i) Virus
ii) Symptoms
? Loss of appetite
? Difficulty in breathing
? Beaks remain wide open and neck strained
? Dullness
? Birds walk with staggering motion
? Passes out watery, greenish diarrhoea.
? Birds lay soft shelled eggs.
iii) Control
? Vaccination
? Quarantine
? General hygiene
? Killing and burning of infected birds
john3 answered the question on January 22, 2018 at 14:17
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