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2004

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Kansas Agricultural Experiment Station Research Reports

2004; Kansas Agricultural Experiment Station contribution; no. 04-242-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 923; Beef; In vitro; Fibrolytic enzymes; Feedstuffs

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In Vitro Evaluation Of Fibrolytic Enzymes To Increase Digestion Of Fibrous Feedstuffs, E.A. Elwakeel, B.J. Johnson, Evan C. Titgemeyer Jan 2004

In Vitro Evaluation Of Fibrolytic Enzymes To Increase Digestion Of Fibrous Feedstuffs, E.A. Elwakeel, B.J. Johnson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Fermentations were conducted to identify enzyme activities and amounts that would optimize digestion of high-fiber feed ingredients (soybean hulls, alfalfa, corn silage, and corn gluten feed). In general, adding enzymes increased in vitro dry matter disappearance, but total volatile fatty acid concentrations were not improved by enzyme treatments. The response to enzymes was similar across substrate, suggesting that substrate specificity of the enzymes is not important. The most effective enzyme preparation had greater cellulase activity than the other enzyme preparations, suggesting that cellulase might be the most important enzymatic activity for improving digestion of fibrous feedstuffs.