J. Anim Sci.
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J. Anim Sci. 1964. 23:203-207.
© 1964 American Society of Animal Science
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Estimation of the Digestibility and Nutritive Value of Forages by Cellulose and Dry Matter Solubility Methods1,2,3,

Burk A. Dehority and Ronald R. Johnson

Ohio Agricultural Experiment Station, Wooster4

Abstract

An improved procedure has been developed to determine the solubility of forage cellulose in cupriethylene diamine (CED). Values obtained with this method were highly correlated with the D.M. digestibility, energy digestibility and NVI of grasses and mixed forages, but not legumes. An additional chemical analysis, dry matter solubility (DMS) of the forage in 1.0 N H2SO4, was found to be well correlated with the relative intake as well as D.M. digestibility, energy digestibility and NVI for grasses, mixed forage and legumes. When the data from all types of forages (39 samples) were combined and correlated against the CED and DMS methods as well as the product ( CED x DMS) of the two methods, the best correlations obtained were as follows: D.M. digestibility (CED x DMS), 0.87; Energy digestibility (CED x DMS), 0.88; NVI (DMS), 0.83; and Relative intake (DMS), 0.78.

Footnotes

1 Approved for publication as Journal Article No. 78-63 by the Associate Director of the Ohio Agricultural Experiment Station. Wooster.

2 This work was supported in part by funds allocated to the Station, on the recommendation of the North Central Technical Committee on. Factors Affecting the Utilization of the Feed by Ruminants (NC-25).

3 The authors wish to acknowledge the technical assistance of Mrs. R. A. Maxwell.

4 Department of Animal Science.






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Copyright © 1964 by the American Society of Animal Science.