Rumen contents obtained from 28 domesticated cattle (Bos taurus L.) slaughtered at abatoirs near Izmir, Turkey were surveyed for ciliate protozoa. Protozoa are known to make an appreciable contribution to ruminal fiber digestion in many different geographical areas; however, little if any information is available on their occurrence in Turkish cattle. As a result of our survey, 13 genera including 52 species were identified. Nine of the species were further divided into 36 forma. The average ciliate density in our cattle (52.44 × 104/ml) was higher than that of Turkish domestic sheep and other domestic cattle reported previously from different geographical areas. Entodinium basoglui, Entodinium williamsi f. williamsi, E. williamsi f. turcicum, E. dalli f. rudidorsospinatum, Entodinium imai, Entodinium oektemae, Eudiplodinium dehorityi, Epidinium graini, Ophryoscolex purkynjei f. bifidobicinctus, and Ophryoscolex purkynjei f. bifidoquadricinctus have previously been reported from Turkey and appear to be endemic. All of the remaining species represent a new host record for domestic Turkish cattle. This study also reports for the second time the presence of Entodinium constrictum in herbivorous mammals, and is the first record of its occurrence in domesticated cattle.
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Vol. 50 • No. 2