Several forms of Newcastle disease affect chickens, but the lentogenic strain is the most common form in the United States. Luckily, this is the least deadly of the strains and rarely causes death.

Below are four common respiratory diseases in chickens and their causes. Chronic respiratory disease (CRD) is caused by Mycoplasma gallisepticum bacteria. It is a contagious condition that ...

Avian Intestinal Spirochaetosis (AIS) is a chronic, underreported poultry disease caused by Brachyspira spp., with rising ...

For infectious causes of disease, chicken in almost all situations will show drooping eyes, heads and dropping wings with ruffled feathers. Diarrhoea is a common sign. Some diseases have specific ...

Another common problem with combs is just pecking ... because it’s [00:24:00] really obvious when a chicken has this disease because it really just shows up in the comb and the wattles.

However, controlling common animal diseases effectively ... By controlling avian bronchitis (a highly contagious respiratory disease mainly in chickens) where it is endemic among backyard poultry ...