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R. R. Oltjen

United States Department of Agriculture

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Publication

Featured researches published by R. R. Oltjen.

Journal of Animal Science | 1974

Ponies vs. Steers: Microbial and Chemical Characteristics of Intestinal Ingesta1

D. L. Kern; L. L. Slyter; E. C. Leffel; J. M. Weaver; R. R. Oltjen

Journal of Nutrition | 1966

Plasma amino acids and nitrogen retention by steers fed purified diets containing urea or isolated soy protein.

R. R. Oltjen; P. A. Putnam

Journal of Nutrition | 1968

Evaluation of urea, biuret, urea phosphate and uric acid as NPN sources for cattle.

R. R. Oltjen; L. L. Slyter; A. S. Kozak; E. E. Williams

Journal of Animal Science | 1970

Influence of Type and Level of Grain and Diethylstilbestrol on the Rumen Microbial Populations of Steers Fed All-Concentrate Diets

L. L. Slyter; R. R. Oltjen; D. L. Kern; F. C. Blank

Journal of Nutrition | 1968

Microbial Species Including Ureolytic Bacteria from the Rumen of Cattle Fed Purified Diets

L. L. Slyter; R. R. Oltjen; D. L. Kern; J. M. Weaver

Journal of Nutrition | 1971

Influence of the branched-chain volatile fatty acids and phenylacetate on ruminal microorganisms and nitrogen utilization by steers fed urea or isolated soy protein.

R. R. Oltjen; L. L. Slyter; E. E. Williams; D. L. Kern

Journal of Nutrition | 1967

Influence of carbohydrate and nitrogen sources on the rumen volatile fatty acids and ethanol of cattle fed purified diets.

E. R. Ørskov; R. R. Oltjen

Journal of Animal Science | 1969

Urea versus biuret in a roughage diet for steers.

R. R. Oltjen; E. E. Williams; L. L. Slyter; Richardson Gv

Journal of Nutrition | 1971

Influence of Starch and Nitrogen Sources on Ruminal Microorganisms of Steers Fed High Fiber Purified Diets

L. L. Slyter; D. L. Kern; J. M. Weaver; R. R. Oltjen; R. L. Wilson

Journal of Nutrition | 1968

Effect of diethylstilbestrol on the blood plasma amino acid patterns of beef steers fed finishing diets.

R. R. Oltjen; R. P. Lehmann

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L. L. Slyter

United States Department of Agriculture

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D. L. Kern

United States Department of Agriculture

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E. E. Williams

United States Department of Agriculture

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J. M. Weaver

United States Department of Agriculture

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R. L. Wilson

United States Department of Agriculture

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P. A. Putnam

United States Department of Agriculture

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Theron S. Rumsey

United States Department of Agriculture

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A. S. Kozak

United States Department of Agriculture

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B. T. Weinland

United States Department of Agriculture

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C. A. Cabell

United States Department of Agriculture

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