Pharmacotherapy of Chronic Respiratory Disease in Poultry
PST 06107
Basic Veterinary Pharmacology
Session 18: Pharmacotherapy of Chronic Respiratory Disease in Poultry
Learning Tasks
By
the end of this session students are expected to be able to:
Define Chronic Respiratory Disease in Poultry
List signs and symptoms of Chronic Respiratory Disease in Poultry
Describe pharmacological treatment of Chronic Respiratory Disease in Poultry
Describe Control and Prevention of Chronic Respiratory Disease in Poultry
Activity: Buzzing
What
is Chronic Respiratory Disease in
Poultry?
Definition of Chronic Respiratory Disease in Poultry
Chronic Respiratory Disease (CRD) also called
air sacculitis
is an infection of chicken and turkeys caused by
Mycoplasma
gallisepticum
.
The disease is transmitted in eggs or by indirect contact
The disease is characterized by respiratory signs and lesions.
Once started it follows a prolonged course in a flock.
Concurrent
infections such as infectious bronchitis virus, Newcastle disease virus,
Escherichia coli
,
Pasteurella
multocida
and
Haemophilus
paragallinarum
or increased level of dust in the environment predispose to CRD.
Signs
and Symptoms of Chronic Respiratory Disease in Poultry
Signs
of CRD in a flock develop slowly and are usually manifested by drop in egg and meat production.
They show varying degrees of respiratory distress, with slight to marked
rales
, difficulty in breathing, coughing, and/or sneezing.
The lesions include
airsacculitis
,
fibrinous
perihepatitis
and adhesive pericarditis
.
Chickens Infected with MG Have Nasal and Eye Discharges
Pharmacological
treatment of Chronic Respiratory Disease in Poultry
Tetracycline
Tiamulin 10%, 1:300-600 diluted in drinking water for 5 days, or
Erythromycin 1: 10000 liters of drinking water for 3 days, or
Tylosin, 0.5% in drinking water, or
Activity:
Brainstorming
What
are the prevention measures for Chronic Respiratory Disease??
Prevention
and Control of Chronic Respiratory Disease in Poultry
Control
and Prophylaxis
Improve the management, husbandry or nutrition
reduce dust in the house
remove
accumulated litter
I
mprove
ventilation
Evaluation
What
is Chronic Respiratory Disease?
What are the common signs and symptoms Chronic Respiratory Disease?
What is the pharmacological treatment of Chronic Respiratory Disease?
What are the control measures against Chronic Respiratory Disease
References
Riviere
J. E.,
Papich
M. G. (2009).
Veterinary Pharmacology and Therapeutics
(9
th
Ed) Iowa, Wiley-
Blackwel
Publishers
Hsu
W. H. (2008).
Handbook of Veterinary Pharmacology
(1
st
Ed) Iowa, Wiley-
Blackwel
Publishers
Kuafmann
J, (1996).
Parasitic infections of domestic animals
, (2
nd
ed
).Berlin,
Birkhäuser
Verlag
Press
Hoare
E. W. (2013).
A manual veterinary therapeutics & pharmacology
(2
nd
ed
),New
York, Forgotten Books
Press
Maddison
. J. (
ed
) (2008).
Small Animal Clinical Pharmacology
, (2nd
ed
). Philadelphia, Saunders Elsevier Limited
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