POULTRY MANIA
Newcastle Disease Clinical Signs
It’s defined as a Newcastle disease, Clinical signs at primary stages infection where mortality does not exceed 2% caused by either virulent & non-virulent this the primary sign of Newcastle disease infection. Newcastle Disease Clinical Signs is important for early prevention by appropriate follow-up treatment.
Importance
To early diagnosis of Nov infection in a flock
To prevent further infection to other birds
To indicate Titre levels at vaccinated birds
Minimize managerial & operations costs
Reduced treatment costs
Clinical Signs At Primary Stages
Dyspnoea: Respiration difficulty by tracheal & airsac inflammation
S
Severe prostration: Birds getting down & prostration due to hypertharmic state when disturbances of thermoregulatory center at hypothalamus.
Faeces: Not turn fully greenish colour due to birds still intake feed to develop defense mechanism against ND
faeces from partially anorexic in primary stagews of NDV infection
greenish faeces with urate are common at primary stages in NDV infection
Head Region :Some birds show nasal discharge with oedematous head along with swallon infraorbital sinuses
Huddling at near heat source
Egg colors :Dual color combined with half part whites & half part brown color at brown color laying hen.
Postmortem Findings
Proventriculur muscles are swallow & thickened up to 5 times than normal. glands are starting dilated & later hemorrhagic.
this is the pathognomic lesion of primary ND infection in poultry.
TREATMENT
The best treatment for the Newcastle disease is performed in poultry in three ways-
Migration of poultry from the affected farm
the best choice of some drugs
Vaccination at earlier stages in healthy birds.
More details in this link- THE ULTIMATE NEWCASTLE DISEASE TREATMENT
See Also
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