Post on 18-Jul-2020
The Role of the
Diagnostic Laboratory
in the Poultry Industry
Joel L. Cline
DVM, MAM, Diplomate ACPV
J. B Taylor Veterinary Diagnostic Laboratory
Elba, Alabama
Elba, Alabama
J. B. Taylor Diagnostic Lab
J. B. Taylor Diagnostic Lab
J. B. Taylor Diagnostic Laboratory
What is Our Role?
Regulatory
Promote Commerce
Diagnostics
What is Our Role?
Regulatory
Promote Commerce
Diagnostics
Surveillance!
What is Our Role?
Diagnostics
Monitoring/Surveillance
Diagnostics Treatment
Surveillance Prevention
A New Discipline?
Production Pathology
Pathology Production
Medicine
Production Pathology
Population….Not individuals
Prevention = $
Production Pathology
Population….Not individuals
Prevention = $
An Excellent Example!
National
Poultry
Improvement
Plan
Regional Poultry
Six million broilers per week.
312 million broilers per year.
Leading quail producing
county in Alabama.
Other non-commercial poultry.
My favorite cages
Noncommercial Poultry
Encourage submissions.
Encourage Participation in the NPIP.
Underlying surveillance.
Keep in mind the bigger picture.
Comparison of Disease Incidence of
Commercial and Noncommercial
Poultry in North Alabama.
Christenberry, Hoerr, Lockaby, Li, Bright and Waldrep
IBV, NCD, Fowl Cholera
Vs.
Mg, Ms, Coryza
1.84 Miles
194.25 miles
Infectious Bronchitis
0
20
40
60
80
100
120
140
160
Procedures Total + Ark DPI Mass Conn 94% Ark Variant
Effective Surveillance
Effective Surveillance
Definition of essential information to collect,
including case definitions
Systematic collection of information
Organization and analysis of information
Implementation of preventive measures based
on information collected
Evaluation of preventive measures.
South Alabama Reovirus
One company experienced many down birds on
several farms and this was associated with poor
performance at the plant. The problem was
initially thought to be associated with one
breeder flock. The company suspected the
involvement of Reovirus
Reovirus
Definition of essential information, including case definitions:
Historic collection of gross lesions, bacteriology, virus isolation, serology and histopathology.
Surveillance relied heavily on histopathology.
Systematic collection of information:
Ongoing surveillance
Organization and analysis of data:
Case Records
Reovirus
Implementation of preventive measures based on the information:
Development of an autogenous vaccine.
Evaluation of preventive measures:
Gross lesions, bacteriology, virus isolation, serology and histopathology.
Surveillance – Historical data and local baselines, cooperation, dissemination Rapid and effective decision making
Thank You
Scott Helton, Tammy Watson and Billy Parker – J. B.
Taylor Diagnostic Laboratory, Elba, AL.
The Thompson Bishop Sparks Diagnostic Laboratory
and Dr. Sara Rowe – Interim Director, Auburn
Alabama.
The Alabama Department of Agriculture and Industries
and Commissioner John McMillan.
Alabama Poultry and Egg Association and Mr. Ray
Hilburn.
Thank You