[Heterochromatin and euchromatin regions in the chromosomes of various representatives of the subfamily Bovinae].

Heterochromatin distribution was studied in three species of subfamily Bovinae: bison (Bison bison), European bison (Bison bonasus), and gayal (Bos frontalis). In all of the studied species, C- and CMA3-banding and in situ hybridization with satellite DNAII (satDNAII) revealed the conservative distribution of heterochromatic regions in autosomes; sex chromosomes did not contain the classical constitutive heterochromatin. The Y chromosome was the most variable element of the karyotypes of both bison species and the gayal.

[Helminths in an Askaniia-Nova herd of eland and experiences in eradicating Strongylata infestation].

Parasitological complex studies of the available eland stock (60 individuals) were first carried out. As a result 100 % infection rate of the herd and the age dynamics of strongylatoses were revealed. The autopsy of animals have shown that five species of six species of nematodes and one species of cestodes are common parasites of ruminants of the Ukraine steppe zone and two species are specific parasites of eland.

[Wohlfahrtiasis in wild ungulates in the Askaniia-Nova Zoo].

The paper presents data on the sick rate with volfartiosis in different species of wild ruminents. The animals were maintained in spacious enclosures (up to 1550 hectare). This disease was recorded in 24 species of animals, african eland (33.