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Katharine F. Knowlton

Katharine F. Knowlton

D-Index & Metrics

Animal Science and Veterinary

D-Index
32
Citations
4155
World Ranking
2113
National Ranking
602

Overview

Katharine F. Knowlton is affiliated with Virginia Tech in the United States and has conducted research primarily within the fields of Biochemistry, Genetics and Molecular Biology, and Environmental Science. Their work spans several subfields including Pollution, Molecular Biology, Molecular Medicine, Agronomy and Crop Science, and Pharmacology.

The central themes of Knowlton's research focus on Pharmaceutical and Antibiotic Environmental Impacts, Antibiotic Resistance in Bacteria, Gut Microbiota and Health, Ruminant Nutrition and Digestive Physiology, Antibiotics Pharmacokinetics and Efficacy, Genomics and Phylogenetic Studies, and Composting and Vermicomposting Techniques.

Knowlton's recent papers include:

  • Combined effects of composting and antibiotic administration on cattle manure-borne antibiotic resistance genes, 2021, Microbiome
  • Metagenomic tracking of antibiotic resistance genes through a pre-harvest vegetable production system: an integrated lab-, microcosm- and greenhouse-scale analysis, 2022, Environmental Microbiology
  • Graduate Student Literature Review: Potential mechanisms of interaction between bacteria and the reproductive tract of dairy cattle, 2020, Journal of Dairy Science
  • Short communication: Increasing temperature and pH can facilitate reductions of cephapirin and antibiotic resistance genes in dairy manure slurries, 2020, Journal of Dairy Science
  • Integrated Metagenomic Assessment of Multiple Pre-harvest Control Points on Lettuce Resistomes at Field-Scale, 2021, Frontiers in Microbiology

The venues where Knowlton frequently publishes include:

  • Journal of Dairy Science
  • Animals
  • Microbiome
  • Environmental Microbiology
  • Frontiers in Microbiology

Knowlton collaborates regularly with several coauthors, including:

  • Amy Pruden
  • Ishi Keenum
  • Partha Ray
  • Kang Xia
  • Lauren Wind

Best Publications

  • Invited review: Sustainability of the US dairy industry.

    M. A.G. von Keyserlingk;N. P. Martin;Ermias Kebreab;K. F. Knowlton

  • Animal management to reduce phosphorus losses to the environment.

    K. F. Knowlton;J. S. Radcliffe;C. L. Novak;D. A. Emmerson

  • Performance, ruminal fermentation, and site of starch digestion in early lactation cows fed corn grain harvested and processed differently.

    K.F. Knowlton;B.P. Glenn;R.A. Erdman

  • Effect of Manure Application on Abundance of Antibiotic Resistance Genes and Their Attenuation Rates in Soil: Field-Scale Mass Balance Approach

    Nicole Fahrenfeld;Katharine Knowlton;Leigh Anne Krometis;W Cully Hession

  • Phosphorus partitioning during early lactation in dairy cows fed diets varying in phosphorus content.

    K.F. Knowlton;J.H. Herbein

  • Phosphorus characteristics of dairy feces affected by diets.

    Zhengxia Dou;Katharine F. Knowlton;Richard A. Kohn;Zhiguo Wu

  • Glucose Metabolism and Milk Yield of Cows Infused Abomasally or Ruminally with Starch

    K.F. Knowlton;T.E. Dawson;B.P. Glenn;G.B. Huntington

  • Occurrence, fate and removal of synthetic oral contraceptives (SOCs) in the natural environment: A review

    Ze-hua Liu;Jactone Arogo Ogejo;Amy Pruden;Katharine F. Knowlton

  • Phosphorus Feeding Levels and Critical Control Points on Dairy Farms

    Z. Dou;J.D. Ferguson;J. Fiorini;J.D. Toth

  • Ammonia Emissions and Animal Agriculture

    Katharine F. Knowlton

  • Metagenomic analysis of antibiotic resistance genes in dairy cow feces following therapeutic administration of third generation cephalosporin

    Lindsey Chambers;Ying Yang;Heather Littier;Partha Ray

  • Nitrogen and phosphorus partitioning in lactating Holstein cows fed different sources of dietary protein and phosphorus.

