Low Pathogenic Avian Influenza
Low pathogenic Avian Influenza(LPAI) is a viral disease of poultry which is caused by Avian influenza virus A under the family of Orthomyxoviridae. There are many subtypes of avian influenza virus but LPAI just only one among others. Avian influenza refers to the disease caused by infection with avian (bird) influenza (flu) Type A viruses in poultry. its also known Bird Flu & in earlier called Fowl Plaque.
Postmortem findings are species to species but not same all birds, mortality also varies birds to birds like a large number of broiler birds can be died just in few days but not exceed 10% in laying hen.
hemorrhage on the trachea on the trachea is the commonest form during the winter season. Ciyghing with jerking head, gurgle sound, and open beak respiration are the common symptoms of the trachitis.
Moderate hemorrhage on the trachea. this tracheal lesion derived from the broiler flock which affected by the LPAI along with other organisms. Severe dyspnoea and hacking cough with higher mortality in this situation.
Slight hemorrhage on trachea at the earlier stage of Low Pathognomonic Avian Influenza (H9N2).This is the most common scenario of LPAI virus infection where sudden decrease feed intake along with egg production. More importantly, the egg became turn brown to white and the absence of the cough.
Thickened, creamy with pus deposited on
Airsac on 20 days broiler. Some opportunistic organism such as mycoplasma, escherichia coli and wide range of gram-negative bacteria with LPAI
pinpoint hemorrhage at the outer part of proventriculus in laying chicken
Pinpoint hemorrhage on the outer part of the proventriculus. the pathogenesis of the blood occurring clearly unknown The image has been collected from the 60 weeks layer birds.
In Egg Follicles
Md Ramzan Ali, DVM, Poultry email@example.com