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Titolo:
TRUE DIGESTIBILITY OF PROTEIN IN THE SMALL-INTESTINE AND THE HIND GUTOF COWS MEASURED WITH THE MOBILE BAG TECHNIQUE USING N-15-LABELED ROUGHAGE
Autore:
JAROSZ L; HVELPLUND T; WEISBJERG MR; JENSEN BB;
Indirizzi:
NATL INST ANIM SCI,RES CTR FOULM,DEPT RES CATTLE & SHEEP,PO 39 DK-8830 TJELE DENMARK NATL INST ANIM SCI,RES CTR FOULM,DEPT RES CATTLE & SHEEP,PO 39 DK-8830 TJELE DENMARK NATL INST ANIM SCI,RES CTR FOULUM,DEPT ANIM PHYSIOL & BIOCHEM DK-8830TJELE DENMARK
Titolo Testata:
Acta agriculturae Scandinavica. Section A, Animal science
fascicolo: 3, volume: 44, anno: 1994,
pagine: 146 - 151
SICI:
0906-4702(1994)44:3<146:TDOPIT>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
NITROGEN; MICROORGANISMS; CONTAMINATION; RUMINANTS; DIGESTION;
Keywords:
INTESTINAL DIGESTIBILITY; RUMINANTS; LABELED NITROGEN; BACTERIAL CONTAMINATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
L. Jarosz et al., "TRUE DIGESTIBILITY OF PROTEIN IN THE SMALL-INTESTINE AND THE HIND GUTOF COWS MEASURED WITH THE MOBILE BAG TECHNIQUE USING N-15-LABELED ROUGHAGE", Acta agriculturae Scandinavica. Section A, Animal science, 44(3), 1994, pp. 146-151

Abstract

Using the mobile bag technique the true small intestinal digestibilities of DM, NDF and N were determined in ten samples of whole plant andstraw from pea and barley and ryegrass hay labelled with N-15 and harvested at different stages of maturity. The bags were preincubated in a pepsin-HCl solution, inserted into the duodenum of dairy cows and recovered from the terminal ileum or from the faeces. The digestibility in the lower gut was also estimated. The N disappearance was higher inbags recovered from faeces than from the ileum for most of the feeds tested; however differences were significant only in pea and barley straw. The disappearance of Kjeldahl N (N(K)) Underestimated true N digestibility (N-15) at both recovery sites. N(K) digestibility measured using bags recovered from the faeces generally agreed with estimates ofN-15 digestibility measured using bags recovered from the ileum. It is concluded that the mobile bag technique provides a true measure of intestinal nitrogen digestion.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 01:41:14