She, like most Shikoku that are affected, started showing symptoms at around 6 months of age. It generally starts with head tremors, and then progresses to hindquarter weakness. Symptoms increase as time goes by, and most dogs die at between 3-5 years old. I've included a video that shows her in the mid to later stages of progression.
When Koyuki was finally euthanized, her body was donated to Nippon Veterinary and Life Science University for research, and lysosomal storage disease was confirmed.
Yup, that database that I was just going to pop out, well it's turned out to be more time consuming than I thought. I'm currently manually entering dogs to the database, since a lot of checking and manual correction has to be made to the data. But, better than having no data!
So here we are at the very beginning of the breed. I was pretty excited when I realized I had an unbroken line of data all the way to Choushun.
I've currently got just over 600 dogs entered. My short term goal is to get 10 generations of data entered for all my dogs, and my friend's dogs. I'm contemplating crowdfunding this, since it is costing me a fair bit to create and maintain this site, and it's now very time consuming to get all this data entered (plus all the phone calls to NIPPO to confirm information). But yeah, have some fun and take a look at some of the entries. Right now it's just barebones stuff, no health data or anything like that.
Special thanks to Mr.Ishihara of the NIPPO Chiba branch for collecting this mountain of over 90,000 Shikoku entries, over all these years!
And protip (and another reason this data entry is costing me): NIPPO will send you copies of pedigrees on request, 200JPY/dog.