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Effect of increased dietary protein and decreased dietary carbohydrate on performance and body composition in racing Greyhounds.
Am J Vet Res 2001; 62(3):440-7AJ

Abstract

OBJECTIVE

To determine effects of increased dietary protein and decreased dietary carbohydrate on hematologic variables, body composition, and racing performance in Greyhounds.

ANIMALS

8 adult Greyhounds.

PROCEDURE

Dogs were fed a high-protein (HP; 37% metabolizable-energy [ME] protein, 33% ME fat, 30% ME carbohydrate) or moderate-protein (MP; 24% ME protein, 33% ME fat, 43% ME carbohydrate) extruded diet for 11 weeks. Dogs subsequently were fed the other diet for 11 weeks (crossover design). Dogs raced a distance of 500 m twice weekly. Rectal temperature, hematologic variables before and after racing, plasma volume, total body water, body weight, average weekly food intake, and race times were measured at the end of each diet period.

RESULTS

When dogs were fed the MP diet, compared with the HP diet, values (mean +/- SD) differed significantly for race time (32.43 +/- 0.48 vs 32.61 +/- 0.50 seconds), body weight (32.8 +/- 2.5 vs 32.2 +/- 2.9 kg), Hct before (56 +/- 4 vs 54 +/- 6%) and after (67 +/- 3 vs 64 +/- 8%) racing, and glucose (131 +/- 16 vs 151 +/- 27 mg/dl) and triglyceride (128 +/- 17 vs 104 +/- 28 mg/dl) concentrations after racing.

CONCLUSIONS AND CLINICAL RELEVANCE

Greyhounds were 0.18 seconds slower (equivalent to 0.08 m/s or 2.6 m) over a distance of 500 m when fed a diet with increased protein and decreased carbohydrate. Improved performance attributed to feeding meat to racing Greyhounds apparently is not attributable to increased dietary protein and decreased dietary carbohydrate.

Authors+Show Affiliations

Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville 32610-0126, USA.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11277211

Citation

Hill, R C., et al. "Effect of Increased Dietary Protein and Decreased Dietary Carbohydrate On Performance and Body Composition in Racing Greyhounds." American Journal of Veterinary Research, vol. 62, no. 3, 2001, pp. 440-7.
Hill RC, Lewis DD, Scott KC, et al. Effect of increased dietary protein and decreased dietary carbohydrate on performance and body composition in racing Greyhounds. Am J Vet Res. 2001;62(3):440-7.
Hill, R. C., Lewis, D. D., Scott, K. C., Omori, M., Jackson, M., Sundstrom, D. A., ... Butterwick, R. F. (2001). Effect of increased dietary protein and decreased dietary carbohydrate on performance and body composition in racing Greyhounds. American Journal of Veterinary Research, 62(3), pp. 440-7.
Hill RC, et al. Effect of Increased Dietary Protein and Decreased Dietary Carbohydrate On Performance and Body Composition in Racing Greyhounds. Am J Vet Res. 2001;62(3):440-7. PubMed PMID: 11277211.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of increased dietary protein and decreased dietary carbohydrate on performance and body composition in racing Greyhounds. AU - Hill,R C, AU - Lewis,D D, AU - Scott,K C, AU - Omori,M, AU - Jackson,M, AU - Sundstrom,D A, AU - Jones,G L, AU - Speakman,J R, AU - Doyle,C A, AU - Butterwick,R F, PY - 2001/3/30/pubmed PY - 2001/8/3/medline PY - 2001/3/30/entrez SP - 440 EP - 7 JF - American journal of veterinary research JO - Am. J. Vet. Res. VL - 62 IS - 3 N2 - OBJECTIVE: To determine effects of increased dietary protein and decreased dietary carbohydrate on hematologic variables, body composition, and racing performance in Greyhounds. ANIMALS: 8 adult Greyhounds. PROCEDURE: Dogs were fed a high-protein (HP; 37% metabolizable-energy [ME] protein, 33% ME fat, 30% ME carbohydrate) or moderate-protein (MP; 24% ME protein, 33% ME fat, 43% ME carbohydrate) extruded diet for 11 weeks. Dogs subsequently were fed the other diet for 11 weeks (crossover design). Dogs raced a distance of 500 m twice weekly. Rectal temperature, hematologic variables before and after racing, plasma volume, total body water, body weight, average weekly food intake, and race times were measured at the end of each diet period. RESULTS: When dogs were fed the MP diet, compared with the HP diet, values (mean +/- SD) differed significantly for race time (32.43 +/- 0.48 vs 32.61 +/- 0.50 seconds), body weight (32.8 +/- 2.5 vs 32.2 +/- 2.9 kg), Hct before (56 +/- 4 vs 54 +/- 6%) and after (67 +/- 3 vs 64 +/- 8%) racing, and glucose (131 +/- 16 vs 151 +/- 27 mg/dl) and triglyceride (128 +/- 17 vs 104 +/- 28 mg/dl) concentrations after racing. CONCLUSIONS AND CLINICAL RELEVANCE: Greyhounds were 0.18 seconds slower (equivalent to 0.08 m/s or 2.6 m) over a distance of 500 m when fed a diet with increased protein and decreased carbohydrate. Improved performance attributed to feeding meat to racing Greyhounds apparently is not attributable to increased dietary protein and decreased dietary carbohydrate. SN - 0002-9645 UR - https://www.unboundmedicine.com/medline/citation/11277211/Effect_of_increased_dietary_protein_and_decreased_dietary_carbohydrate_on_performance_and_body_composition_in_racing_Greyhounds_ L2 - https://medlineplus.gov/carbohydrates.html DB - PRIME DP - Unbound Medicine ER -