@lvoss:
The trick I use with my male cats who are prone to blocking if they develop a UTI is to add water to every meal. I have been doing this same thing with Rio right now to make sure she is hydrated well enough to produce milk for L'Ox.
A couple of questions, I can't remember, was Kananga tested for Fanconi using the DNA test? Second, how well developed is his genetalia? Males can be more prone to problems if they are smaller.
He has not been DNA tested for Fanconi. That's on my to-do list for 2010. I actually discussed that with my vet when we were there on Saturday. She said they were more than happy to help me out with that when I choose to do so.
As far as his physical development, I have no idea whats considered proper in regards to his genitalia. He was neutered earlier this year and developed a UTI just days after. This would be his 2nd UTI in 6 months.
If you find that this is a chronic problem due to something like crystal formation then I would recommend making one of his meals wet food with extra water added to make sure he is drinking enough. Also add extra water to his meals when there are extra stressors in the house because these tend to be triggers for crystal formation.
Great ideas, I will without a doubt give these a try if the results come back positive for a UTI.