Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Metabolic evidence of a 'rumen bypass' or a 'ruminal escape' of nutrients in roe deer (Capreolus capreolus)
Autore:
Rowell-Schafer, A; Lechner-Doll, M; Hofmann, RR; Streich, WJ; Guven, B; Meyer, HHD;
Indirizzi:
Inst Zoo Biol & Wildlife Res, D-10315 Berlin, Germany Inst Zoo Biol & Wildlife Res Berlin Germany D-10315 0315 Berlin, Germany Kafkas Univ, Fizyoloji Bilim Dali, Anim Res Ctr, Vet Fak, TR-36040 Kars, Turkey Kafkas Univ Kars Turkey TR-36040 Res Ctr, Vet Fak, TR-36040 Kars, Turkey Tech Univ Munich, Res Ctr Dairy & Food, Inst Physiol, D-85350 Freising, Germany Tech Univ Munich Freising Germany D-85350 iol, D-85350 Freising, Germany
Titolo Testata:
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR AND INTEGRATIVE PHYSIOLOGY
fascicolo: 2, volume: 128, anno: 2001,
pagine: 289 - 298
SICI:
1095-6433(200102)128:2<289:MEOA'B>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
NA+/GLUCOSE COTRANSPORTER SGLT1; SODIUM-GLUCOSE COTRANSPORTER; CARBOHYDRASE ACTIVITY; SMALL-INTESTINE; FATTY-ACIDS; DIET; EXPRESSION; ADAPTATION; AMYLASE; TISSUE;
Keywords:
concentrate selectors; enzyme activities; feeding type; roe deer; rumen bypass; ruminal escape; ruminants; polyunsaturated fatty acids; sodium-dependent glucose co-transporter;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Rowell-Schafer, A Eichhornstr 10, D-15806 Zossen, Germany Eichhornstr 10 Zossen Germany D-15806 Zossen, Germany
Citazione:
A. Rowell-Schafer et al., "Metabolic evidence of a 'rumen bypass' or a 'ruminal escape' of nutrients in roe deer (Capreolus capreolus)", COMP BIOC A, 128(2), 2001, pp. 289-298

Abstract

As short chain fatty acids produced in the forestomach are insufficient tosatisfy the energy requirements of the concentrate selecting roe deer (Capreolus capreolus), it is proposed that these animals may have other mechanisms to avoid energy losses due to microbial fermentation. Nutrients bypassing down the ventricular groove (rumen bypass) or ruminal escape of unfermented or partially fermented nutrients may be two alternatives. As metabolic evidence for incomplete fermentation in the forestomach we investigated: (1) the abundance of the sodium-dependent glucose co-transporter (SGLT1) in the duodenum; (2) enzyme activities of maltase, saccharase and or-amylase induodenal and pancreatic tissue: and (3) the proportion of essential, polyunsaturated fatty acids in depot fat samples from ruminants of different feeding type and - for comparison - from animals with a simple stomach. The high abundance of SGLT1, high enzyme activity and the high proportion of polyunsaturated fatty acids in the concentrate selecting ruminants support the hypothesis of rumen bypass or ruminal escape of nutrients in roe deer and reflect differences in nutrient utilization by ruminants that belong to different feeding types. (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 29/10/20 alle ore 21:15:34