Nutrients 2012, 4(9), 1328-1337; doi:10.3390/nu4091328
Article

Effects of Two Different Levels of Dietary Protein on Body Composition and Protein Nutritional Status of Growing Rats

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Received: 9 August 2012; in revised form: 28 August 2012 / Accepted: 11 September 2012 / Published: 20 September 2012
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: This study aimed to investigate the effect of a high-protein diet on growth, body composition, and protein nutritional status of young rats. Newly-weaned Wistar rats, weighing 45–50 g, were distributed in two experimental groups, according to their diets, which contained 12% (G12) or 26% protein (G26), over a period of 3 weeks. The animals were euthanized at the end of this period and the following analyses were performed: chemical composition of the carcass, proteoglycan synthesis, IGF-I concentration (serum, muscle and cartilage), total tissue RNA, protein concentration (muscle and cartilage) and protein synthesis (muscle and cartilage). The high-protein diet was found to result in a higher fat-free mass and lower fat mass in the carcass, with no difference in growth or protein nutritional status.
Keywords: dietary protein; protein nutritional status; growth; body composition
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MDPI and ACS Style

Tirapegui, J.; Ribeiro, S.M.L.; Pires, I.S.O.; Rogero, M.M. Effects of Two Different Levels of Dietary Protein on Body Composition and Protein Nutritional Status of Growing Rats. Nutrients 2012, 4, 1328-1337.

AMA Style

Tirapegui J, Ribeiro SML, Pires ISO, Rogero MM. Effects of Two Different Levels of Dietary Protein on Body Composition and Protein Nutritional Status of Growing Rats. Nutrients. 2012; 4(9):1328-1337.

Chicago/Turabian Style

Tirapegui, Julio; Ribeiro, Sandra Maria Lima; Pires, Ivanir Santana de Oliveira; Rogero, Marcelo Macedo. 2012. "Effects of Two Different Levels of Dietary Protein on Body Composition and Protein Nutritional Status of Growing Rats." Nutrients 4, no. 9: 1328-1337.

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