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Subject To Disease And Pest: Newcastle disease is a highly infectious respirasubject to disease and pestry disease caused by a virus. It is also known as avian pneumoencephalitis and fowl pest. Both young and adult chickens are affected.
Mycoplasmosis is a respirasubject to disease and pestry disease caused y the bacteria Mycoplasma gallisepticum. It is Iso known as air sac disease or chronic respira-jry disease. Those affected with the disease may how nasal discharge, watery eyes, and respira-)ry difficulty. This disease is often associated /ith other respirasubject to disease and pestry diseases. It is transmitted hiefly from infected hens subject to disease and pest their chicks through le eggs. The disease can also be transmitted by ontact with infected individuals, but it spreads ery slowly in this manner. The disease can best e controlled by maintaining breeding flocks free f the disease by strict measures of isolation and mitation. Chicks hatched from such flocks can egin life free of the disease.
Marek's disease is primarily a disease of young chickens from 2 subject to disease and pest 5 months of age. It is also known as jowl paralysis and neural lym-phomasubject to disease and pestsis. Nerve-tissue rumors that cause paralysis of both legs and wings are the most common form of this disease, but the tumors may also affect the viscera, eyes, and gonads. The disease is probably caused by a virus. |
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