analysis of 4495 canine and feline uroliths in the benelux. a retrospective study: 1994-2004. | from 1994 to 2004, hill's pet nutrition received 4495 canine (65%) and feline (35%) uroliths from benelux veterinary practitioners. they were sent to the minnesota urolith center, usa for analysis. in 1994, 110 uroliths were analysed - 85% from dogs - and in 2003, 1067 uroliths were analysed - 59% from dogs. during this period, substantial changes were observed in composition. in 1994, 77% of the cats had uroliths composed of struvite, and 12% had uroliths composed of calcium oxalate. in 2003, f ... | 2007 | 17516947 |