OBJECTIVE To determine whether consumption of a single dental treat with specific mechanical properties and active ingredients would provide a 24-hour effect on dental plaque bacteria and halitosis in dogs.
ANIMALS 10 dogs of various breeds from a privately owned colony that had received routine dental scaling and polishing 4 weeks before the study began.
PROCEDURES Dogs were randomly assigned to receive 1 placebo or dental treat first. A 4-week washout period was provided, and then dogs received the opposite treatment. Oral plaque and breath samples were collected before and 0.5, 3, 12, and 24 hours after treat consumption. Volatile sulfur compounds (VSCs) concentration was measured in breath samples. Total aerobic, total anaerobic, Porphyromonas gulae, Prevotella intermedia–like, Tannerella forsythia, and Fusobacterium nucleatum bacterial counts (measured via bacterial culture) and total live bacterial counts, total live and dead bacterial counts, and bacterial vitality (measured via quantitative real-time PCR assay) were assessed in plaque samples.
RESULTS Compared with placebo treat consumption, dental treat consumption resulted in a significant decrease in breath VSCs concentration and all plaque bacterial counts, without an effect on bacterial vitality. Effects of the dental treat versus the placebo treat persisted for 12 hours for several bacterial counts and for 24 hours for breath VSCs concentration.
CONCLUSIONS AND CLINICAL RELEVANCE Although clinical benefits should be investigated in larger scale, longer-term studies, results of this study suggested that feeding the evaluated dental treat may help to decrease oral bacterial growth in dogs for 12 hours and oral malodor for 24 hours. A feeding interval of 12 hours is therefore recommended.
Objective—To compare in overweight cats the effects of feeding moderate-energy diets with moderate fat content but with saturated fat (beef tallow), saturated fat plus citrus flavanones, or monounsaturated fat (olive oil) on plasma lipids and urinary F2-isoprostane concentrations.
Animals—20 overweight cats with mean ± SD body weight of 5.2 ± 0.2 kg and mean body condition score of 7.8 ± 0.2 (9-point scale).
Procedures—Body weight, plasma total cholesterol and triacylglycerol concentrations, and urinary F2-isoprostane concentration (as marker of oxidative stress) were measured at the beginning of the study, when the cats were fed a maintenance diet, and after 1, 3, and 5 months of consuming test diets.
Results—In overweight cats, citrus flavanones supplementation of the saturated fat diet was associated with lower energy intake and with lower plasma lipids and urinary F2-isoprostane concentrations than in cats fed the saturated fat alone. Monounsaturated fat feeding resulted in lower food intake than in cats fed saturated fat. However, plasma lipids concentrations remained within reference limits throughout the study.
Conclusions and Clinical Relevance—Although the clinical relevance of these findings is unknown, the significant differences detected indicated that lower energy intake with citrus flavanones supplementation or with substitution of saturated fat for monounsaturated fat could be good strategies for decreasing plasma lipids concentration and oxidative stress in overweight cats, even before considerable loss of body weight is observed. (Am J Vet Res 2010;71:1039–1044)