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Ciência Rural

On-line version ISSN 1678-4596

Abstract

FEITOSA, Mariana Lorenção et al. Glucose and lipid profile of obese dogs fed with different starchy sources. Cienc. Rural [online]. 2016, vol.46, n.12, pp.2189-2194. ISSN 1678-4596.  http://dx.doi.org/10.1590/0103-8478cr20151327.

Among the health disorders caused by obesity in dogs stand out hyperglycemia and hyperlipidemia. Glycemic responses are directly related to the amount and type of starch. Thus, this study aimed to evaluate the effect of different sources of starch on glycemic and lipid levels in obese dogs. These dogs were distributed in a completely randomized design in a factorial 3x2x2 (three sources starchy - corn (60%), sorghum (60%) and corn: sorghum (30:30%), two breeds - Beagle and Dachshund and males and females. After 28 days of experiment, dogs fed with corn had higher amounts of glucose (93.79A mg dL-1) (P<0.05) compared with diets containing sorghum (88.00Bmg dL-1) and corn: sorghum (88.75B mg dL-1) (P>0.05). Thus, dogs that consumed corn had a higher glycemic peak in a shorter time compared with dogs that ingested sorghum. Furthermore, the dogs fed with diet containing sorghum showed lower levels of fructosamine that dogs that ingested corn diet (P<0.05) demonstrating that the diet containing sorghum maintained blood glucose over a longer time period that reduces the fluctuation of glucose in dogs. At 56 and 112 days of the experiment, a positive correlation between glucose levels and body weight (P<0.05) was also observed. At 28, 56, 84 and 112 days, Beagle dogs showed higher serum concentrations of total cholesterol compared with Dachshund dogs (P<0.05). It was concluded that the starchy source and breed can interfere with metabolic rates of obese dogs.

Keywords : blood glucose; lipid profile; obesity; canine.

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