Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
NUTRITIONAL EFFECTS ON NEUROTRANSMITTER METABOLISM IN THE BROILER CHICKEN
Autore:
ROSEBROUGH RW;
Indirizzi:
USDA ARS,BELTSVILLE AGR RES CTR,INST LIVESTOCK & POULTRY SCI,NONRUMINANT ANIM NUTR LAB BELTSVILLE MD 20705
Titolo Testata:
Comparative biochemistry and physiology. Part A, Physiology
fascicolo: 3, volume: 107, anno: 1994,
pagine: 573 - 580
SICI:
1096-4940(1994)107:3<573:NEONMI>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYMPATHETIC NERVOUS-SYSTEM; RAT; TISSUE; DIET;
Keywords:
NUTRITIONAL EFFECTS; NEUROTRANSMITTER METABOLISM; ALPHA-METHYL-DL-RHO-TYROSINE; NOREPINEPHRINE; DOPAMINE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
R.W. Rosebrough, "NUTRITIONAL EFFECTS ON NEUROTRANSMITTER METABOLISM IN THE BROILER CHICKEN", Comparative biochemistry and physiology. Part A, Physiology, 107(3), 1994, pp. 573-580

Abstract

Two experiments were conducted with broiler chickens to determine various nutritional effects on neurotransmitter metabolism. In Experiment1, 21-day old chickens were fasted for 24 hr, fed on an ad libitum basis, fed a diet containing 450 g crude protein/kg (high-protein) or fed a diet containing 80 g crude protein/kg (high carbohydrate) to examine nutritional regimens that may alter neural factors regulating growth. Chickens were injected (250 mg/kg BWt) with a tyrosine hydroxylase inhibitor, alpha-methyl-DL-rho-tyrosine (AMPT), to inhibit catecholamine synthesis and to estimate turnover constants as functions of these treatments. In Experiment 2, 7-day old chickens were fed diets containing 120, 180, 240 and 300 g crude protein and 1 mg T-3/kg diet for 21 days to determine the effects of both dietary protein and thyroid status on catecholamine concentrations. Norepinephrine (NE) and dopamine (DA) in the brains and NE and DA in the hearts and pancreases were separated by HPLC and determined by electrochemical detection. Fractional turnover of DA in the brains of both fed and fasted chickens was equalbut was over twice as great as that of NE. Fractional NE turnover in hearts of both fed and fasted chickens was 12.3%/hr although fractional NE turnover in pancreas was greater (P < 0.05) in fasted than in fedchickens (9.0%/hr vs 5.1%/hr). These same rate constants were also seen in brains of chickens fed high-carbohydrate or high-protein diets. In contrast, a protein diet increase pancreatic and cardiac NE turnover compare to a high-carbohydrate diet.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 02:35:52