Prevalence of Clostridium sPP. in diarrhoeic and healthy dogs ...

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Ann. Fac. Medic. Vet. di Parma (Vol. XXVII, 2007) pag. 143 - pag. 156Figure 2: Typical colonies of Clostridium difficile that could be greyish or whitishcolour, opaque or lucid, flat, circular or occasionally rhizoid and non-haemolyticResultsSixty-two fecal samples were positive for Clostridium spp. presence(62/95 samples, 65.3%). The other 33 samples were negative for Clostridium spp.Eigthy-nine Clostridium spp. were isolated and identified from the 62 positive fecalspecimens. The most common Clostridium detected was Clostridium perfringens(14/89 strains, 15.7%), followed by C. bifermentans (12/89, 13.5%), C. clostridiiforme(12/89, 13.5%), C. fallax (11/89, 12.4%), C. beijerinckii/butyricum (10/89, 11.2%),C. difficile (10/89, 11.2%), and C. septicum (8/89, 9.0%). Other clostridia isolatedwere: 2 strains of C. paraputrificum, 2 of C. glycolicum and 2 of C. tyrobutyricum(2/89, 2.3%), 1 strain of C. tetani, 1 of C. botulinum, 1 of C. innocuum, 1 of C. tertium, 1of C. sporogenes and 1 of C. histolyticum (1/89, 1.1%). Different species of clostridiawere isolated in the same fecal sample. In Table 1, the prevalence of Clostridium spp.in fecal samples of diarrhoeic and non-diarrhoeic dogs is summarized.Concerning C. perfringens, 6 of the 14 positive fecal samples (42.9%)belonged to dogs with enteritis. In one case, the dog, affected by megaesophagus,was subjected to antibiotic therapy for enteritis and C. difficile together withC. perfringens were also isolated. The other 8 samples (57.1%) belonged to healthydogs (Table 2).In the case of C. difficile isolation, 8 of the 10 canine fecal samples (80.0%)belonged to diarrhoeic dogs, of whom 4 were subjected to antibiotic treatment and theenteritis followed the therapy. From one dog (megaesophagus) treated for enteritis,C. perfringens together with C. difficile were isolated. Three dogs were not treated.Another dog, admitted to the Didactic Veterinary Hospital, was subjected to antibiotictreatment but was non-diarrhoeic. One dog was an healthy dog (Table 3).150
Ann. Fac. Medic. Vet. di Parma (Vol. XXVII, 2007) pag. 143 - pag. 156Table 1: Prevalence of Clostridium spp. in 95 fecal samples of diarrhoeic andhealthy dogs in the period 20 th July 2006 - 20 th March 2007No. fecal %samplespositiveClostridium perfringens 10 16.1Clostridium bifermentans 6 9.7Clostridium fallax 6 9.7Clostridium septicum 4 6.44Clostridium clostridiiforme 3 4.83Clostridium difficile 2 3.22Clostridium beijerinckii/butyricum 1 1.61Clostridium paraputrificum 1 1.61Clostridium glycolicum 1 1.61Clostridium tyrobutyricum 1 1.61Clostridium tetani 1 1.61Clostridium botulinum 1 1.61Clostridium histolyticum 1 1.61Clostridium beijerinckii/butyricum Clostridium clostridiiforme 3 4.83Clostridium difficile Clostridium bifermentans 3 4.83Clostridium perfringens Clostridium beijerinckii/butyricum 2 3.22Clostridium difficile Clostridium perfringens 1 1.61Clostridium tertium Clostridium septicum 1 1.61Clostridium septicum Clostridium beijerinckii/butyricum 1 1.61Clostridium tyrobutyricum Clostridium innocuum 1 1.61Clostridium clostridiiforme Clostridium fallax 1 1.61Clostridium glycolicum Clostridium septicum 1 1.61Clostridium fallax Clostridium bifermentans 1 1.61Clostridium clostridiiforme Clostridium paraputrificum 1 1.61Clostridium difficile Clostridium beijerinckii/butyricum 1 1.61Clostridium fallax Clostridium septicum 1 1.61Clostridium difficile Clostridium bifermentans Clostridium 1 1.61clostridiiformeClostridium difficile Clostridium sporogenes 1 1.61Clostridium bifermentans Clostridium fallax Clostridium 1 1.61beijerinckii/butyricumClostridium beijerinckii/butyricum Clostridium clostridiiforme 1 1.61Clostridium fallaxClostridium perfringens Clostridium clostridiiforme 1 1.61Clostridium difficile Clostridium clostridiiforme 1 1.61Total 62151
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Prevalence of Clostridium sPP. in diarrhoeic and healthy dogs ...

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