Outbreak of duck viral enteritis in the Cauvery delta region of Tamil Nadu Thilagavathi K.*, Selvaraj J., Jaisree S.1, Ramya R.1, Babu Prasath N., Prabu P.C. Department of Veterinary Pathology, Veterinary College and Research Institute, Orathanadu, Tamil Nadu Veterinary and Animal Sciences University 1Centralized University Laboratory, Madhavaram Milk Colony, Tamil Nadu Veterinary and Animal Sciences University, Chennai, Tamil Nadu, India *Address for Correspondence K. Thilagavathi, Department of Veterinary Pathology, Veterinary College and Research Institute, Orathanadu, Tamil Nadu Veterinary and Animal Sciences University, India, E-mail: thilagapatho@gmail.com
Online Published on 27 March, 2024. Abstract Necropsy was conducted on three ducks, which were reared in the Cauvery delta region in a flock containing 3000 birds and were not vaccinated. Tissue samples like intestine, oesophagus, spleen, kidney and liver were collected for polymerase chain reaction (PCR) and histopathology. Grossly, oral cavity and oesophageal mucosa showed adhesion of diphtheritic membrane. Liver revealed multiple white necrotic foci. Epicardium showed petechial haemorrhages. Intestine mucosa revealed annular band haemorrhage, multiple petechiael haemorrhages, annular band with yellowish diphtheritic adhesion and multiple diphtheritic button ulcers of 2-3 mm diameter. PCR showed amplification produces band size at 446 bp using specific primer showed positive for duck viral enteritis virus. Histopathologically, intestinal mucosa revealed fibrinous exudate with desquamated epithelial cells, clumps of bacteria and inflammatory cells. Based on the gross lesions, PCR and histopathological lesions, the present case was confirmed as duck viral enteritis. Top Keywords Duck, Duck viral enteritis, Pathology, PCR. Top |