Len Chappell

Director of Customer Support

Georgia Poultry Laboratory Network

Gainesville Lab

In July 2009, I gladly accepted the newly created position of Director of Customer Service.  It is my desire for this laboratory to produce results using the most advanced technologies available and communicate our findings to the customer in the most efficient manner possible, yielding turn-a-round times that will meet or exceed our customer‘s expectations.

My intention is to be an effective liaison between the GPLN and the customer. Areas of focus in customer service include a) analysis of result trends, b) customer requested projects, c) development of technical training videos, d) production of technical bulletins, and e) addressing customer concerns.


B.S. -Chemistry/Biology , North Georgia College

M.S.- Medical Microbiology (College of Veterinary), University of Georgia


Respiratory Therapy Technician

Favorite Hobbies & Activities:

Welding, Woodworking, Traveling, Backdrop design for church plays and camps, Eating chicken!!!!!

Dr. James Davis

Veterinary Director – North Georgia

Gainesville Lab

Disease Diagnostics – including necropsy, field visits, telephone consultations, & flock inspections for health certificates


D.V.M., Auburn University

M.S. in Poultry Diseases, Auburn University

B.S. in Wildlife Biology, Auburn University


ACPV-Diplomate, American College of Poultry Veterinarians

Areas of interest:

Endocrinology; hypoglycemia-spiking mortality syndrome; enteric diseases of broilers

Dr. Louise Dufour-Zavala

Executive Director


Louise Dufour-Zavala has been named executive director of the Georgia Poultry Laboratory Network at Gainesville. Dufour-Zavala, who has been interim director since May 1, came to the Lab in 1997 as chief veterinarian and head of the clinical services department. She replaces James Scroggs, who served as director since 1996. Dr. Dufour-Zavala is an internationally respected veterinarian who has an impressive track record in working with the Georgia poultry industry. A native of Montreal, Dufour-Zavala holds a bachelor’s degree in animal science from McGill University in Montreal, a doctorate of veterinary medicine from the University of Montreal, and a masters of avian medicine from the University of Georgia. She is a diplomate with the American College of Poultry Veterinarians. The Georgia Poultry Laboratory Network includes the main lab in Gainesville, Georgia and branch labs at Forsyth and Tifton.


My responsibility is to coordinate the field and laboratory efforts of the laboratory network. I make sure that our employees are well trained and efficient in their work, and that our customers are satisfied with our services. I analyze poultry health issues throughout the state of Georgia and I am involved in emergency preparedness.


M.A.M. University of Georgia

D.V.M. University of Montreal

B.Sc. (Animal science) McGill University



Areas of interest:

Field work with broilers, breeders and layers, AI response, epidemiology, GIS mapping

Brenda Glidewell

Quality Manager and Director of Serology

QA, Serology

After spending 20 years on the commercial side of the poultry industry with diagnostic and vaccine companies in technical services, sales and marketing, I recently joined the GPLN as Director of the Serology Department and Quality Control. My past experience also included seven years as Chief Virologist at the MS Veterinary Diagnostic Laboratory, as well as Research Scientist at Murex, and Supervisor of Companion Animal Virus Vaccine Production for Rhone Merieux. My mission at GPLN is to work with our laboratory personnel in providing the highest quality Serological testing available in a timely manner and to maintain high standards of quality throughout the laboratory to enhance all diagnostic services.


PhD Coursework, Fisheries Biology, University of Mississippi

M.S., Microbiology, Mississippi State University

Bachelor of Science, Biology & Chemistry, Blue Mountain College

Dr. Arun Kulkarni

Veterinary Director, Virology


This laboratory is an official state agency delegated the task of implementing the NPIP in GA. As such I am involved in monitoring of avian influenza (AI) and exotic Newcastle disease virus RNA from clinical samples by real-time RT-PCR. In the past five years I have developed PCR-based diagnostic assays for the detection of infectious bronchitis virus genotypes, laryngotracheitis, infectious bursal disease, reovirus, chicken anemia virus, and Chlamydia-specific virual RNA/DNA from the clinical specimens. Additionally, we successfully adopted automated cycle sequencing method for genotyping IBD and IBDV field isolates described originally by Dr. Gelb(University of Delaware).


