# positions[].organizations[].parent[].label
College of Veterinary Medicine and Biomedical Sciences

# positions[].organizations[].parent[].label
School of Veterinary Medicine and Biomedical Sciences

# overview
Dr. Morley is an epidemiologist and veterinary internal medicine specialist that studies infectious diseases affecting animals and people. Major emphasis for his professional activities includes using analytical epidemiology to improve our understanding and control of diseases in animals and people, investigating the ecology of pathogens and antimicrobial resistance determinants in animals and food production systems, and using infection control and biosecurity to manage health risks that are important in veterinary medicine, agriculture, and public health. Most recently he has used metagenomic methods to investigate the effects of agriculture production practices on antimicrobial resistance and microbial ecology as these affect human, animal, and ecosystem health. In 2019, he was appointed the Director of Research for VERO - the Veterinary Education, Research & Outreach Program - in the College of Veterinary Medicine and Biomedical Sciences at Texas A&M University. In this role, he supports the growth of research programs for all VERO faculty, supervises and provides oversight for research staff and laboratories, and promotes research exposure programs for veterinary and undergraduate students.  Previously, Dr. Morley served for 20 years as Professor of Epidemiology and the Director of Infection Control at Colorado State University's Veterinary Teaching Hospital. He is a recognized authority on infection control in animal populations and has consulted on infection control and biosecurity issues at veterinary hospitals, veterinary colleges, and animal production facilities around the world.

# keywords[]
United States Food And Drug Administration

# publications[].label
Effects of Ceftiofur and Chlortetracycline on the Resistomes of Feedlot Cattle.

# publications[].label
Differentiation of lymphocytic-plasmacytic enteropathy and small cell lymphoma in cats using histology-guided mass spectrometry.

# publications[].label
Resistomes and microbiome of meat trimmings and colon content from culled cows raised in conventional and organic production systems.

# publications[].label
Does swab type matter? Comparing methods for Mannheimia haemolytica recovery and upper respiratory microbiome characterization in feedlot cattle.

# publications[].label
Mycoplasma bovis is associated with Mannheimia haemolytica during acute bovine respiratory disease in feedlot cattle.

# publications[].label
Antimicrobial Resistance at Two U.S. Cull Cow Processing Establishments.

# publications[].label
Characterization of the Microbial Resistome in Conventional and “Raised Without Antibiotics” Beef and Dairy Production Systems

# publications[].label
Comparison of detection methods for Salmonella enterica shedding among reptilian patients at a veterinary teaching hospital.

# publications[].label
Survey of production animal veterinarians' prescription practices, factors influencing antimicrobial drug use, and perceptions of and attitudes toward antimicrobial resistance.

# publications[].publisher
American Veterinary Medical Association (AVMA)

# publications[].label
Characterization of the microbiota and resistome of bulk tank milk samples from Prince Edward Island dairy farms.

# publications[].label
Critically important antibiotics: criteria and approaches for measuring and reducing their use in food animal agriculture.

# publications[].label
New insights on liver abscess syndrome in cattle using metagenomic investigations

# publications[].label
Metagenomic Characterization of the Microbiome and Resistome of Retail Ground Beef Products.

# publications[].label
Calculation of Antimicrobial Use Indicators in Beef Feedlots-Effects of Choice of Metric and Standardized Values.

# publications[].label
Factors Associated With Nonsurvival in Foals Diagnosed With Perinatal Asphyxia Syndrome

# publications[].label
Detection of cold-adapted vaccine-strain influenza virus using two commercial assays.

# publications[].label
MEGARes 2.0: a database for classification of antimicrobial drug, biocide and metal resistance determinants in metagenomic sequence data.

# publications[].label
More than an anthropogenic phenomenon: Antimicrobial resistance in ungulates from natural and agricultural environments.

# publications[].label
Hierarchical Hidden Markov models enable accurate and diverse detection of antimicrobial resistance sequences

# publications[].label
Modified-Live Virus Respiratory Vaccines and Bovine Respiratory Disease Influence the Respiratory Microbiome of Cattle

# publications[].label
Bacteroidetes and Firmicutes Drive Differing Microbial Diversity and Community Composition Among Micro-Environments in the Bovine Rumen.

# publications[].label
Feedlot Cattle Antimicrobial Use Surveillance Network: A Canadian Journey.

# publications[].label
No Change in Risk for Antibiotic-Resistant Salmonellosis from Beef, United States, 2002-2010.

# publications[].publisher
Centers for Disease Control and Prevention (CDC)

# publications[].label
Genomic diversity of class I integrons from antimicrobial resistant strains of Salmonella Typhimurium isolated from livestock, poultry and humans.

# publications[].label
Delayed diagnosis of fatal pneumonic canine plague: clinical and pathologic features in two naturally infected Colorado dogs.

# publications[].label
Complexities in understanding antimicrobial resistance across domesticated animal, human, and environmental systems.

# publications[].label
Antimicrobial Resistance in U.S. Retail Ground Beef with and without Label Claims Regarding Antibiotic Use.

# publications[].label
A Cautionary Report for Pathogen Identification Using Shotgun Metagenomics; A Comparison to Aerobic Culture and Polymerase Chain Reaction for Salmonella enterica Identification

# publications[].label
MEGARes and AMR++, v3.0: an updated comprehensive database of antimicrobial resistance determinants and an improved software pipeline for classification using high-throughput sequencing.

# publications[].label
Investigation of tylosin in feed of feedlot cattle and effects on liver abscess prevalence, and fecal and soil microbiomes and resistomes1.

# publications[].label
Understanding the role of cleaning in the control of Salmonella Typhimurium in grower-finisher pigs: a modelling approach.

# publications[].label
Effects of feeding aspirin and supplemental vitamin E on plasma concentrations of 3-methylindole, 3-methyleneindolenine-adduct concentrations in blood and pulmonary tissues, lung lesions, and growth performance in feedlot cattle.

# publications[].publisher
American Veterinary Medical Association (AVMA)

# publications[].label
The Microbial Ecology of Liver Abscesses in Cattle.

# publications[].label
Antimicrobial Use on 36 Beef Feedlots in Western Canada: 2008-2012.

# publications[].label
Evaluating the effects of antimicrobial drug use on the ecology of antimicrobial resistance and microbial community structure in beef feedlot cattle.

# publications[].label
Characterization and comparison of the microbiomes and resistomes of colostrum from selectively treated dry cows.

# publications[].label
Time-dependent changes in plasma concentrations of 3-methylindole and blood concentrations of 3-methyleneindolenine-adduct in feedlot cattle.

# publications[].publisher
American Veterinary Medical Association (AVMA)

# publications[].label
Establishing the link between microbial communities in bovine liver abscesses and the gastrointestinal tract.

# researcherOn[].label
Evaluating duration of tylosin phosphate treatment in feedlot cattle for liver abscess prevention to ensure efficacy while addressing concerns about antimicrobial resistance

# researcherOn[].awardedBy.label
United States Food and Drug Administration - (Silver Spring, Maryland, United States)

# streetAddress
3201 Russell Long Blvd; VERO Building, WTAMU Campus; 

# organizations[]
College of Veterinary Medicine and Biomedical Sciences

# organizations[]
School of Veterinary Medicine and Biomedical Sciences

# schools[]
College of Veterinary Medicine and Biomedical Sciences

# schools[]
School of Veterinary Medicine and Biomedical Sciences

# websites[].label
VERO Program, A Partnership of Texas A&M University and West Texas A&M University

# websites[].label
Google Scholar Profile, with citation statistics)