acid hydrolyzed wood pulp, dry matter digestibility, dietary nitrogen
An acid hydrolyzed wood pulp (AHWP) product that had been buffered with NH4OH was evaluated as a potential feedstuff for ruminant diets. The finely ground low dry matter (33%) material was evaluated for acceptability, digestibility and protein feeding value. In vitro fermentation indicated that fermentable dry matter was extremely low, 35.1%. Diets were not readily consumed by cattle if they contained > 60% AHWP. In vivo dry matter digestibility (DMD) coefficients where AHWP replaced corn as 0, 15, 30 or 45% of the diet were 76.5, 69.3, 65.6 and 78.5%, respectively. A similar response was noted for crude protein and acid detergent fiber disappearance and indicated that negative associative effects due to forage: concentrate ratios may have existed. Nitrogen balance data indicated that the 16% crude protein AHWP contributed no useful dietary nitrogen.
Number of Pages
South Dakota State University
Copyright © 1986 South Dakota State University
Pritchard, RH. and N' Daiye, A., "Evaluation of an Acid Hydrolyzed Wood By-Product as an Energy and Protein Source in Rumiant Diets" (1986). South Dakota Beef Report, 1986. 5.