Abstract
Normal flora in the canine oral cavity was studied using 30 male and 20 female dogs having no periodontics. For the primary isolation, nine different kinds of selective media for 1 family and 8 genera of bacteria were used. The dogs revealed a high incidence of Staphylococcus (80.0%), Streptococcus (74.0%) and Fusobacterium (66.0%). Bacteroides and Enterobacteriaceae (Escherichia, Proteus, Klebsiella) were also isolated. Above mentioned four genera were found to be common in 47 dogs. In these cases, the isolation rate of cocci was rather low and that of obligatory anaerobic rods was rather high. The recovery rate of Veillonella (26.0%) was similar to that of Lactobacillus (22.0%). Candida (14.0%) and Pasteurella (10.0%) were isolated less frequently. The recovery rate of Pasteurella was almost the same as previously reported.
Approximately 90% of the isolates except Candida strains, showed sensitivity against Chloramphenicol and Aminobenzylpenicillin. On an average, 85.3% of the isolates exhibited sensitivities to penicillin/cepharosupolin. The isolates also showed a 75% sensitivity to macrolide and 71.5% to aminoglycoside analogs. The average percentage of sensitive strains of Enterobacteriaceae to antibiotics revealed the lowest average sensitivity rate of 28.7%, except for Naridixic acid.
