Table-1.

Type and number of collected samples from examined ducks.

Type of samples	Duck condition
	Apparently healthy*(n=100)		Diseased ducks (n=100)
	Live (n=50)	Freshly slaughtered (n=50)	**Live (n=50)	***Freshly dead and emergency slaughter (n=50)
Tracheal swab	50	-	50	-
Heart blood	-	50	-	50
Lung	-	50	-	50
Liver	-	50	-	50
Spleen	-	50	-	50
Total	50	200	50	200

^*Apparently healthy birds were shown normal feed intake, smooth non-broken feathers, shiny eyes, and lack of any abnormal discharges from body orifice and no gross abnormalities.

^**Diseased ducks were suffered from respiratory distress and diarrhea.

^***Postmortem examination revealed pneumonia, airsacculitis, and liver congestion with necrotic foci