Quote:
M gallisepticum infection is commonly designated as chronic respiratory disease in chickens and as infectious sinusitis in turkeys. Infection may also be seen in pheasants, chukar partridges, and peafowl. Infection in pigeons, quail, ducks, geese, and psittacine birds should be considered. Passerine-type birds are quite resistant, although M gallisepticum is the major cause of natural outbreaks of conjunctivitis in wild house finches (Carpodacus mexicanus) in the eastern USA. The disease is worldwide. Its effects are most severe in large commercial operations during winter.
The only way to keep your flock totaly safe is to raise them in a sterile bubble but most people do ok raising poultry.
Steve
I would not say you need to raise them in a sterile bubble but you should practice basic biosecurity. Only get eggs, chickens and poults from clean tested birds free from MG. If you do not know, ask if there birds are tested.
Wow! You left this part out in your copy and paste thread.
In the USA, most breeder flocks are free of M gallisepticum ,
and outbreaks are due to lateral transmission from infected chickens; however, in some parts of the world, egg transmission is a major source of infection. The incidence of egg transmission is highly variable, ranging up to 30-40% during the first 2 mo after infection of susceptible birds in production. The transmission rate then lessens and is inconsistent (0-5%) until the end of production. Birds infected before the onset of production transmit through the egg at a much lower rate, if at all. The infection may be dormant in the infected chick for days to months, but when the flock is stressed, aerosol transmission occurs rapidly and infection spreads through the flock. Live virus vaccination, natural virus infection, cold weather, or crowding may initiate the spread. In addition, the infection may be carried by personnel (especially from an infected to a clean flock), fomites, or introduction of infected birds. In many flocks, the source of infection cannot be determined.
The epithelium of the upper air passages is most susceptible to infection; however, in severe, acute disease the infection is also found in the lower respiratory tract. There is a marked interaction between respiratory viruses, Escherichia coli , and M gallisepticum in the pathogenesis of chronic respiratory disease. Once infected, birds remain carriers for life.
I'm new to the whole cut and paste for each and every thread thing.
Some are much better than me. I try to base my responces on personal experience.
Steve