Helminths of saiga antelope (Saiga tatarica L.) in the “Askania Nova” Biosphere Reserve, Ukraine

Abstract

SummaryAnalysis of the species composition and community structure of helminths in saiga antelope (Saiga tatarica) was performed using multi-year data collected from the "Askania Nova" Biosphere Reserve, Ukraine. During this period, 31 saiga antelopes of different ages (7 calves, 24 adults) were examined; totally, more then 63,900 helminth specimens were collected and identifi ed by morphological criteria. Levels of saiga infection by nematodes were from 39 to 671 EPG (207±132 SD); seasonal fl uctuations in saiga infections were insignifi cant (Mann-Whitney test; p>0.05). Nineteen helminth species were found in saigas in the "Askania Nova": 3 species of Cestoda (Avitellina centripunctata, Moniezia expansa and Taenia colubriformis, T. probolorus, Ostertagia ostertagi, O. circumcincta, O. trifurcata, Nematodirus spp., Trichurus ovis). From 2 to 13 species per one host were observed. Nematodes dominated within the parasite community and composed more then 99 % of the total helminths found. Signifi cant differences were found in helminth diversity between young and adult saigas (p<0.05). Prevalencefrequency distribution revealed multimodal structure of helminth community with dominant, subdominant, background and rare species. The highest number of helminthes (14 species and 50 % of the total amount) inhabited the small intestine; 11 species (45 %) were found in the abomasum and 9 species (5 %) in the large intestine. The Bray-Curtis cluster analysis revealed signifi cant differences within the helminth communities in saigas from the "Askania Nova" Biosphere Reserve and saigas from Kazakhstan, Dagestan and Kalmykia.

Helminths of Exotic Even-Toed Ungulates (Artiodactyla) in the Askania-Nova Biosphere Reserve, Ukraine

“…In this paper, we analyzed the diversity of parasite species collected from exotic ungulates in the Askania-Nova Reserve during about four decades. Even though some of these data were partially analyzed and published earlier (Treus & Zvegintsova, 1979; Zvegintsova & Treus, 2007;Zvegintsova, 2008Zvegintsova, , 2009Zvegintsova, , 2012Zvegintsova, , 2013Zvegintsova, , 2014Zvegintsova et al, 2015), a complete list of the parasites is published for the fi rst time in the present paper.…”

“…Aft er necropsy of the hosts, all helminths were manually collected from diff erent organs and from all parts of the digestive system, washed with the saline or tap water and fi xed with the Barbagallo solution (4 % formalin solution in saline), or with 70 % ethanol (Ivashkin et al, 1971). Totally, 402,722 specimens of helminths were collected and identifi ed according to morphological criteria using the light microscopy (Boev et al, 1963; Zvegintsova et al (2015). Govorka et al, 1988;Ivashkin et al, 1989).…”

“…Until now, the parasites of wild and domestic equids, strongylid nematodes in particular, have been well studied in the Askania-Nova Reserve (Dvojnos & Kharchenko, 1994;Kuzmina et al, 2007Kuzmina et al, , 2009Kuzmina et al, , 2013. As for the species of Bovidae, the parasite community of saiga antelopes has been thoroughly examined (Zvegintsova et al, 2015). Parasites of other ungulate species have also been studied and the results were published partially (Zvegintsova & Treus, 2007;Zvegintsova, 2008Zvegintsova, , 2009Zvegintsova, , 2012Zvegintsova, -2015.…”

Long-term effects of acute cadmium exposure on testis immune privilege

“…Capillaria bovis) -ruminant capillariasis agent, found in the USA, Indonesia, Poland, Turkey, India and Ukraine. According to data, invasion extensity varies from 3.5 to 27.0% (Worley et al, 1980;Umur, 1996;Beriajaya & Copeman, 1998;Kowal et al, 2012;Zvegintsova et al, 2015).…”

Gastrointestinal Nematodes in Moufflons and Domestic Sheep in Protected Areas of Uzbekistan

“…Moreover, the family Trichostrongylidae includes 22-24 мая 2024 года, Москва animals studied; G. pulchrum and P. skrjabini in domestic sheep, Ustyurt mountain sheep and Severtsev's sheep; Nematodirus abnormalis and N. helvetianis in domestic sheep and Severtsev's sheep; and N. oiratianus in domestic sheep and Ustyurt mountain sheep. Keywords: nematodes, Ovis, digestive tractВведение.В исследованиях, проведенных Н. С. Звегинцовой[2], зараженность муфлонов гельминтами составила 87%, из них 11 видов нематод были зарегистрированы в пищеварительном тракте. Было идентифицировано 9 видов нематод подсемейства Ostertagiinae у домашних и диких овец, из которых у домашней овцы -7 видов и муфлона -6 видов нематод[4].…”