    K.F. Knowlton;J.H. Herbein;M.A. Meister-Weisbarth;W.A. Wark

  • Effects of milk replacer composition on growth, body composition, and nutrient excretion in preweaned Holstein heifers

    S.R. Hill;K.F. Knowlton;K.M. Daniels;R.E. James

  • Lasalocid and Particle Size of Corn Grain for Dairy Cows in Early Lactation. 1. Effect on Performance, Serum Metabolites, and Nutrient Digestibility

    K. F. Knowlton;M. S. Allen;Peter S. Erickson

  • Excretion of antibiotic resistance genes by dairy calves fed milk replacers with varying doses of antibiotics.

    Callie H. Thames;Amy Pruden;Robert E. James;Partha P. Ray

  • Cow and herd variation in milk urea nitrogen concentrations in lactating dairy cattle.

    M. Aguilar;M.D. Hanigan;H.A. Tucker;B.L. Jones

  • Manure nutrient excretion by lactating cows fed exogenous phytase and cellulase.

    K.F. Knowlton;M.S. Taylor;S.R. Hill;C. Cobb

  • Effect of a direct-fed fibrolytic enzyme formulation on nutrient intake, partitioning, and excretion in early and late lactation Holstein cows.

    K.F. Knowlton;J.M. McKinney;C. Cobb

  • Fate and Effect of Antibiotics in Beef and Dairy Manure during Static and Turned Composting

    Partha Ray;Chaoqi Chen;Katharine F. Knowlton;Amy Pruden

  • Dietary calcium has little effect on mineral balance and bone mineral metabolism through twenty weeks of lactation in Holstein cows

    M.S. Taylor;K.F. Knowlton;M.L. McGilliard;W.S. Swecker

  • Effects of Milk Replacer Composition on Selected Blood Metabolites and Hormones in Preweaned Holstein Heifers

    K.M. Daniels;S.R. Hill;K.F. Knowlton;R.E. James

  • Blood mineral, hormone, and osteocalcin responses of multiparous Jersey cows to an oral dose of 25-hydroxyvitamin D3 or vitamin D3 before parturition.

    M.S. Taylor;K.F. Knowlton;M.L. McGilliard;W.M. Seymour

  • Lasalocid and Particle Size of Corn Grain for Dairy Cows in Early Lactation. 2. Effect on Ruminal Measurements and Feeding Behavior

    K. F. Knowlton;M. S. Allen;Peter S. Erickson

  • Exposure to dairy manure leads to greater antibiotic resistance and increased mass-specific respiration in soil microbial communities

    Carl Wepking;Bethany Avera;Brian Badgley;John E. Barrett

  • Effect of composting and soil type on dissipation of veterinary antibiotics in land-applied manures.

    Chaoqi Chen;Partha Ray;Katharine F. Knowlton;Amy Pruden

  • Combined effects of composting and antibiotic administration on cattle manure–borne antibiotic resistance genes

    Ishi Keenum;Robert K. Williams;Partha Ray;Emily D. Garner;Emily D. Garner

  • A model of phosphorus digestion and metabolism in the lactating dairy cow.

    S.R. Hill;K.F. Knowlton;E. Kebreab

Frequent Co-Authors

Nancy G. Love
Nancy G. Love University of Michigan–Ann Arbor
Amy Pruden
Amy Pruden Virginia Tech
M.L. McGilliard
M.L. McGilliard Virginia Tech
James D. Ferguson
James D. Ferguson University of Pennsylvania
Zhengxia Dou
Zhengxia Dou University of Pennsylvania
Ermias Kebreab
Ermias Kebreab University of California, Davis
Richard A. Kohn
Richard A. Kohn University of Maryland, College Park
Michael S. Strickland
Michael S. Strickland University of Idaho
J.H. Herbein
J.H. Herbein Virginia Tech
John E. Barrett
John E. Barrett Virginia Tech

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