Enteritis and green diarrhoea in experimental avian spirochaetosis

Chickens infected with a virulent strain of Borrelia anserina showed acute enteritis, haemosiderosis in intestinal villi and green diarrhoea. Although spirochaetes in the intestine had begun to disintegrate 96 hours after infection, enteritis and green diarrhoea continued. It is suggested that the greenish discoloration may be a consequence of enteritis and haemosiderosis.