J. Anim Sci.
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J. Anim Sci. 1970. 30:593-596.
© 1970 American Society of Animal Science
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An Evaluation of Newspaper as Feed for Ruminants1

L. B. Daniels, J. R. Campbell, F. A. Martz and H. B. Hedrick

University of Missouri, Columbia

Abstract

Twelve Holstein steers were divided into three groups and fed diets containing either 0, 8.0 or 12.0% group newspaper twice daily to consumption for 120 days. All animals were slaughtered at the end of the 120-day feeding period, and carcasses were evaluated.

There were no significant differences (P<.05) in rates of gain and feed efficiencies among animals receiving the three diets. Increased dry matter digestibility of the newspaper rations occurred.

Carcass grade was not affected by the rations although steers which had received the paper diets had a significantly lower (P<.01) percentage of fat in their carcasses. Specific gravity of carcasses of animals receiving the 12% paper diet was significantly higher than that of the control group. However, no difference (P<.05) in specific gravity of carcasses of those animals which received the 8% paper diet and those of the control group occurred. Carcasses of animals which received the paper diets produced a higher percentage (P<.01) of total and primal cuts than the control group. However, this difference was due to the lesser amount of fat. No difference (P<.01) due to rations was observed by a sensory panel in tenderness and flavor of the control meat. No accumulation of toxic minerals from the paper or ink in the liver of the animals was observed.

Thus, it appears that ground newspaper may replace at least 12% of the diet of growing dairy steers without reducing feed efficiency, rate of gain, carcass grade, flavor and tenderness desirability.

Footnotes

1 Contribution from Missouri Agricultural Experiment Station, Journal Series No. 5739. Approved by the Director.






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