[Primary research on gastro-intestinal cryptosporidium incidence rate in lambs and calves in amol city, Iran]

ABSTRACT

Cryptosporidium is an ubiqutous enteric protozoan parasite that infects a wide range of vertebrate hosts. In humans and many other mammals, cryptosporidium is recognized as a significant pathogen primarily as a cause of acute, severe diarrheal illness. At this investigation animal samples [stool] were collected from 708 heads of lambs [in the beginning of the birth to three months] and 713 heads of calves [in the beginning of the birth to six months] in spring, summer, autumn and winter seasons at amol city in 1374. the samples were examinated after staining using modified zihil - nelson technique. Results showed, 29 samples of lambs [4.09%] and 28 samples of calves [3.92%] were positive, also in winter season infestation rate was higher than the other seasons [4.65%]. whereas infestation rate in animals without clinical signs is high, so this subject is a important problems for public health