Sheep Breeding Research Station - Tamil Nadu Veterinary and Animal Sciences University, Sandynallah - 643 237, India.
1Dept. of Parasitology, Madras Veterinary College, Chennai, India.
Mortality rate in sheep due to Fasciola gigantica in Nilgiris district-of Tamil Nadu was studied between April 1998 and March 1999. The overall mortality was 19.7%. High mortality rate (15.8%) was observed in summer followed by Southwest monsoon (3.8%) and winter (0.6%) respectively. No mortality was recorded during Northeast monsoon season.