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Titolo:
Day length has a major effect on the response of protein synthesis rates to feeding in growing Japanese quail
Autore:
Boon, P; Watt, PW; Smith, K; Visser, GH;
Indirizzi:
Univ Groningen, Zool Lab, NL-9750 AA Haren, Netherlands Univ Groningen Haren Netherlands NL-9750 AA L-9750 AA Haren, Netherlands Univ Dundee, Dept Anat & Physiol, Dundee DD1 4HN, Scotland Univ Dundee Dundee Scotland DD1 4HN & Physiol, Dundee DD1 4HN, Scotland Univ Groningen, Ctr Isotope Res, Groningen, Netherlands Univ Groningen Groningen Netherlands sotope Res, Groningen, Netherlands
Titolo Testata:
JOURNAL OF NUTRITION
fascicolo: 2, volume: 131, anno: 2001,
pagine: 268 - 275
SICI:
0022-3166(200102)131:2<268:DLHAME>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
WHOLE-BODY; FOOD-INTAKE; AMINO-ACIDS; VENTRICULAR MUSCLE; BROILER-CHICKENS; IN-VIVO; TISSUE; DEGRADATION; TURNOVER; GROWTH;
Keywords:
stable isotopes; protein synthesis; feeding; starvation; birds;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Boon, P RIKILT, POB 230, NL-6708 PD Wageningen, Netherlands RIKILT POB 230Wageningen Netherlands NL-6708 PD gen, Netherlands
Citazione:
P. Boon et al., "Day length has a major effect on the response of protein synthesis rates to feeding in growing Japanese quail", J NUTR, 131(2), 2001, pp. 268-275

Abstract

We investigated the effect of day length on mixed protein fractional synthesis rates (K-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 shortday length, 6 h light/18 h dark (SDL), with free access to food during thelight period. Rates of protein synthesis were measured by a flooding dose of L-[1-C-13]leucine. In both groups, we measured K-S 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 were also measured in LDL quail starved for 18 h and refed for 2 h. SDL chicks were smaller and had lower tissue weights at 2 wk of age than did LDL chicks (P < 0.05). Starvation led to a lower rate of protein synthesis in those animals starved for 18 h. Food availability after starvation for 18 h induced a significant rise in tissue protein synthesis in both SDL and LDL quail (P < 0.05). This increase was absent in LDL quail after a 6-h starvation period. There was an increase in K-S to ad hoc changes in food supply. By determining the daily period in which feeding can occur, day length has a major effect on protein synthesis rates. This effect will determine the overall growth chicks are able to achieve that have been subjected to different day lengths.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 12:49:30