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Dive into the research topics where J.L. Firkins is active.

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Featured researches published by J.L. Firkins.


Journal of Animal Science | 1985

Evaluation of wet and dry distillers grains and wet and dry corn gluten feeds for ruminants

J.L. Firkins; L. L. Berger; George C. Fahey


Journal of Animal Science | 1986

Effect of Intake and Forage Level on Ruminal Turnover Rates, Bacterial Protein Synthesis and Duodenal Amino Acid Flows in Sheep

N. R. Merchen; J.L. Firkins; L. L. Berger


Journal of Dairy Science | 1984

Ruminal Nitrogen Degradability and Escape of Wet and Dry Distillers Grains and Wet and Dry Corn Gluten Feeds

J.L. Firkins; L. L. Berger; George C. Fahey; N. R. Merchen


Journal of Animal Science | 1986

Effects of Forage Particle Size, Level of Feed Intake and Supplemental Protein Degradability on Microbial Protein Synthesis and Site of Nutrient Digestion in Steers

J.L. Firkins; L. L. Berger; N. R. Merchen; George C. Fahey


Journal of Dairy Science | 1986

Effects of Feed Intake and Protein Degradability on Ruminal Characteristics and Site of Digestion in Steers

J.L. Firkins; L. L. Berger; N. R. Merchen; George C. Fahey; D.R. Nelson


Journal of Dairy Science | 1987

Ruminal Nitrogen Metabolism in Steers as Affected by Feed Intake and Dietary Urea Concentration

J.L. Firkins; L. L. Berger; N. R. Merchen; George C. Fahey; R.L. Mulvaney


Journal of Dairy Science | 1990

Effect of inoculation of whole plant corn forage with Pediococcus acidilactici and Lactobacillus xylosus on preservation of silage and heifer growth.

R.M. Cleale; J.L. Firkins; F. Van Der Beek; J.H. Clark; E.H. Jaster; G.C. McCoy; T.H. Klusmeyer


Journal of Dairy Science | 1987

Effects of Feed Intake and Dietary Urea Concentration on Ruminal Dilution Rate and Efficiency of Bacterial Growth in Steers

J.L. Firkins; S.M. Lewis; L. Montgomery; L. L. Berger; N. R. Merchen; George C. Fahey


Journal of Dairy Science | 1993

Dose Titration of Sustained-Release Recombinant Bovine Somatotropin in Lactating Dairy Cows

J.V. Downer; D.L. Patterson; D.W. Rock; William Chalupa; R.M. Cleale; J.L. Firkins; G.L. Lynch; J.H. Clark; B.O. Brodie; B.F. Jenny; R. De Gregorio


Journal of Dairy Science | 1985

Roughage Content and Particle Size: Their Effects on Size Reduction and Fiber Composition of Particles Passing Through the Gastrointestinal Tract of Sheep fed Corncob-Concentrate Diets

M. S. Kerley; J.L. Firkins; George C. Fahey; L. L. Berger

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William Chalupa

University of Pennsylvania

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