Sukumar, KSuresh, PDorairajan, NSadasivam, PTANUVAS2019-12-302019-12-302005-01http://krishikosh.egranth.ac.in/handle/1/5810138955TNV_IJAS_2005_75(1)29-30The commercial layer farms (15) in Namakkal area were monitored throughout the year, out of which 7 showed lesions of gangrenous dermatitis. 'The age group involved was between 8 and 16 weeks. The mortality was 10 to 20% of the total flock strength. Flocks with the history of IBD outbreak showed higher mortality compared to others.enVeterinary ScienceArticle