If a surgery can not be performed, then the variant is to treat the dog with antibiotics, dietary protein restriction, and other medicine that will help for reducing ammonia production. (yorkiemag.com)
Many veterinarians recommend a low - protein «prescription diet» for cats in renal failure, but there is some controversy regarding protein restriction, especially in the early stages of the disease. (consciouscat.net)
There is also no solid evidence that protein restriction prevents further damage to cats with existing kidney disease. (consciouscat.net)