Marshall Stern

About

Marshall Stern is a Professor Emeritus in the Department of Animal Science at the University of Minnesota Twin Cities. His research emphasizes protein nutrition of ruminants, including methodology for measuring protein degradation and microbial protein synthesis in the rumen, as well as protein absorption from the small intestine. He studies various factors affecting microbial fermentation and the rumen microbiome using continuous culture techniques. His teaching includes undergraduate courses such as Companion Animal Nutrition and Care, Animal Nutrition, and Ruminant Nutrition. Dr. Stern's extensive publication record includes research on microbial fermentation, rumen microbiome, and protein metabolism in ruminants, contributing significantly to the understanding of ruminant nutrition and digestion.

Research topics

• Food science
• Chemistry
• Biology
• Animal science
• Biochemistry

Selected publications

• Nitrogen Metabolism in the Rumen

  Journal of Dairy Science · 2005-04-01 · 1284 citations

  reviewOpen accessSenior author

  Protein metabolism in the rumen is the result of metabolic activity of ruminal microorganisms. The structure of the protein is a key factor in determining its susceptibility to microbial proteases and, thus, its degradability. Ruminal protein degradation is affected by pH and the predominant species of microbial population. Ruminal proteolytic activity decreases as pH decreases with high-forage dairy cattle-type rations, but not in high-concentrate beef-type rations. Accumulation of amino acid (…

  PublisherOA PDFDOI

• Effects of Saccharomyces cerevisiae on ruminal pH and microbial fermentation in dairy cows

  Livestock Science · 2009-03-26 · 121 citations

  articleCorresponding
  PublisherDOI

• Mitigation of in vitro hydrogen sulfide production using bismuth subsalicylate with and without monensin in beef feedlot diets

  Journal of Animal Science · 2015-10-16 · 56 citations

  articleSenior authorCorresponding

  The objective of this study was to determine if a sulfur binder, bismuth subsalicylate (BSS), alone or combined with monensin (MON) could decrease the production of HS by rumen microbes. In Exp. 1, two 24-h batch culture incubations were conducted using a substrate consisting of 50% corn, 40% distillers grains, 9.75% hay, and 0.25% mineral premix, on a DM basis. Five treatments including BSS concentrations of 0% (control), 0.5%, 1%, 2%, and 4% of DM were assigned in 5 replicates to 120-mL serum…

  PublisherDOI

• Chemical composition, in situ ruminal degradability and post-ruminal disappearance of dry matter and crude protein from the halophytic plants Kochia scoparia, Atriplex dimorphostegia, Suaeda arcuata and Gamanthus gamacarpus

  Animal Feed Science and Technology · 2007-07-27 · 33 citations

  articleCorresponding
  PublisherDOI

• Intestinal digestibility of amino acids in rumen-undegraded protein estimated using a precision-fed cecectomized rooster bioassay: II. Distillers dried grains with solubles and fish meal

  Journal of Dairy Science · 2009-11-19 · 32 citations

  articleOpen access

  The objectives of this experiment were to measure intestinal digestibility of AA in the rumen-undegraded protein fraction (RUP-AA) of distillers dried grains with solubles (DDGS) and fish meal (FM) samples and to determine whether these feeds contain a constant protein fraction that is undegradable in the rumen and indigestible in the small intestine, as assumed in the French Institut National de la Recherche Agronomique (Paris, France) and Scandinavian AAT-PBV (AAT = AA absorbed from small inte…

  PublisherOA PDFDOI

Frequent coauthors

• J.L. Firkins

  The Ohio State University

  51 shared

• D.L. Palmquist

  The Ohio State University

  49 shared

• John Huber

  Natural Resources Canada

  49 shared

• J.H. Clark

  Urbana University

  49 shared

• G.A. Varga

  49 shared

• J.G. Linn

  Optimal Solutions (United States)

  26 shared

• S. Calsamiglia

  Universitat Autònoma de Barcelona

  26 shared

• D.E. Otterby

  25 shared

Labs

• Department of Animal SciencePI

Education

• Ph. D., Animal Science

  University of Maine

  1978

Similar researchers at University of Minnesota

• Lee Johnstonh-41
• Chris Faulkh-30
• Brad Heinsh-28