Distribution, bioecological peculiarities of staphylinids (Coleoptera, Staphylinidae) in livestock biocenoses of forest-steppe and steppe Ukraine

Abstract

As a result of research in the territory of livestock farms, 103 species of predatory Coleoptera were found, including Staphylinidae accounting for 51.4%, Histeridae – 27.3%, Carabidae – 21.3%. A total of 39 species of the Staphylinidae family were identified, belonging to 5 subfamilies: Oxytelinae, Steninae, Staphylininae, Tachyporinae, Aleocharinae. Species composition of staphylinids varied in relation to the types of animal rearing premises. In cowsheds and calf pens species diversity was higher (35 species). To study the peculiarities of feeding in laboratory conditions, we monitored 9 species of Staphylinidae: Philonthus addendus Sharp, Ph. cruentatus (Gmel.), Ph. rectangulus Sharp, Ph. varians (Payk.), Ph. spinipes Sharp, Ph. nitidus F., Creophilus maxillosus (L.), Ontholestes murinus (L.), Oxytelus sp. Feeding specialization of imagoes and larvae of different ages was studied. We determined that the mass of food consumed per day is higher than the weight of the beetles. Large species of staphylinids prefer feeding on average-aged larvae of flies and can eat puparia. Peculiarities of the development of coprophilous staphylinids were studied on the example of Ph. spinipes Sharp. During 24 h a female laid 1–3 eggs (in +28°С). Duration of the egg phase depends on the temperature regime (in +20 °С – 4–5, +28 °С – 3–4 days). Cessation of egg laying was observed with decrease in the temperature to +14 °С. The development takes part in three larval stages. Duration of the larva phase at +28 °С was 8–10 days, at +20 °С – 13–14 days. The first moulting was observed on the 2–3th days (in +28 °С) after the larvae emerged from the eggs. At +28 °С the pupa phase lasted 8–10 days. Decrease in temperature prolonged the rate of the development. At +24 °С it practically did not change (9–10 days), at +18 °С – increased to 13–15 days.

Revealing changes in the technical parameters of the teat cup liners of milking machines during testing and production conditions

“…The research results are consistent with the studies carried out earlier [12,15,17,21], supplement them in the format of obtaining the latest information for the use of innovative technical solutions (Fig. 1).…”

Effectiveness of a modern antiparasitic agent for deworming in domestic animals

“…However, the use of disinfectants in specific conditions requires their additional approbation and determination of useful modes of exposure (Paliy et al, 2016;2018a;Shkromada et al, 2019a). A study and practical application of scientific approaches to use animal parasites' natural enemies is a separate scientific area (Paliy et al, 2018d;2020a). Domestic animals' owners should be appropriately informed about zoonotic risks, and veterinarians should organize regular screening and treatment of domestic animals.…”

Study of the toxicity and effectiveness of an antiparasitic agent based on tinidazole and fenbendazole

“…The large-scale spread of pathogens of parasitic diseases depends on a number of factors, among which the main ones are environmental, biological and anthropogenic (Kołodziej-Sobocińska, 2019). The role of insects in the spread of helminth eggs has been proven (Paliy et al, 2018d), but some of them are predators of animal ectoparasites (Paliy et al, 2020a). Exogenous forms of helminths are found both at animal husbandry facilities (Majeed et al, 2015;Paliy et al, 2018c) and at many objects of social-epidemic control (Stojanov et al, 2018;Paliy et al, 2019).…”