Vol. 8, Issue 4, Part G (2023)

Urinary tract infections (UTIs) in dogs are due to multifactorial reasons and mainly by due to bacterial infections. Persistent or recurrent UTIs result in spending many costs on treating the dogs. The present study was carried out with the objective to detect the predominant types of crystals in E. coli causing UTIs in canines and in correlation with its pH range. Overall 18, samples were collected from canines, which showed symptoms specific to UTIs and were presented to VCC, Rajiv Gandhi Institute of Veterinary Education and Research (RIVER), Puducherry. The urine samples were subjected to microscopic examination, bacterial culture, and pH analysis. The predominant crystals were calcium oxalate, triple phosphate, and abnormal crystals like ammonium biureate crystals, and the most predominant bacteria from UTIs were identified as E. coli (12, 75%) and Klebsiella spp.+ E. coli (3, 18.75%). The pH range in these urine samples was found to be between 4-7. Therefore, the present study showed the predominant type of crystals in canine urine with a higher incidence of E. coli infection in canines of the Puducherry region.