Ananthasubramanian M, Ananthan S
Department of Microbiology Dr. ALM Post Graduate Institute of Basic Medical Sciences University of Madras, Taramani.
Indian J Pathol Microbiol. 1997 Oct;40(4):469-72.
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.
在实验感染的泽西-信德杂交犊牛中研究了微小隐孢子虫卵囊的排出情况。将3头7日龄的公牛犊单独饲养，经口感染10⁸个微小隐孢子虫卵囊。实验感染的潜伏期和发病期分别为5天和4天。接种后第7天观察到最大卵囊排出量[每克粪便2×10⁵个卵囊（OPG）]。平均总卵囊排出量为2.5×10⁷个。腹泻在卵囊排出的第二天开始。
