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Journal of Dairy Science Vol. 50 No. 4 527-530
© 1967 by American Dairy Science Association ®
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Effect of Maturity on Digestibility of Forage Sorghum Silages1

F. G. Owen and J. W. Kuhlman2

Department of Dairy Science, University of Nebraska, Lincoln

ABSTRACT

Atlas and Rox sorghum varieties were each harvested at the milk, medium-dough, and hard-dough stages. Digestibilities were determined by the Cr2O3, grab-sample technique, using Holstein heifers. The apparent digestibility of Atlas sorghum silage dry matter was depressed from 55 to 46% by advancing maturity from the milk to the hard-seed stages. Energy and protein digestibility also were decreased. Digestibility of Rox silage was not appreciably affected by maturity. Results suggest that frosting may improve digestibility of Atlas. Grinding had little effect.

FOOTNOTES

1 Published with the approval of the Director as paper no. 1988, Journal Series, Nebraska Agricultural Experiment Station, Lincoln.

2 Present address: Buffalo County Extension Office, Kearney, Nebraska.






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Copyright © 1967 by the American Dairy Science Association ®.