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  • 标题:Effects of Two Different Levels of Dietary Protein on Body Composition and Protein Nutritional Status of Growing Rats
  • 本地全文:下载
  • 作者:Julio Tirapegui ; Sandra Maria Lima Ribeiro ; Ivanir Santana de Oliveira Pires
  • 期刊名称:Nutrients
  • 电子版ISSN:2072-6643
  • 出版年度:2012
  • 卷号:4
  • 期号:9
  • 页码:1328-1337
  • DOI:10.3390/nu4091328
  • 语种:English
  • 出版社:MDPI Publishing
  • 摘要: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.
  • 关键词:dietary protein; protein nutritional status; growth; body composition
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