I wrote to the vet at Holar in Iceland and asked about any studies that might have been done cryptorchidism. Here is her reply.
-----Original Message----- From: Sigríður Björnsdóttir [mailto:[EMAIL PROTECTED] Sent: Monday, April 30, 2007 2:36 PM To: [EMAIL PROTECTED] Subject: cryptorchidism Hi Karen. There have been no studies about the prevalence of cryptorchidism in the Icelandic horse but I agree it seems to be quite common. All the best. Sigridur Björnsdóttir Veterinary Officer for horse diseases [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>