African Journal of Pig Farming

African Journal of Pig Farming ISSN: 2375-0731 Vol. 9 (1), pp. 001-006, January, 2021. © International Scholars Journals

Full Length Research Paper

Seasonal emergence of swine erysipelas in hilly state Nagaland, Northeast India

Nagendra Nath Barman1*, Debojyoti Borkotoky2, Biswajyoti Borah1, Anjan Jyoti Nath3, Papiya Das1 and Durlav Prasad Borah1

1Department of Microbiology, College of Veterinary Science, Assam Agricultural University, Khanapara campus, Guwahati-781022,  Assam, India.

2Subject Matter Specialist (Animal Science), KVK Phek, ICAR-NRC on Mithun, Nagaland-797007,  India.

3Department of Microbiology, Lakhimpur College of Veterinary Science, Assam Agricultural University, Joyhing, North Lakhimpur- 787 051, Assam, India. *Corresponding author. E-mail: nnbarman@gmail.com.

Accepted 20 September, 2019

Abstract

Seasonal outbreaks of swine erysipelas have been reported in back yard pig farms in the Phek district of Nagaland, India. The alpha haemolytic isolate of Erysipelothrix rhusiopathiae was recovered on blood agar from the clinical samples. The organisms were confirmed microscopically, biochemical analysis as well as by polymerase chain reaction (PCR) amplification of 16S rRNA gene and sequence analysis. These Nagaland isolates (KT160358, KT160359) were closely related to the type spp. E. rhusiopathiae in phylogenetic analysis and forms the same clad with Chineese isolates of swine and murine origin indicating an epidemiological link. The isolates were found to be most sensitive to oxytetracycline and responded to treatment. Swine erysipelas occurred in Phek district in a season due to sudden change of weather and temperature. Pigs exposed to such predisposing factors probably favoured to propagation of already persisted organisms in pigs. This is the first confirmed case of E. rhusiopathiae infection from the NE states of Nagaland, India.

Key words: Swine erysipelas, Erysipel othri x rhusiopathiae, pig, polymerase chain reaction (PCR) Nagaland, India, Oxytetracycline.