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Article: Day length has a major effect on the response of protein synthesis rates to feeding in growing Japanese quail
- Article from:
- The Journal of Nutrition
- Article date:
- February 1, 2001
- Author:
CopyrightCopyright American Institute of Nutrition Feb 2001. Provided by ProQuest LLC. (Hide copyright information)
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Day Length Has a Major Effect on the Response of Protein Synthesis Rates to Feeding in Growing Japanese Quail1
ABSTRACT We investigated the effect of day length on mixed protein fractional synthesis rates (K^sub s^ in 14- and 21-d-old Japanese quail (Coturnix c. japonica) habituated to either a long day length, 18 h light/6 h dark (LDL), or short day length, 6 h light/18 h dark (SDL), with free access to food during the light period. Rates of protein synthesis were measured by a flooding dose of L-[1-^sup 13^leucine. In both groups, we measured Ks of pectoral muscle, liver and heart after an overnight period of food deprivation and after 2-h food access at dawn. Rates of protein synthesis ...