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Prevention & Control of Poultry Diseases
Prevention and control of poultry diseases is one of the most important factor for the profitability of poultry farming business. This prime fact provides a brief overview of the importance of knowing your cost of production, and benchmarking to monitor business profitability plus how to use financial ratios to gauge future viability. Following basic factors should be kept in mind for preventing and controlling of poultry diseases.
Diseases of Poultry
The two most serious poultry diseases that must be kept out of poultry flocks are Newcastle disease and avian influenza. Although these two devastating diseases are not present in commercial poultry in Australia, the poultry industry is at risk from their introduction. The compulsory vaccination program against Newcastle disease (ND) has helped protect the industry against both endemic and exotic ND. Occasionally diseases occur in Australian poultry flocks. Some are controlled by vaccination or medication strategies. Others are controlled by keeping them out of farms.
Diseases which are controlled by vaccination include:
- Infectious laryngotracheitis
- Chronic respiratory disease
- Fowl pox
- Fowl cholera
- Newcastle disease
- Egg drop syndrome 76 (EDS 76)
- Infectious bronchitis
- Avian encephalomyelitis
Some diseases can be controlled by both vaccination and keeping them out of farms. These include coryza; chronic respiratory disease, caused by Mycoplasma gallisepticum; infectious laryngotracheitis; lice and mite infestations; chlamydiosis; blackhead; and internal parasites.
How to Keep Diseases Out: Disease can enter your farm via carrier birds, people, wild birds, day-old chickens, equipment, wind, pets and insects.
Birds: Apparently healthy birds carrying a disease organism can be a source of infection of other birds. If disease-carrying started pullets are introduced onto an uninfected farm they can spread disease. Backyard, show and aviary birds can also carry disease.
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