That's my concern as well, because I have seen just that back in 2005 w/ my bridge bun Little Happy. Around Sep. 2012, the water cup has been consumed by either 1 or both buns in a higher than normal volume. On average, I never notice neither buns drink water. In the past mth., I notice both of them drinks water about twice a day.
But w/ Bobby, it just so happened that in an unrelated chat w/ the vet, that he said there is not enough Oxbow given to the buns, so I increase the amt. of Oxbow. And the increase in water consumption starts shortly after. And there are a lot more bunny poos from Bobby, and their size is bigger too, and he is eating much more hay as well. So needless to say, the more he eats, the more he drinks. I also increase the room temp. in the house by 1 deg. C
So I dropped the idea of a blood test on his kidney. But I now notice his urine is clear, so that in conjunction w/ the higher than normal water consumption, I'm now leaning on kidney problem. Although the other symptoms of kidney failure does not occur:
weight loss, signs of pain, peeing excessively or straining when going to the toilet.
Anyhoo, Jane, you have seen more cases than I have, what's the average outcome for most buns? Assuming this is chronic kidney failure? I'll get him to a vet, but for long term care, I would be interested in some alternative care solution in his diet, any food that can improve kidney function for e.g.