Its defined as a Newcastle disease infection where mortality not exceed 2% by caused by either virulent & non virulent. this the primary signs of Newcastle disease infection.
To early diagnosis of Ndv infection in flock
To prevent further infection to others birds
To indicate Titre levels at vaccinated birds
Minimize managerial & operations costs
Reduced treatment costs
Proventriculur musles are swallon & thickned upto 5 times then normal. glands are starting dilated & later hemorrhagic.
this is the pathognomic leison of primary ND infection in poultry.
Newcastle Disease: Strain, Etiology, Clinical Sign,Postmortem Findings & Treatment
Low pathogenic Avian Influenza(LPAI) in Poultry
Postmortem Findings Of Low Pathogenic Avian Influenza (LPAI) In Poultry