Intussusception of jejunum in pullet naturally infected with coccidiosis: A case report M. Palanivelu*, M. Asok Kumar, S. D. Singh, Pawan Kumar, R. Barathidasan, Shyama N. Prabhu and Pragya Bhadauria 1 Avian Diseases Section, Division of Pathology, Indian Veterinary Research Institute, 1 Central Avian Research Institute , Izatnagar – 243 122, Bareilly, Uttar Pradesh Received: 05.12.13; Accepted: 20.02.14 ABSTRACT Palanivelu, M., Asok Kumar, M., Singh, S. D., Kumar, P., Barathidasan, R., Prabhu, S.N. and Pragya, B. (2014). Intussusception of jejunum in pullet naturally infected with coccidiosis: A case report. Indian J. Vet. Pathol., 38(2) : 135-136. This paper describes a rare case of jejunal intussusception in a pullet that suffered from severe diarrhea and succumbed to death. Based on necropsy and microscopic examination, the recorded case of intussusception was found to be associated with severe coccidial enteritis. It is suggested on the basis of present findings and earlier published reports that, intussusception in birds could be attributed to conditions that causes reduced feed intake, hyperirritability, and increased intestinal motility. Keywords: Coccidiosis, enteritis, intussusception, jejunum, pullet *Corresponding author: email: drpalvet@gmail.com Indian J. Vet. Pathol., 38(2) : 135-136, 2014 Intussusception of intestine in birds is a rare condition occurs often as result of increased intestinal motility 1 . Among animals, this condition is notably reported in dogs, horses and small ruminants but very few cases have been recorded in poultry as evidenced by availability of very scanty published reports. However, a slow increase in the incidence is being observed in different parts of the world over a period of time 2 . Intussusception in poultry has been found to be associated with several enteric diseases that causes increased intestinal motility such as coccidiosis, ulcerative enteritis and heavy worm infestation 3 . These Fig. 1. Jejunum showing telescoping of its anterior segment into posterior portion (arrows); Fig. 2. Serosa of affected portion showing congestion, hemorrhages and multiple necrotic foci; Fig. 3. Lumen of telescoped intestine showing hemorrhagic contents and necrotic debris; Fig. 4. Smear from intestinal content showing un-sporulated Eimeria oocysts x200.