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Titolo:
DIETARY LEVEL AND SOURCE OF NEUTRAL DETERGENT FIBER AND ILEAL ENDOGENOUS NITROGEN FLOW IN PIGS
Autore:
SCHULZE H; VANLEEUWEN P; VERSTEGEN MWA; VANDENBERG JWO;
Indirizzi:
AGR UNIV WAGENINGEN,DEPT ANIM NUTR,HAAGSTEEG 4 6708 PM WAGENINGEN NETHERLANDS TNO,INST ANIM NUTR & PHYSIOL,ILOB 6700 AA WAGENINGEN NETHERLANDS UNIV HOSP DIJKZIGT,DEPT INTERNAL MED 2 3015 GD ROTTERDAM NETHERLANDS
Titolo Testata:
Journal of animal science
fascicolo: 2, volume: 73, anno: 1995,
pagine: 441 - 448
SICI:
0021-8812(1995)73:2<441:DLASON>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
N-15-ISOTOPE DILUTION TECHNIQUE; AMINO-ACID DIGESTIBILITIES; PROTEIN-FREE DIETS; GROWING PIGS; WHEAT BRAN; DISTAL ILEUM; DRY-MATTER; EXCRETION; ABSORPTION; DIGESTION;
Keywords:
PIG; NEUTRAL DETERGENT FIBER; ILEAL DRY MATTER; ILEAL ENDOGENOUS NITROGEN; ISOTOPE DILUTION METHOD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
H. Schulze et al., "DIETARY LEVEL AND SOURCE OF NEUTRAL DETERGENT FIBER AND ILEAL ENDOGENOUS NITROGEN FLOW IN PIGS", Journal of animal science, 73(2), 1995, pp. 441-448

Abstract

Two experiments were conducted to study the effect of dietary level and source of neutral detergent fiber (NDF) on ileal dry matter flow and on total and endogenous N flow at the terminal ileum. Twenty-two crossbred 6-wk-old castrated male pigs with an average BW of 9 kg were used. The pigs were fitted with a post-valvular T-cecal cannula and two indwelling blood catheters. During the experimental period of 10 d, the pigs were 11 wk of age with an average BW of 14 kg. They were fed 2.6 times their maintenance requirement for energy of a corn starch-based, semisynthetic diet. The diets contained 178 g of soy isolate/kg as the only source of nitrogen (N). In diets of Exp. 1, purified NDF was included at 0 and 200 g/kg of feed at the expense of glucose. The diets of Exp. 2 contained one of the three different NDF sources (purifiedNDF, wheat bran, or sunflower hulls) at a level of 144 g of NDF/kg ofDM. The purified NDF (pNDF) was isolated from the same batch as the wheat bran (WB) used in Exp. 2. The endogenous N flow at the terminal ileum of these pigs was determined with the N-15-isotope dilution method. The inclusion of NDF in the experimental diets increased (P < .05) the daily DM flow at the terminal ileum. Dry matter flow was increased.697 g for every g/kg increase in NDF in the diet. The different sources of dietary NDF gave similar (P > .05) ileal DM flows. The inclusion of pNDF (Exp. I) increased (P < .05) the ileal flow of total N by 1.884 g/kg of dietary DM intake. This increase is composed of 59% endogenous and 41% exogenous N. With the inclusion of various NDF sources (Exp. 2), similar (P > .05) amounts of endogenous N passing the terminalileum were obtained. Calculated from results of Exp. 1 and 2, endogenous ileal N flow was increased .008 g for every gram/kilogram increasein NDF in the diet. The total ileal N flow, however, varied (P < .05)with the inclusion of various NDF sources in the diets (Exp. 2). The results show that increase in ileal N with dietary NDF depend on leveland type of NDF.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/10/20 alle ore 16:03:53