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Titolo:
Serum leptin levels in cattle with different nutritional conditions
Autore:
Sansinanea, AS; Cerone, SI; Zonco, I; Garcia, C; Auza, N;
Indirizzi:
UNICEN, Fac Ciencias Vet, Dept Fisiopatol, RA-7000 Tandil, Argentina UNICEN Tandil Argentina RA-7000 pt Fisiopatol, RA-7000 Tandil, Argentina
Titolo Testata:
NUTRITION RESEARCH
fascicolo: 7, volume: 21, anno: 2001,
pagine: 1045 - 1052
SICI:
0271-5317(200107)21:7<1045:SLLICW>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEUROPEPTIDE-Y; OBESE GENE; MICE;
Keywords:
leptin; status energetic; steers;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Sansinanea, AS UNICEN, Fac Ciencias Vet, Dept Fisiopatol, Pinto 399, RA-7000 Tandil, Argentina UNICEN Pinto 399 Tandil Argentina RA-7000 andil, Argentina
Citazione:
A.S. Sansinanea et al., "Serum leptin levels in cattle with different nutritional conditions", NUTR RES, 21(7), 2001, pp. 1045-1052

Abstract

The role of leptin as an energetic state indicator in cattle was evaluatedcorrelating different nutritional conditions and serum leptin levels. Two experiments were developed. Experiment I: Polled Hereford heifers were fed in optimum conditions and assigned randomly to one of three treatment diets: grazing, grazing plus supplementation and feedlot, Experiment II: cattle were subjected to feed restriction Oil. Serum leptin levels were measured at pre and post-feeding moments. Using serum free fatty acid (FFA), beta -OHButyrate (beta -OHB) and protein concentration as serum energetic indicators in both experiments. In experiment I leptin values were significantly different between pre and post-feeding moments, similar differences were found among groups when the pre-feeding and post-feeding values were compared. These differences may be considered as changes associated to the control offood intake. In experiment II, the serum leptin levels in Group R were significantly lower. The poor energetic status of animals from group R was demonstrated by the serum FFA, beta -OHB and protein concentrations. These results suggest that the energetic status of animals is correlated with the serum leptin levels, tending to maintain the energetic homeostasis, (C) 2001 Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/01/20 alle ore 21:27:30