sales. In the case of Eight Belles' dam, though, some of the talk is about whether the repeat mating was the best idea.... Read More

This Thoroughbred Stallion Is All-American

29 Aug 2008 12:13 PM
6 Comments

On a day when the world loudly celebrates a couple of all-American political campaigns -- the Obama/Biden ticket is now official and McCain/Palin is today's big news -- I thought it would be fun to look at an aptly-named Thoroughbred whose influence on the breed is growing every year.... Read More

Archipenko Worth a Million for an Old Mare

07 Aug 2008 5:51 PM
42 Comments

Archipenko stands out for two reasons, both related to his female family. His dam was old when she produced him, and his granddam is a truly special mare.... Read More

Inbreeding, and Why Big Brown's Looking Good Beyond May 3

03 Apr 2008 2:33 PM
17 Comments

... Okay, so where am I going with all this? BIG BROWN. If you haven't already gotten on this colt's bandwagon for his racing accomplishments, get ready to see lots more of this fellow in the future. As in, during his post-race career. ... Read More

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