The role of oligosaccharides and polysaccharides of xylan and mannan in gut health of monogastric animals

Published on: 03/17/2021
Author/s : Utsav P. Tiwari 1, Stephen A. Fleming 1, Muhammed S. Abdul Rasheed 1, R. Jha 2 and Ryan N. Dilger 1. / 1 Department of Animal Sciences, University of Illinois, Urbana, IL, USA; 2 Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa, Honolulu, HI, USA.

IntroductionMarket availability and fluctuation in the cost of conventional feed ingredients are pushing producers to increase inclusion of low-cost, fibre-rich co-products in the diets of monogastric animals. One major issue of this approach is that digestibility of high-fibre ingredients varies widely, with α-linked starch being digestible through hydrolytic–enzymatic action, but &be...

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March 17, 2021
Excellent and complete article on this important topic in monogastric nutrition that enables more use of unusual ingredients or not so classic.
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March 23, 2021
Very interesting article. But xylans and mannans are not only two important NSP. There are also a lot of other NSPs, for example beta-glucans and pectins. All these substances belong to a large family of anti-nutrients, and their spectra in depending on the local sources of dietary protein and carbohydrates, according to regional specific. The main target is to develop the proper enzymes mix composition, adapted for real feed recipe.
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Utsav Prakash Tiwari Utsav Prakash Tiwari
Ph.D. in Nutrition
March 29, 2021
Thanks Dr. Fiodor S. Marchenkov,

“I agree that it is imperative to look at ingredients. You are correct that xylans and mannans are not the only NSPs, however, they are the most abundant hemicellulosic polysaccharides (a major focus of this article). xylans alone make up 43% while beta-glucans are only 2%. Beta-glucan have a high molecular weight compared to xylan, however are easily broken down because of their high soluble property. The structure of xylan varies with the ingredients used and so does their solubility which directly influences the debranching mechanism (through enzyme supplementation). It is imperative when choosing an enzyme strategy to look at what will give you the highest impact in the feed. That includes as you said the local sources and regional specific ingredients. However, in a typical diet xylans are the largest targets to create the most impact.”
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Hiren Pancholi Hiren Pancholi
Graduation in commerce
March 25, 2021
True Dr Fiodor.

Microbial Xylanase is more suitable for its advantages. Along with Xylanase, a protease with the mannan may cover up a vast range of NSPs,
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