[QUOTE=Jackie Cochran;7624652]
Well Bayhawk, it sounds to me that your excellent breed of excellent jumping horses has come to a problem (I’m using the phrase “your breed” because of your deep knowledge and concern.)
I was looking at some of the pictures of Holstein ancestors to see exactly what the TB blood did to the breed. Comparing the pictures of the ancestors to the pictures of modern day Holsteins, the TB lengthened the croup and changed the forehand. It is hard to judge the withers with extremely upright necks, but it looks like the TB moved the withers back and gave more slope to the shoulder. In other words the TB blood turned a carriage/light draft horse into a riding horse, showing all the conformational marks of a good riding horse, good shoulders, croup, etc… The Holstein breeders who sought to turn the Holstein into a riding horse SUCCEEDED with plentiful infusions of hot blood. They succeeded well enough that even several generations without new hot-blood crosses the Holstein is still a decent riding horse. This is impressive.
American breeders of American breeds have faced this problem for generations. ALL these breeds I am mentioning started off with an upgrade on American colonial mares by breeding to the TB (the gaited breeds through the Morgan and Standardbred.) The Quarter Horse breeders went back to the TB blood to make the bull-dog" QH more suitable for general riding. The gaited horse breeders (American Saddle Bred and Tennessee Walking Horse) did not have this luxury since the TB tends to “kill the gait.” The Standardbred did some re-introduction of hot blood (TB, Barb and Arabian) but that has been over a century ago, and now I doubt any Standardbred breeder would go to hot bloods since the Standardbred is a trotter/pacer and the modern TB blood/hot blood interferes with producing top speed at these gaits. The Morgan went to the American Saddlebred as an outcross to make a better riding horse probably because the Morgan was mainly developed as a harness trotter and a TB outcross might make a better riding horse but it would probably wipe out what makes a Morgan unique, especially its “trappy” trot, compact conformation, high head carriage, poweful neck, etc…
My point is that in using a TB or other outcross hot blood was often needed at first to get the breed going, but the American breeders realized that, if they wanted to keep the traits that the mare lines brought into the breed, among them good speedy trots, high action, easy gaits, and special types of personalities, they had to give up the TB outcross. The QH breeders were lucky, apparantly the TBs they outcrossed to did not totally “kill the cow-sense” and the TB sprinter lines did not ruin the QH type and conformation.
Your breed is going to have to give up something to keep doing the infusions of the TB blood. The particular and extremely effective jumping talent of your mare lines is not crossing well with the modern TB lines. Most TBs can jump, they jump like a TB and often rely on their sheer physical ability to get over the unexpectedly challenging fences. Your breed has specialized lines with specialized physical abilities, just like the American STBs, ASBs, TWHs, and Morgans had their own specialized physical abilities that are not in the TB breed genome. The American breeders of these breeds gave up on the hot-blood crosses to keep these traits. In the long run the Holstein breed might also have to give up the TB outcrosses to keep the Holstein jump.[/QUOTE]
The modern Holsteiner jump comes from Ladykiller and Cor de la Bryere, a son of the TB Rantzau.
It’s not as though all TBs just launch themselves over fences.
You assertion in bold. Where is that coming from?