[QUOTE=chicki;2226778]
I was simply telling you how they are classified by the breeding authority on that studbook. Anyways…you can enter arabs and tbs into different registries,…I don’t consider them crosses. A horses breed is what it is registered as. I don’t there there is any definition of horse breed that states: breeds are only those which have a closed studbook".[/QUOTE]
I would refer you to Sandro Hit http://www.schockemoehle.com/englisch/s333938.html who is a very influential sire across the warmblood registries. He is registered Oldenburg and approved in many registries including Hanoverian. By your definition any Hanoverian registered mares offspring by him would not qualify as a Hanoverian?
Tbs and Arabs can be entered in to open registries (those producing crosses) generally for improvement. TB and Arabian registries do not allow registration of outside blood (closed books) which is the only way to ensure that common traits are produced.
There is no doubt that TBs and Arabs exhibit common breed characteristics but there is a long way to go before you can claim the definition of “breed” for warmblood registries;
What is a breed?
The classic definition of a “breed” is usually stated as a variation of this statement.
Animals that, through selection and breeding, have come to resemble one another and pass those traits uniformly to their offspring.
Unfortunately this definition leaves some unanswered questions. For example, when is a crossbred animal considered a composite breed and when do we stop thinking about them as composites? Perhaps this definition from The Genetics of Populations by Jay L. Lush helps explain why a good definition of “breed” is elusive.
A breed is a group of domestic animals, termed such by common consent of the breeders, … a term which arose among breeders of livestock, created one might say, for their own use, and no one is warranted in assigning to this word a scientific definition and in calling the breeders wrong when they deviate from the formulated definition. It is their word and the breeders common usage is what we must accept as the correct definition.
As you can see from Dr. Lush’s definition it is at least in part the perception of the breeders and the livestock industry which decides when a group of individuals constitutes a “breed”.
The development of the breeds takes different routes also. In some breeds you can see the amount of change that can occur as the result of selection for a small number of traits. As an example, Holstein cattle have been selected primarily for milk production and are the highest milk producing cattle in the world. Other breeds have traits that result from natural selection pressure based upon the environment in which they were developed. An example of this might be the N’dama cattle from west Africa. These animals have, through the centuries, developed a resistance to trypanosomiasis or sleeping sickness spread by the tse-tse fly, which is fatal to most other breeds of cattle.
