Effects of Alkaline Hydrogen-Peroxide Treatment of Crop Residues on Cell Wall Carbohydrate Utilization by Ruminants (Lignocellulose)

Kerley, Monty Stephen

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Description

Title

Effects of Alkaline Hydrogen-Peroxide Treatment of Crop Residues on Cell Wall Carbohydrate Utilization by Ruminants (Lignocellulose)

Author(s)

Kerley, Monty Stephen

Issue Date

1987

Department of Study

Animal Sciences

Discipline

Animal Sciences

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

Ph.D.

Degree Level

Dissertation

Keyword(s)

Agriculture, Animal Culture and Nutrition

Abstract

Cellulose, generally the major component of plant cell walls, would have great potential as a ruminant animal feedstuff if factors limiting its microbial degradation in the ruminant's gastrointestinal tract could be removed by chemical treatment. Treating lignocellulosic materials with an alkaline (pH 11.5) solution of hydrogen peroxide (.26 g hydrogen peroxide per g lignocellulosic material; AHP) increased the ability of ruminal microbes to colonize wheat straw (WS) as measured using scanning electron microscopy. In situ rate of microbial degradation of AHP-treated WS was two-fold greater (P $$.05) amounts of dry matter when fed AHP-treated and low-U WS diets and lower (P $$.05) to those of steers fed diets containing 60% corn silage; 20% corn. The AHP treatment appeared to increase susceptibility of cell wall polysaccharides to microbial degradation by removing phenolic acids which are covalently bound to the cell wall polysaccharides and(or) by disrupting the three-dimensional structure of lignin encrusting the cell wall carbohydrates.

Graduation Semester

1987

Type of Resource

text

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