Bird flu symptoms in chickens (backyard chicken 40 days), unvaccinated chickens, severe cyanosis (comb & feet).
cyanosis on chicken feet, but this chicken is still active to move, usually in commercial chickens with conditions such lesions, the chicken will look severe depression.
severe cyanosis, haemorrhages. no vaccination in this chicken before. Some chickens had died suddenly, two days earlier.
see video, clinical signs
cyanosis on the shank
Can you imagine how the pathological lesions that you will be able to observe in the visceral organ in this chicken?
only mild conjuctivitis
See also: Avian Malaria Pictures
no significant lesions on visceral organs
See also : Avian Influenza Pictures in Layer chickens
no significant lesions.
cyanosis in subcutaneous, shank, feet, comb (edema and cyanosis) are typical symptoms for avian influenza H5N1 followed by high and sudden death rates.
But not always we will get symptoms like the picture above. even, in many cases Avian influenza outbreak, H5N1virus, per-acute death rarely found pathological lesions in visceral organs, avian influenza diagnosis based on gross pathology is sometimes very confusing. Need a rapid test tool for early diagnosis.
Hopefully, this can be a discussion material for veterinary students in the classroom.