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Poultry Diseases and their Causes

Institution: Poultry Diseases and their Causes

Course: Poultry Farming

Content Category: Articles

Posted By: samsonchemjor

Document Type: DOCX

Number of Pages: 8

Price: KES 50
 
    

Views: 393     Downloads: 0

Summary

Poultry diseases and their causes.

Many factors can contribute to diseases in your flock. By being aware of their causes and how they spread, you can put practices into place to reduce the risk of disease occurring.
Disease can often lead to reduced performance in areas such as breeding, growth rate, feed conversion and egg production. Disease can also affect appearance in show birds and racing ability in pigeon flocks.
Although there are many possible causes of disease, it is often a combination of factors that make birds sick.
Infectious agents
Infectious agents are living organisms that cause disease or illness and can be spread from bird to bird. These include 'germs' (bacteria, viruses, fungi), external parasites (lice and mites) and internal parasites (worms, coccidiosis, blackhead). Infectious agents that cause disease are also referred to as pathogens.
Environmental conditions
Some environmental conditions can also make birds sick. Unlike infectious agents, the illness is not spread between birds. When the environment affects the health of birds it is usually because the animals are unable to adapt to the conditions. Environmental factors that can cause disease include:
• poisons
• injury
• nutritional deficiencies
• poor air quality
• temperature extremes
• physical stress
• exposure to disease carrying vermin and insects such as rodents and darkling beetles.
Stress
Severe physical stress can reduce the birds' ability to resist disease. Flocks rely on people to give them:
• appropriate feed and clean, uncontaminated water
• appropriate environmental conditions
• shelter.
Without these, birds may suffer stress from fear, malnutrition, dehydration, over-crowding, dirty conditions and extremes in climatic conditions.
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