Farm Animal Disease Control: Virus Disease Cont'd

 

Agricultural Science JSS 2 Second Term

WEEK 7

Farm Animal Disease Control: Virus Disease Cont'd

Performance Objectives

Student should be able to

 

    1. State two preventive and control measures

  Content

1. Newcastle disease (NCD): This is a very common disease among poultry birds in Nigeria. It attacks all categories of poultry birds i.e the young and the old are all susceptible.

Causal organism: Virus

Symptoms: Sneezing, coughing, nasal discharge, difficult breathing, lack of appetite, watery greenish diarrhoea, paralysis of the legs or wings and laying of soft-shelled eggs.

Mode of transmission: Contact with faeces of infected birds, nasal discharge and materials contaminated by the virus.

Control measures: Routine vaccination using freeze-dried NCD vaccine given either intraocular…