Some are severe and by themselves can cause disease while others are supposedly harmless. Many are normal inhabitants in intestinal tracts of chickens and turkeys and consequently are common organisms in the birds' environment.Ī marked variation exists between different strains in their ability to cause disease. There are many different strains or serological types within the group of E. coli bacteria and the toxins produced as they grow and multiply. The symptoms of this disease is caused by the E. High, early mortality may occur as the result of navel infections. Secondary infections commonly occur as a part of the classic air sac disease syndrome as a complication with Mycoplasma gallisepticum infections.Īll ages can be affected however, the acute septicemia in young turkeys and airsacculitis in young chickens is more common in young growing birds. The disease may result from a coliform infection alone as in primary infection or in combination with other disease agents as a complicating or secondary infection. Infections may result in a respiratory disease from air sac infection, a septicemic (blood) disease from generalized infections, an enteritis from intestinal infection or a combination of any or all of these conditions. Problems range from severe acute infections with sudden and high mortality to mild infections of a chronic nature with low morbidity and mortality. Problems attributed to coliform infections are often caused by strains of the Escherichia coli organism.
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