The content is just an excerpt from the complete note for JSS 2 Second Term Agricultural Science Lesson Note – Mode of Transmission of Disease Causing Organisms. Check below to download the complete PDF
TOPIC: Animal Pests and Disease Control (contd)
CONTENT:
Mode of transmission of farm animals
Sub-Topic 1: Mode of Transmission of disease causing Organisms
The following are the mode of transmission of farm animals diseases from one animal to the other.
- Airborne
- Animal carriers e.g visitors, attendants etc.
- Direct contact with infected animals
Types of Diseases based on mode of transmission
Diseases of livestock could be:
Infectious disease: Infectious disease affects animals without physical contact with the infected animals. It can be transmitted to healthy animals through water, air, or feeds. eg Anthrax, Coccidiosis, and Fowl typhoid.
Contagious disease: Contagious disease affect animals when there is physical contact with the infected ……
Farm animal diseases/ Symptoms of farm animal diseases/ Mode of transmission
The table below shows the name of disease, the causative organism, the animals affected, symptoms, mode of spread and control measures.
| Name of
Disease |
Causative organisms | Animals
Affected |
Symptoms | Mode of spread | Control measures |
| Mastitis | Bacteria | Cattle, sheep, goat, pig | The udder becomes swollen, reddened and painful | Water, food,
injuries on the udder, milking marching |
Good hygiene, get rid of flies, disinfect milking marching |
| Contagious abortion | Cattle, sheep, goats, pigs | Irritation, catarrhal condition in the womb | Servicing by infected
bull, flies, contaminated pasture
|
Vaccination, contact vet. Doctor. | |
| Anthrax | Cattle, sheep, goats | – Blood stained discharges from mouth or nostril
– death – swelling in the neck |
Contact with infected
animals & their products |
Vaccination, disinfect pens, burn or burry dead animals. | |
| Tuberculosis | Cattle, sheep, goats, poultry, pigs | Persistent cough, emaciation, death | Contact with discharge or sputum of infected animals | No treatment. Kill and burry infected animals.
Vaccination |
