Vet World Vol.10 March-2017 Article-11
Research Article
Veterinary World, 10(3): 336-341
https://doi.org/10.14202/vetworld.2017.336-341
Development of nested polymerase chain reaction-based diagnosis of duck enteritis virus and detection of DNA polymerase gene from non-descriptive duck breeds of West Bengal, India
2. Department of Veterinary Pathology, West Bengal University of Animal & Fishery Sciences, Kolkata - 700 037, West Bengal, India.
3. Division of Pathology, ICAR - Indian Veterinary Research Institute, Mukteswar Campus, Mukteswar, Uttarakhand, India.
Background and Aim: The study was undertaken to detect the clinical signs, postmortem lesions of embryonated duck plague (DP) infected eggs, and histopathological changes of chorioallantoic membrane (CAM) in non-descriptive ducks of West Bengal with special reference to standardize nested polymerase chain reaction (PCR).
Materials and Methods: After postmortem of suspected carcasses, samples were collected for virus isolation and identification through specific pathogen free (Khaki Campbell) embryonated duck eggs. PCR was also done as confirmatory test after doing postmortem of duck embryos. DP specific nested PCR was standardized for better confirmation of the disease. Sensitivity of nested primers was also tested for DP virus.
Results: Gross, postmortem and histopathological changes were prominent in dead embryos. First set of primer was able to detect 602 bp fragments of DNA polymerase gene of duck enteritis virus from infected CAM. Subsequently, a DP specific nested PCR which was very much sensitive for very small amount of viral genome was successfully standardized. After NCBI blast nucleotide sequence of nested PCR product (Accession No. HG425076) showed homology with the sequences data available in GenBank.
Conclusion: The study concludes that PCR assay is very much helpful to diagnose DP disease and developed nested PCR is a double confirmatory diagnostic tool for DP. Keywords: chorioallantoic membrane histopathology, nested polymerase chain reaction, polymerase chain reaction.
Keywords: chorioallantoic membrane histopathology, nested polymerase chain reaction, polymerase chain reaction.
How to cite this article: Mandal PS, Mukhopadhayay SK, Pradhan S, Mondal S, Jana C, Patra NC, Hansda RN (2017) Development of nested polymerase chain reaction-based diagnosis of duck enteritis virus and detection of DNA polymerase gene from non-descriptive duck breeds of West Bengal, India, Veterinary World, 10(3): 336-341.
Received: 23-10-2016 Accepted: 08-02-2017 Published online: 21-03-2017
Corresponding author: Partha Sarathi Mandal E-mail: parthasarathi.vet@gmail.com
DOI: 10.14202/vetworld.2017.336-341
Copyright: Mandal, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.