Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 450385
Title Rigid pectin-cellulose-lignin matrix limits fermentation of canola (Brassica napus) meal polysaccharides in pigs
Author(s) Pustjens, A.M.; Vries, S. de; Kabel, M.A.; Gerrits, W.J.J.
Source In: Proceedings of the 2014 BANFF Pork Seminar Advances in Pork Production. - Edmonton, Alberta, Canada : University of Alberta - p. 19 - 19.
Event Edmonton, Alberta, Canada : University of Alberta Banff Pork Seminar Advances in Pork Production, Banff, Canada, 2014-01-21/2014-01-23
Department(s) Animal Nutrition
Food Chemistry Group
Publication type Abstract in scientific journal or proceedings
Publication year 2014
Abstract Degradation of non-starch polysaccharides (NSP) from canola meal (CM) is rather low (~60%) compared with NSP from other sources, such as soybean meal (~85%). Feed processing technologies might be used to improve degradability of NSP, but developing targeted technologies requires insight in the recalcitrant NSP-structures in CM. To identify the limiting structures in degradation of NSP from CM, undegraded carbohydrate structures from ileum, cecum, colon, and feces from pigs were studied in depth. A diet, containing 40 % (w/w) CM as the only NSP-source, was fed to growing pigs (gilts; initial BW: 20.8 ± 2.4 kg) for 14 days. Feces were collected during four days after which animals were euthanized to collect digesta samples. Ileal digestibility of NSP from CM was 22 % and total tract digestibility 68%. Water-soluble NSP were found to be almost completely fermented. Nearly 50 % of the unfermented carbohydrate structures in feces were found to be tightly bound pectins (e.g. rhamnogalacturonan and arabinan), xyloglucan, and cellulose, presumably, present as a rigid cellulose-lignin network in CM. The other half consisted of smaller uronyl-rich carbohydrates that were released during alkaline extraction of the feces. Presumably, these carbohydrates were present via ester-linkages or hydrogen-bonding within the cellulose-lignin network in the original CM. Apparently, microbiota present in the pigs’ digestive tract were able to partly degrade those carbohydrates but still complete fermentation was hindered by ester- or H-bonds.
There are no comments yet. You can post the first one!
Post a comment
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.