Dwars R M, Smit H F, Davelaar F G
Department of Poultry Diseases, University of Utrecht, AA Doom, The Netherlands.
Avian Pathol. 1992 Sep;21(3):513-5. doi: 10.1080/03079459208418870.
Laying hens of 20 weeks of age were infected with avian intestinal spirochaetes (isolate 1380). After 20 weeks it was found that most infected birds shed 10(7) or more spirochaetes/ml caecal faeces. Faecal dry matter content was not significantly influenced by the infection, but the amount of crude fat in the faecal dry matter increased by more than 25%.