Abstract:

Avian intestinal spirochetosis (AIS) is an infection caused by pathogenic species belonging to Brachyspira genus in commercial layer and broiler breeder hens. AIS creates the economic losses in consequence of the growth retardation, decrease in egg production, increase in feed consumption, faecal staining of egg shells and lower egg quality. The presence of Brachyspira spp. in poultry has been revealed in many countries. In Turkey, to the best of our knowledge, there are not any reports on the isolation of Brachyspira spp. in AIS suspicious and/or healthy avian species. Our field observations shows dirty egg problems are intense in commercial laying hens in our country. This review study aimed to give information about the AIS causing dirty egg problems and draw attention to this infection.

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