Ph.D. (Immunology) Australian National University

M.V.Sc. (Microbiology) Bombay Veterinary College

B.V.Sc Bombay Veterinary College


ACVM – Diplomate of the American College of Veterinary Microbiologists

Areas of interest:

Viral pathogenesis and immunobiology of virus infections.

Dr. Emily Pittman

Veterinary Director – Southeast Georgia
Tifton Lab

I first worked in the brand new GPLN building as the Necropsy Technician for almost one year and this cemented my desire to become a poultry veterinarian and perform necropsies. Throughout veterinary school, I became lovingly known to my classmates as “Chicken Emily” or “Emily Poultry” depending on who you talked to, feel free to call me either.

I had always wanted to return to GPLN as a veterinarian and it just so happened that my husband and I already owned a home in Tifton, GA, so it seemed like a no-brainer to propose a mutually beneficial employment opportunity for both GPLN and myself – the formal re-opening of the Tifton branch lab.

I greatly enjoy servicing the industry in the south half of the state as well as being able to assist local veterinarians with treatment and disease monitoring of small flocks in the region. I strive to better understand the evolving industry needs and recent changing regulations of testing.


B.S. in Agriculture – Avian Biology, University of Georgia

V.M.D. – University of Pennsylvania, School of Veterinary Medicine

M.A.H.M. – University of Georgia, College of Veterinary Medicine

Areas of interest:

Field work, disease investigation, learning!

Dr. Kathleen Sary

Veterinary Director
Gainesville, GA

I had the opportunity to join the poultry industry first as a technical representative for an allied industry partner through a Canadian-based feed additive company. I then worked as a veterinary practitioner in live poultry operations with one of the top 3 Canadian poultry meat processors. My days were filled with the unexpected since I was responsible not only for veterinary services for the broiler breeders but also quality control at the hatchery.
My interest to broaden and deepen my knowledge in disease control, risk assessment, and statistics brought me to enroll in a Master in Veterinary Epidemiology and Public Health. After celebrating 10 years as a graduated veterinarian, I was ready for a new opportunity which came through GPLN. I am thrilled to be able to continue servicing the poultry industry while tackling problems from a different angle using my skills and passion for epidemiology. I am excited to be a part this well-recognized organization in the heart of the Poultry Capital of the world!
My objective is to support the Georgia poultry business in diagnostics, disease surveillance, and analysis to achieve a thriving and sustainable industry. I look forward to learning and sharing experiences with other poultry professionals.

M.Sc. Veterinary Epidemiology and Public Health, University of London (current)
M.Sc. Veterinary Sciences – Meat Hygiene profile, University of Montreal
D.V.M., University of Montreal
B.Sc. in Agriculture and Environmental Sciences, McGill University

Favorite Hobbies & Activities:
I enjoy hiking and outdoor activities, Pilates, food and wine, and gardening.

Andrea Stephens

Histotechnologist, ASCP
Gainesville Lab


Education and Work experience:
Graduated from Mandl College, New York
Interned in Syosset Hospital, clinical laboratory
Worked in Bacteriology, Chemistry, Parasitology and Hematology.
Hematology was my main interest.
Syosset Hospital Histology program
Interned at Syosset in their Histology department

Moved to Baton Rouge, La. attended LSU
Worked in a private laboratory part time while going to school
Received my ASCP HT

Moved to Atlanta, Georgia
Worked in a private laboratory as Histology Lead Tech
Received my ASCP HTL
Worked at Quest Laboratory as Histology Supervisor
Currently working at Georgia Poultry Laboratory in Gainesville, Ga.

Favorite Hobbies & Activities:
Horses, dogs, cats and birds.

Dr. Doug Waltman

Bacteriology Laboratory Technical Liaison and Technical Logistics Support


The purpose of the bacteriology department is to isolate and identify bacteria from poultry or poultry environmental samples. The vast majority of the samples that are submitted to the department are environmental samples for quantitative counts or for Salmonella testing.

As an NPIP authorized laboratory we are involved in testing environments of poultry houses for Salmonella. This involves isolation, confirmation, and serotyping isolates. Another part of our NPIP activities is testing samples for the presence of MG and MS using PCR.


BSA 1978 Microbiology University of Georgia

MS 1981 Medical Microbiology University of Georgia

PhD 1985 Microbiology University of Georgia

Post-doctoral 1985-1988 Microbiology University of Alabama at Birmingham

Areas of interest:

enteritidis and PCR techniques