Several new research papers have been published on CA: http://onlinelibrary.wiley.com/doi/10.1111...0166.x/abstracthttp://onlinelibrary.wiley.com/doi/10.1111...0166.x/abstract
Cerebellar abiotrophy in a 6-year-old Arabian mare with delayed diagnosis. Equine Veterinary Education Volume 23, Issue 3, pages 130–134, March 2011
Foley, A., Grady, J., Almes, K., Patton, K. and Davis, E. (2011), Cerebellar abiotrophy in a 6-year-old Arabian mare. Equine Veterinary Education, 23: 130–134. doi: 10.1111/j.2042-3292.2010.00166.xhttp://onlinelibrary.wiley.com/doi/10.1111...0194.x/abstracthttp://onlinelibrary.wiley.com/doi/10.1111...0194.x/abstract
. Equine Veterinary Education Volume 23, Issue 3, pages 135–137, March 2011
Johnson, A. L. (2011), Equine cerebellar abiotrophy: Searching the genome for an explanation. Equine Veterinary Education, 23: 135–137. doi: 10.1111/j.2042-3292.2010.00194.x (No Abstract available)
AND a Very Important new research paper published about CA in Non-Arabian Horses.
All three have been posted and/or linked to at the CA Website http://www.cerebellar-abiotrophy.org/index...s&Itemid=28http://www.cerebellar-abiotrophy.org/index...s&Itemid=28
From our first postings back in 2005 and en masse in 2007, we have been saying NOT to cross breed with CA Carriers and NEVER to breed with CA Affecteds at any time.
Cross breeding with a known CA Carrier into another breed whether it be semi related as in Anglo-Arabs or Shagya Arabers or non related such as quarter horses and their derivitives is frankly a sacriledge in my opinion. The arabian breed has enough problems in confronting CA within its own breed; it does not nor should not be spreading it into other breeds as well. If owners plan to breed their CA Carrier horses then keep it within the arabian breed. Please.
And it makes little difference if the disorder is introduced years and years ago. Look at the Bashkir Curlies. It has been ascertained that a purebred arabian stallion which was a CA Carrier was used in the 60s. Easy enough to find he is clearly named on the Bashkir Curlie website as a Foundation stallion and was used extensively. His pedigree is certainly familar to most of us: Nevada Red
With the above research papers, I hope it is becoming clearer that YES, there can be a delayed expression of the clinical signs for CA and that YES, we are going to find this disorder in other breeds if we continue to introduce arabian blood without testing. For example, the anglo arab is an extremely popular sport horse in many countries. Who is going to test all stock when they breed onwards unless they have been throughly warned about CA?
It is mind boggling as to what could happen.