Effects of alkaline hydrogen peroxide treatment of wheat straw on site and extent of digestion in sheep

Journal of Animal Science
M S KerleyJ M Gould

Abstract

Two experiments (4 X 4 Latin squares) were conducted, using four multiple-cannulated wethers (mean body weight, 65 kg), to determine effects of treating wheat straw (WS) with alkaline solutions (pH 11.5) of hydrogen peroxide (AHP; .26 g hydrogen peroxide/g WS) on site and extent of nutrient digestion in sheep. Diets contained either 33 to 37% (low WS) or 70 to 72% (high WS) AHP-treated (T) or non-treated (C) WS. Treatment of WS with AHP resulted in increased acid detergent fiber and cellulose concentrations and decreased acid detergent lignin (ADL) concentrations compared with non-treated WS. In Exp. 1, intakes were held constant at approximately 1,044 g dry matter (DM)/d. When fed AHP-treated WS diets, wethers digested more (P less than .05) DM, neutral detergent fiber (NDF) and cellulose in the stomach (54.8, 47.4, 51.6 and 20.0%; 65.6, 68.8, 51.5 and 37.2%; 66.6, 74.2, 45.2 and 40.7% of intake, respectively, for low WS-T, high WS-T, low WS-C and high WS-C diets) and in the total tract (83.0, 74.8, 68.4 and 50.0%; 81.8, 81.0, 53.9 and 42.1%; 85.2, 86.9, 50.2 and 47.6%, respectively, for the low WS-T, high WS-T, low WS-C and high WS-C diets), and had lower (P less than .05) ruminal pH than when fed the non-treated WS diets. In...Continue Reading

Citations

Jan 10, 1989·Biotechnology and Bioengineering·J M GouldL L Berger
Dec 1, 1987·Applied and Environmental Microbiology·R B HespellR J Bothast

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