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  • Title: Cryptosporidium parvum--propagation of oocyst in neonatal calves.
    Author: Ananthasubramanian M, Ananthan S.
    Journal: Indian J Pathol Microbiol; 1997 Oct; 40(4):469-72. PubMed ID: 9444857.
    Abstract:
    Shedding of Cryptosporidium parvum oocyst was studied in experimentally infected Jersey-Sindhi cross bred calves. Three 7 day old bull calves housed in isolation were orally infected with 10(8) oocysts of Cryptosporidium parvum. The prepatent and patent period of the experimental infection were 5 and 4 days respectively. Maximum oocyst output [2 x 10(5) oocyst per gram (OPG) was observed on the 7th day post inoculation (PI). The mean total oocyst output was 2.5 x 10(7). Diarrhoea started on the second day of oocyst shedding.
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