Fortunately there seems to be a lot of interest in understanding why CRF seems to be getting more prevalent in cats. Unfortunately there doesn't yet seem to be many clear answers.
Here's a Banfield Pet Hospital paper summarizing some of the latest studies with references:
http://www.banfield.com/Banfield/files/9e/9e7f2a34-c7e5-4504-b04a-2524b8331c42.pdf
Here's a Banfield Pet Hospital paper summarizing some of the latest studies with references:
http://www.banfield.com/Banfield/files/9e/9e7f2a34-c7e5-4504-b04a-2524b8331c42.pdf