Differential Diagnosis
- Avian Diseases

  
   
Abnormality in Suspected Diseases  Clinical Signs
       
Egg Production a. AE,EDS

b. EDS,ND,IB,Leuco.

a. Reduction of egg production without any
    other signs.
b. Production of abnormal eggs.
External Appearance

a. ND,IBD,Asper.,Cocci.,Salm.,PD,Coli.,
    Clostridia,Leuco., Histo.
b. AL,MD,Ascites.
c. AE,MD,ND,Asper.,Botulism,Salm.,Coli,
    Avitaminosis (B1).
d. AE,MD,ND,Perosis.

a. Dull and sleepy.
b. Abdominal inflation.
c. Poor carriage.
d. Disturbance of leg function
Skin a. FP.
b. Staph.
c. MD.

a. Papule
b. Edema
c. Tumors
  Comb and Wattle a. ND,Asper.,Gout.
b. IBH,Cocci.,Histo.,Leuco.
c. FP.
d. AL.		 a. Cyanosis
b. Discoloration
c. Black papule
d. Involution
  Eye a. AE.Salm.,Coli.
b. FP.
c. ILT,ND,IC		 a. Enlargement of eyeball and opacity of lens
b. Pocks in eyelid.
c. Swelling of eyelid.
  Respiratory Tract a. IC, CRD, Avitaminosis (A).
b. FP,IC,CRD.
c. ND,IB,ILT,IC,CRD,Asper.
d.ND,IB,ILT,IC,CRD,Asper.,MD,FP,Heatstroke.		 a. Lacrimation.
b. Nasal discharge and swelling of face
c. Rales.
d. Gasping
  Faeces a. Cocci.,Haemorrhagic Enteritis.
b. ND,AL,MD,IB,Salm.,IC,IBD,Leuco.,
    Avian malaria, Asper.
c. FC. 		a. Blood.
b. Green faeces.
c. Mucoid diarrhea.
  Others a. Heatstroke.

a. Sudden death.
     
 

AE : Avian Encephalomyelitis
AL : Avian Leucosis
Asp.: Aspergillosis
Cocci.: Coccidiosis
Coli.: Colibacillosis
CRD : Chronic Respiratory Disease
EDS : Egg Drop Syndrome
FC : Fowl Cholera
FP : Fowl Pox
Histo. : Histomoniasis
IB : Infectious Bronchitis
IBD : Infectious Bursal Disease
IBH : Inclusion Body Hepatitis
IC : Infectious Coryza
ILT : Infectious Laryngotracheitis
Leuco: Leucocytozoonosis
MD : Marek's Disease
ND : Newcastle Disease
PD : Pullorum Disease
Salm. : Salmonellosis
Staph. : Staphylococcosis