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- Title
Resting energy expenditure and body composition of Labrador Retrievers fed high fat and low fat diets.
- Authors
Yoo, S.; Ramsey, J. J.; Havel, P. J.; Jones, P. G.; Fascetti, A. J.
- Abstract
A high dietary fat intake may be an important environmental factor leading to obesity in some animals. The mechanism could be either an increase in caloric intake and/or a decrease in energy expenditure. To test the hypothesis that high fat diets result in decreased resting energy expenditure (REE), we measured REE using indirect calorimetry in 10-adult intact male Labrador Retrievers, eating weight-maintenance high-fat (HF, 41% energy, average daily intake: 8018 ± 1247 kJ/day, mean ± SD) and low-fat (LF, 14% energy, average daily intake: 7331 ± 771 kJ/day) diets for a 30-day period. At the end of each dietary treatment, body composition measurements were performed using dual-energy X-ray absorptiometry. The mean ± SD REE was not different between diets (4940 ± 361 vs. 4861 ± 413 kJ/day on HF and LF diets respectively). Measurements of fat-free mass (FFM) and fat mass (FM) also did not differ between diets (FFM: 26.8 ± 2.3 kg vs. 26.3 ± 2.5 kg; FM: 3.0 ± 2.3 vs. 3.1 ± 1.5 kg on HF and LF diets respectively). In summary, using a whole body calorimeter, we found no evidence of a decrease in REE or a change in body composition on a HF diet compared with LF diet.
- Subjects
OBESITY; ANIMAL nutrition; LABRADOR retriever; LOW-fat diet; BODY composition
- Publication
Journal of Animal Physiology & Animal Nutrition, 2006, Vol 90, Issue 5/6, p185
- ISSN
0931-2439
- Publication type
Article
- DOI
10.1111/j.1439-0396.2005.00588.x