Quote Originally Posted by fragrancehound
How fast do the symptoms of kidney failure appear? The reason I ask is because I started a new bag of food, the green pea and venison, on April 13th. Would my cats exhibit any symptoms by now?
I would call your vet they can do blood tests/urine tests to determine if there is problems with kidneys. This is what vet's are doing if owners know they ate the food and havent shown symptoms.

Cant answer you on when time frame symptoms would appear.

This is from the avma.org site (american vet medicine association)
If your pet has eaten a recalled pet food, he or she should be seen by a veterinarian, whether or not the pet is sick. Some pets appear well but have abnormal tests. Because the drug found in the recalled pet food appears to affect the kidneys and causes low white blood cell counts in humans, blood tests should be done to check the blood cell count, in addition to blood tests to check kidney function. A urine test is also needed to monitor kidney function.