Molecular detection and seroprevalence of leptospirosis among aborted sows in Northern Kerala, India
Present study envisaged the molecular identification of pathogenic Leptospira spp. from cases of abortions, stillbirths and foetal mummifications in pigs and to confirm the seroprevalence of leptospirosis among pigs from organised and semi-organised farms of Northern Kerala. Whole blood (n=21) from...
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| Published in: | Journal of Veterinary and Animal Sciences Vol. 54; no. 4 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Online Access: | Get full text |
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| Summary: | Present study envisaged the molecular identification of pathogenic Leptospira spp. from cases of abortions, stillbirths and foetal mummifications in pigs and to confirm the seroprevalence of leptospirosis among pigs from organised and semi-organised farms of Northern Kerala. Whole blood (n=21) from aborted sows and tissue (n=32) samples from aborted foetus tested negative for presence of lipl32 gene of Leptospira by polymerase chain reaction. From the epidemiological data collected, the highest occurrence of swine abortion was found within the age group of one to two years (81.25%) in Large White Yorkshire (56.25%) and during December (40.62%). It is observed that majority of animals with reproductive disorders were housed indoors, housed individually and not fed with additional supplements and hotel wastes. All the sows were regularly dewormed and vaccinated. Haematological studies of aborted sows showed marked anaemia, leucocytosis, granulocytosis and monocytopaenia. Sera samples (n=34) collected from pigs with history of abortion were subjected to Microscopic Agglutination Test (MAT) and it was observed that Leptospira interrogans serovar Icterohaemorrhagia was the most prevalent serovar (32.35 per cent, followed by serovar Tarassovi (23.53 per cent), Pomona (14.71 per cent), Canicola (11.76 per cent), and Grippotyphosa (8.82 per cent). An overall seroprevalence of 52.94 per cent for Leptospirosis among pigs was observed. |
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| ISSN: | 0971-0701 2582-0605 |
| DOI: | 10.51966/jvas.2023.54.4.1061-1071 |