STUDIES ON THE PREVALANCE OF HYDATIDOSIS IN SHEEP AND NATURALLY INFECTED DOGS
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Date
2017
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Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu
Abstract
Studies on the prevalence of hydatidosis in sheep and naturally infected dogs were conducted during August 2015 to July 2016 in 1000 sheep selected randomly at the organised municipal slaughter houses of Jammu and 50 dogs each visiting TVCC, R.S. Pura for routine check up and in stray dogs in an around slaughter house premises respectively. Prevalence of hydatidosis in sheep based on systematic postmortem examination of different visceral organs involved viz. lungs and liver revealed an overall prevalence of 6.4 per cent. Lungs (43.75 %) and Liver (39.06 %) were the most common predilection sites for hydatid cysts whereas mixed infestation in both lungs and liver were observed in 17.18 per cent cases. Out of a total of 106 cysts, small cysts of the size (0-4 cm) were seen in 51.88 per cent and medium cysts of the size (4-8 cm) in 48.11 per cent of cases whereas prevalence of fertile and infertile cysts were 52.83 per cent and 47.16 per cent respectively. Lean sheep had a higher cyst count as compared to medium sheep. Highest (10.85 %) prevalence of hydatidosis was observed in sheep >2 years of age with no significant difference sex-wise. Sheep slaughtered originating from outside the J&K state were the highest (7.33 %) victims. Studies on the prevalence of echinococcosis in naturally infected dogs by faecal examination revealed maximum prevalence of Strongyles (14 %) followed by Toxocara spp (12 %), Taeniid (8.00 %) and Trichurids (3 %) whereas latex agglutinition test diagnosed only 10 percent dogs for echinococcosis followed by 14.44 per cent by anti-dog echinococcus antibody (IgG) direct elisa test as a cofirmatory test. Comparison of latex agglutinition test and anti-dog echinococcus antibody (IgG) direct elisa test for diagnosis of echinococcosis in naturally infected dogs using kappa coefficient value proved that the tests were very good in agreement and are most reliable tests for disease diagnosis as echinococcosis is a public health hazard.
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