Xunde Li

Xunde Li

Researcher

Population Health & Reproduction


Education
2000, PhD, University of Rouen, Rouen, France
1990, MS, Jilin University, China
1987, BS, Jilin Agricultural University, China
Active Research Grants
Principal Investigator, Extending NARMS surveillance of antibiotic resistance in retail foods in California, (Principal Investigator), FDA
Principal Investigator, Enhancing NARMS surveillance of antibiotic resistance in retail foods in Hawaii , (Principal Investigator), FDA
Co-Investigator, Assessing the occupational exposure of farmworkers to antibiotic resistant bacteria in dairy production, Xiang Yang (Principal Investigator), CDC National Institute for Occupational Safety and Health (NIOSH)
Co-Principal Investigator, Organic fatty acid derivatives as alternatives to in-feed antibiotics to improve weanling pig health and growth, Yanhong Liu (Principal Investigator), USDA NIFA
Co-Principal Investigator, San Joaquin-Sacramento Dairy STEC Survey, Edward Rob Atwill (Principal Investigator), FDA
Principal Investigator, Assessment of antimicrobial resistance in Enterococcus from retail pork related to production and handling practices, (Principal Investigator), UCDavis CLEAR Center
Co-Principal Investigator, A pilot study on occupational exposure to antibiotic resistant bacteria in swine facility, Xiang Yang (Principal Investigator), UCDavis CLEAR Center
Honors and Awards
2009 Scientific Cooperation Exchange Program between USDA and China’s Ministry of Agriculture, invited expert of U.S. Team #4: “Rapid detection technologies for food safety, environmental and agricultural applications”, October 10-25.
2000-2001 USDA and USEPA joint research scholarship
1998-2000 Scholarship, awarded by Normandy Association of Parasitology Research, France
Most Recent Five Book Chapters
2020 Ji P, Li X, Liu Y: Chapter 2: Dietary Intervention to Reduce E. coli Infectious Diarrhea in Young Pigs, Rodrigo L, (ed), E. Coli Infections - Importance of Early Diagnosis and Efficient Treatment, . .
2019 Robles Jimenez LE, Angeles Hernandez JC, Osorio Avalos J, Li X, Atwill ER, Castelan Ortega O, Gonzalez Ronquillo M: Veterinary Antibiotics in Animal Diet: Effects on Waste/Environment, , Bioactive Molecules in Food, . 1775-1792.
2013 Chen S, Li X, Li J, Atwill ER: Chapter 8: Rapid detection of Brucella spp. using loop-mediated isothermal amplification (LAMP), Kolpashchikov DM, Gerasimova YV, (ed), Methods in Molecular Biology: Nucleic Acid Detection: Methods and Protocols, . 99-108.
2012 Atwill ER, Li X, Grace D, Gannon V: Chapter 3: Zoonotic waterborne pathogen loads in livestock, Dufour A, Bartram J, Bos R, Gannon V, (ed), Animal Waste, Water Quality and Human Health, WHO, London, UK. 73-114.
2012 Atwill ER, Partyka M, Bond RF, Li X, Xiao C, Karle B, Kiger LE: An introduction to waterborne pathogens in agricultural watersheds, , Natural Resources Conservation Service, United States Department of Agriculture, . 1-84.
Research Focus
Laboratory and field studies of sources and transmission of foodborne pathogensMolecular characteristics of foodborne zoonotic pathogensAntimicrobial resistance of enteric bcteria in the food supply chain
Specialty Focus
The overall goal of my research is to protect the health of animals and the public and food safety through laboratory and field-based studies on the sources, transmission, and molecular epidemiology of pathogens and bacterial antimicrobial resistance.
Ten Recent Publications

2024
Lee KY, Schlesener CL, Aly SS, Huang C, Li X, Atwill ER, Weimer BC
Whole genome sequence analysis reveals high genomic diversity and potential host-driven adaptations among multidrug-resistant Escherichia coli from pre-weaned dairy calves

2024
Bolkenov B, Lee KY, Atwill ER, Pitesky M, Rickard M, Hung-Fan M, Shafii M, Lavelle K, Huang A, Sebti J, Tanaka MM, Yang X, Li X^
Phenotypic and genotypic characterization of antimicrobial resistance of non-typhoidal Salmonella from retail meat in California

2024
Pandey P, Gaa ME, Huo J, Okada Y, Lee KY, Giat S, Li X, Zhang R, Pandey P
Determining the prevalence of Escherichia coli, Salmonella, and shiga toxin-producing Escherichia coli in manure of dairy lagoons

2024
Pandey P, Fu Y, Gardner-Garcia J, Pan J, Huo J, Li X, Zhang R, Pandey P
The application of aeration and ozonation for E. coli inactivation in dairy manure slurry

2024
Lee KY, Atwill ER, Li X, Feldmann HR, Williams DR, Weimer BC, Aly SS
Impact of zinc supplementation on phenotypic antimicrobial resistance of fecal commensal bacteria from pre-weaned dairy calves

2024
Kim K, Jinno C, Li X, Bravo D, Cox E, Ji P, Liu Y
Impact of an oligosaccharide-based polymer on the metabolic profiles and microbial ecology of weanling pigs experimentally infected with a pathogenic E. coli

2023
Kovanda L, Park J, Park S, Kim K, Li X, Liu Y
Dietary butyrate and valerate glycerides impact diarrhea severity and immune response of weaned piglets under ETEC F4-ETEC F18 coinfection conditions.

2023
Hirshfeld B, Lavelle K, Lee KY, Atwill ER, Kiang D, Bolkenov B, Gaa M, Li Z, Yu A, Li X^, Yang X
Prevalence and antimicrobial resistance profiles of Vibrio spp. and Enterococcus spp. in retail shrimp in Northern California

2023
Lee KY, Lavelle K, Huang A, Atwill ER, Pitesky M, Li X^
Assessment of Prevalence and Diversity of Antimicrobial Resistant Escherichia coli from Retail Meats in Southern California

2023
Wright A, Li X, Yang X, Soto E, Gross J
Disease prevention and mitigation in US finfish aquaculture: A review of current approaches and new strategies.