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Product title :

Prevalence of ovine footrot in the tropical climate of southern India and isolation and characterisation of Dichelobacter nodosus

Author(s) : D. Sreenivasulu, S. Vijayalakshmi, D. Raniprameela, A. Karthik, S.A. Wani & I. Hussain

Summary :

No. 06122013-00022-EN

The present communication records the first determination of the prevalence of footrot in the unexpected situation of the tropical climate of Andhra Pradesh and Tamil Nadu, two states in southern India where the maximum temperature rises to 42°C. In total, 73 outbreaks of footrot in Nellore brown sheep were investigated in 11 districts of Andhra Pradesh and one district of Tamil Nadu during the period March 2009 to March 2011. The overall prevalence of ovine footrot was 15%, with severity scores of 2 to 4 (lesion severity scale 0 to 4). The outbreaks occurred mostly during the rainy season, which is usually from June to December. From a total of 1,050 samples of lesions in naturally infected sheep, 478 (45.5%) were positive for Dichelobacter nodosus.

Keywords
Dichelobacter nodosus – Footrot – Ovine footrot – Serogroup – Sheep – Southern India – Virulent footrot.

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