Особенности распространения трематод семейства Prosthogonimidae (Nicoll, 1924) у птиц на северо-востоке Казахстана

Abstract

The purpose of the research is study of the distribution of trematodes of the family Prosthogonimidae (Nicoll, 1924) among various species of game birds in north-eastern Kazakhstan. Materials and methods . Helminths have been collected using the K. I. Skryabin method of complete helminthological dissection (1928). The manufacture of total preparations from adult trematodes was carried out according to generally accepted methods. The species identity of the trematodes was determined according to K. M. Ryzhikov Identification Guide (1967). The materials obtained were processed statistically according to recommendations given by G. F. Lakin (1990). Results and discussion . 88 birds (67.2%) from 131 study birds were infected with trematodes of the Prosthogonimidae Luhe family, 1909. They were found in 60% Gruiformes and 74.5% Anseriformes of 10 types. Prosthogonimidae were not found in Ciconiiformes and Podicipediformes. The prosthogonimidae fauna in north-eastern Kazakhstan is represented by two types, namely Schistogonimus rarus (Braun, 1901) and Prosthogonimus cuneatus (Rud., 1809). From two types of trematodes that were identified in the lakes of the north-eastern part of the Republic, S. rarus is most frequently found. The higher infection rates were registered in garganey teals, coots, gadwalls, common pochards, mallard ducks, pintails and shovelers. The wide geographical range of the above trematodes in north-eastern Kazakhstan may indicate prosthogonimidae pestholes in the region. A climate factor can influence significantly on wild bird infection with S. rarus.