AN OUTBREAK OF AVIAN PASTEURELLOSIS IN A QUAIL FARM IN TAMIL NADU

S.U. Abdul Latheef; S. Ramesh; S. Hemalatha; A. Ashok Kumar; Ganne Venkata Sudhakar Rao; G. Balakrishnan

doi:10.56093/ijvasr.v52i1.137565

Authors

S.U. Abdul Latheef M.V.Sc Student, Department of Veterinary Pathology, Madras Veterinary College TANUVAS, Chennai- 600 007
S. Ramesh Professor, Department of Veterinary Pathology, Madras Veterinary College, TANUVAS, Chennai- 600 007
S. Hemalatha Professor, Department of Veterinary Pathology, Madras Veterinary College, TANUVAS, Chennai- 600 007
A. Ashok Kumar Professor, Department of Poultry Science, MVC, Chennai - 600 007
Ganne Venkata Sudhakar Rao Professor and Head, Department of Veterinary Pathology, Madras Veterinary College, TANUVAS, Chennai- 600 007
G. Balakrishnan Professor and Head, Central University Laboratory, TANUVAS, Madhavaram Milk Colony, Chennai – 600 051

https://doi.org/10.56093/ijvasr.v52i1.137565

Keywords:

Japanese quails, gross pathology, culture test, PCR assay, enrofloxacin

Abstract

An outbreak of pasteurellosis was recorded in a local Japanese quail farm in Tamil Nadu with a flock capacity of 20,000 birds per batch. Mortality was reported in new arrival of 2000 birds of 14 week old quails. Mortality was recorded to be increasing from third day to 10th day of arrival with a total mortality of 410 birds at the rate of 20 birds per day for three consecutive days and 30 to 60 for seven consecutive days with the history of depression, ruffled feathers, discharge of mucous from the mouth and nostrils, anorexia, diarrhoea and respiratory distress. Necropsy was performed on dead birds which revealed numerous greyish necrotic foci scattered on the entire parenchyma of the liver on gross examination. Heart showed petechial haemorrhages on the pericardium while other organs namely kidney, intestine, spleen and lungs showed only congestion. Impression smear of the liver revealed presence of bipolar organisms on microscopic examination. Cultural examination of heart blood swab and PCR assay carried out on liver tissues confirmed the presence of Pasteurella multocida. Based on the postmortem examination and laboratory findings, diagnosis was confirmed as pasteurellosis and all the other ailing birds were treated with enrofloxacin orally @ 5 mg/kg body weight for 7 days. The treated birds became active with normal feeding habits after 10 days of treatment.

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