Originally Posted by NoŽlline
I have had Wilma for 8 years (she is now 9 years old) and never she never have a smell urine odor until the last month when i introduced to her a new kitten (Chloť). I should mention that since October 2009 Wilma has been treated with Kidney failure (every 2 to 3 weeks goes for a fluid injection). Wilma is spayed and i use dry food from vet shop and 1 can a day for moisture. Is it possible that my new arrival Chloť suffers from tract infection? We have been blaming the odor on Wilma's kidney failure but i am not too sure.
Since your older cat has CRF the smell of her urine is going to be less noticable than a healthy cat because it is not as concentrated as a cat with fully functioning kidneys.
I would say it is likely the odor is either your kitten with a urinary tract infection or you are just noticing the normal new stronger smell vs what you are used to with Wilma's dilute urine smell.
In either case it would be a good idea to have both cats into the vets for a urinalysis, for Wilma to check her kidney functions and for Chloe to check for a urinary tract infection. If both are clean, then it's likely just the difference in smell healthy vs dilute.
On the topic of Wilma's CRF, she really should not be eating any dryfood at all (unless that is absolutely the only thing she will
eat), she needs the moisture from the canned food as her main diet.
Because water balance is so crucial, it is best to feed a high-moisture diet to help keep the cat hydrated; do not feed only dry food. Feeding mostly or only canned food, even though it is high in phosphorus and protein, provides the moisture and calories that these cats need, in a very palatable form that most cats will happily eat. You can also get low-phosphorus renal diets in canned form.
Dry cat food causes dehydration even in healthy cats, and is not appropriate for CRF cats (unless, of course, it's the only food he will eat!).
More info can be found here: Early Stage Kidney Failure in Cat