Poultry

Question 1

What is Avian encephalomyelitis?

Answer 1

an infectious viral disease primarily affecting chicks and occasionally poults.
Ataxia (loss of equilibrium), paralysis and tremors of the head, neck, or the whole body are observed. In adults, the virus causes a drop in egg production and embryo death in fertile eggs.

Question 2

What is the cause of avain encephalomyelitis?

Answer 2

A 20-30 nm diameter picornavirus that can survive for a considerable period in the
poultry house.
AE virus are enterotropic and are spread in feces

Question 3

How is avain encephalomyelitis transmitted

Answer 3

Fecal-oral

Question 4

When do clinical signs appear in birds infected with avian encephalomyelitis

Answer 4

clinical signs appear when chicks are 1-2 weeks of age

Question 5

Clinical signs associated with avian encephalomyelitis

Answer 5

signs of dullness followed by ataxia
Fine trembles
Eventually, the chicks are incapable of moving and die from trampling, starvation and dehydration.

Question 6

When do you vaccinate for avian encephalomyelitis

Answer 6

Breeder flocks should be vaccinated at least 4 weeks before onset of egg production

Question 7

What is the helminth parasite that carries Histomonas meleagridis, the protozoan that causes blackhead in
turkeys?

Answer 7

Heterakis gallinarum