Abstract
Corynebacterium renale is a common inhabitant of the the vulva, vagina and prepuce of apparently normal cattle, but also an opportunistic pathogen and the cause of cystitis and purulent pyelonephritis in cows. In this paper, we show the isolation of C. renale from the urine of cows with clinical cystitis, colonial, microscopic and biochemical characteristics of the isolates, relevant data on virulence factors, clinical manifestations of diseaseand basic principles of therapy.
Highlights
Bovine cystitis is an inflammatory process of the urinary bladder
The causative agents are most commonly bacteria which are an integral part of the microbiota of the genital and gastrointestinal tract, such as: Escherichia coli, Corynebacterium renale group (Corynebacterium renale, cystidis and pilosum), Trueperella pyogenes, rarely Staphylococcus spp., Streptococcus spp., Proteus spp., Klebsiella spp., (Yeruham et al, 2006; The Merck Manual, 2014)
Treatment should begin as early as possible, before the development of serious tissue damage. This is the only case of C. renale cystitis in cows which was etiologically confirmed in the laboratory for clinical bacteriology of the Scientific Veterinary Institute “Novi Sad” for a period of 10 years
Summary
Bovine cystitis is an inflammatory process of the urinary bladder. The causative agents are most commonly bacteria which are an integral part of the microbiota of the genital and gastrointestinal tract, such as: Escherichia coli, Corynebacterium renale group (Corynebacterium renale, cystidis and pilosum), Trueperella (formerly Arcanobacterium) pyogenes, rarely Staphylococcus spp., Streptococcus spp., Proteus spp., Klebsiella spp., (Yeruham et al, 2006; The Merck Manual, 2014). The C. renale is the cause for cystitis and pyelonephritis in cows, ulcerative (enzootic) balanoposthitis in sheep and goats and osteomyelitis in goats (Markey et al, 2013; Quin et al, 2013). Identification criteria for isolates: a pale yellow color of colony, absence of haemolysis, absence of growth on the MacConkey agar, coryneform Gram-positive rods, oxidase negative, catalase positive, strong urease production, growth in broth at pH 5.4, glucose fermentation, non acid production from xylose and negative aesculin hydrolysis.
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