Year: 2018 | Month: October | Volume 8 | Issue 5
Occurrence and Pathology of Cryptosporidium in Bovine Calves of North and Central India
Abstract:
A total of 438 samples including 397 from clinical cases of diarrhoea and 45 intestinal content/ tissues of necropsied calves up to 3 months of age were collected from November, 2016 to February, 2018 from the randomly selected organized farms of Uttar Pradesh (242), Madhya Pradesh (178) and Chhattisgarh (15). The samples were screened for the presence of Cryptosporidium oocysts by staining the faecal smear and tissue sections by modified Ziehl-Neelsen (ZN) method. An overall occurrence of Cryptosporidium spp. was 7.30% (32/438). The occurrence in Uttarpradesh and Madhya Pradesh was 11.16% and 2.81%, respectively. The pathogen was recorded in Pratapgarh, Meerut, Aligarh and Bareilly districts (U.P.) and Indore (M.P.) districts with higher incidences in Meerut (p = 0.178 and Pratapgarh districts (14.2%) (p = 0.315). The prevalence was higher in the age group of 0-20 days, calves of the dam in their first parity, calves with watery diarrhoea and during monsoon season. Oocysts of Cryptosporidium spp. and Eimeria spp. were observed in the histopathological sections of the intestine of one and two calves, respectively.
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