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Vnímavost vybraných hostitelů k infekci \kur{Cryptosporidium avium}

By Zuzana REIFOVÁ

Abstract

Experimental infections with Cryptosporidium avium were carried in three different species of birds (chicken, duck and pheasant) divided into three age categories (1-day-old, 21-day-old and adult). The birds were infected peroraly using intragastric gavage with a dose of 380 thousand of oocysts in 1 ml. Faecal samples were collected daily for 30 days for a microscopic and molecular examination. While all age categories of pheasant (Phasianus colchicus) were not susceptible to C. avium infection, all age groups of domestic fowl (Gallus gallus f. domestica) and white ducks (Anas platyrhynchos f. domestica) were susceptible. Prepatent period in domestic fowl ranged from 9 to 11 days depending on the age category, in white ducks from 4 to 6 days. Patent period for both susceptible host species was longer than 30 days. Based on the results of experimental infections domestic fowl and white duck are proposed as a suitable model hosts for Cryptosporidium avium

Topics: experimental infection; experimentální infekce; věková specifita; age-related susceptibility; vnímavost; Cryptosporidium avium
Year: 2016
OAI identifier: oai:invenio.nusl.cz:253431
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