Pigeons are closely related to human life and are both a source of food and object for hobbies and sports. Parasitic diseases of birds are the main reason for their growth retardation, reduced productivity and viability. The article presents the results of studying the prevalence of trichomonosis, cestodes and nematodes among the population of wild and domestic pigeons in the south of Ukraine. According to the results of the conducted researches it is established that in the south of Ukraine endoparasitoses of domestic and wild pigeons are quite widespread, and all species of this bird are carriers of Trichomonas gallinae. At the same time, the highest rate of Trichomonas infection was recorded in Columba palambus and C. livia domestica, and the overall infestation of males is higher by 4.4% compared to females. It was determined that domestic pigeons C. livia domestica were infested with trichomonosis (27.5%) and nematodes (Ascaridia columbae, 57.1%), C. palambus – trichomonosis (32.1%) and cestodes (Raillietina spp., 82.4%), Streptopelia turtur – cestodes (Raillietina spp., 12.5%) and S. decaocto – cestodes (Raillietina spp., 71.4%) and nematodes (Heterakis gallinarum, A. columbae – 33.3% and 44.4% respectively). The overall rate of infestation of pigeons with cestodes was 28.4% and the incidence in males was higher by 3.9% compared to females. It was found that the most common species among pigeon cestodes is Raillietina spp. In addition, 22.9% of pigeons are carriers of nematodes (H. gallinarum, A. columbae and Capillaria spp.). Continuous monitoring of pigeon parasites is necessary because they, in most cases, come into contact with other species of poultry and are a source of general invasion. In terms of further research, it would be promising to study the prevalence of helminthic infestation among wild migratory birds.
Dirofilariasis of animals and humans is a disease caused by nematodes of the genus Dirofilaria (Railliet et Henry, 1911). The role of wild predators, particularly the red fox (Vulpes vulpes) (Linnaeus, 1758) in the distribution of pathogen of the genus Dirofilaria in the world remains unclear. We studied the occurrence of Dirofilaria immitis (Leidy, 1856) in a population of the red fox. Twenty-seven foxes were examined during the winter hunting season of 2019–2020 in Dergachi district, Kharkiv region of Ukraine. All 27 examined foxes were older than 1.5–2 years old, 5 of them (18.5 %) were 4–5 years old. Dirofilaria immitis was found in 22.2 % of foxes. The intensity of infection ranged from 2 to 4 specimens of nematodes per host. In four foxes (66.7 % of infected hosts), the same number of male and female nematodes was detected, while two foxes (33.3 %) had each 1 male and 2 females of D. immitis. The length of D. immitis males (7 specimens) was 13.96 ± 0.29 cm and the length of females (9 specimens) was 19.58 ± 0.55 cm. Prevalence of infection of foxes with D. immitis presumably depends on their habitat and the presence of mosquitos (vectors of the nematode) in these areas.
The article presents the main stages of life, scientific and pedagogical activities on the way to the formation of the Kharkiv School of Veterinary Hematologists and Parasitologists, the development of the Kharkiv Zooveterinary Institute, and the main directions of scientific activity
The industrial poultry management system in enclosed spaces (in cages or on the floor), subject to veterinary and sanitary regulations, largely solves the problem of hens invasions. However, poultry farming on smallholder farms and private farms, with traditional day-care facilities, is often accompanied by a variety of invasive pathologies, including biohelminthoses such as rayetinosis. Object of research: chickens of different ages and breeds of private farms of the southeastern region of Ukraine. Purpose of the work: to study the epizootic situation on intestinal cеstodoses of hens in the conditions of private farms of the East and South of Ukraine. Epizootic studies of the situation on cеstodoses were conducted in private farms of Kharkіv, Sumy, Donetsk, Dnіpropetrovsk and Kherson regions. Generally accepted epizootological, clinical and parasitological and special coproscopic methods of research were conducted. The material for the lifelong study was selected by random sampling during defecation and from the floor. Feces (litter) was examined by helminthoovoscopy (by Fulleborn and Kotelnikov-Khrenov methods) to identify eggs of pathogens and by helminthoscopy to find the parts of the cеstodes in their natural deposition and after diagnostic deworming. Postmortem helminthic autopsy of hens intestines was performed according to K.I. Skryabin. As a result of researches it is established that rayetinosis is a widespread cestodosis invasion among hens of private farms of the southeast region of Ukraine. Depending on the territorial location and natural-climatic zone, rayetinosis is more often spread in southern regions. The intensity of invasion of hens in Dnepropetrovsk region was 16,3-18,9 %, in Kherson region-11,6-13,0 %. The lowest level of hens invasions by the cestodes of the genus Raillietina was registered in the eastern and northern regions of Ukraine
The article presents the results of experimental studies of the sorption and disinfecting properties of the drying agent for layer dryer "Mikadez" TU U 08. 1 -36613759 -002: 2013 in vitro for standard test -cultures of microorganisms (Echerichia coli, Staphilococcus aureus).It is known that the increased moisture content of the litter leads to disruption of biothermal processes and the development of pathogenic, anaerobic and putrefactive microflora in it, contributes to contamination with various pathogenic microorganisms, affects the health and productivity of poultry, the yield and quality of products.The experiments were carried out in the Scientific Laboratory of Molecular Genetic Research Methods. P.I. Verbitsky Department of Epizootology and Veterinary Management of the Kharkov State Zooveterinary Academy using generally accepted microbiological methods. The sensitivity of microorganisms of the standard test -cultures of Echerichia coli, Staphilococcus aureus to the drug "Mikadez" was determined by the disco -diffusion method.According to the research results, it was found that the dryer "Mikadez", which contains mineral and plant adsorbents has sorption properties and negatively affects the development of test cultures of microorganisms. The effect of the drug on microbial cells is due to the effect of active substances (nanodispersed amorphous silicon dioxide and other minerals of the complex) on glucoprotein structures and phospholipids of membranes, surface receptors of microorganisms, which leads to a detrimental effect on the development and viability of microorganisms of standard test cultures Echerichia coli and Staphilococcus aureus, the drug also has a pronounced sorption effect (bacagglutination) on G + and G-microorganisms, in which its antiseptic and disinfecting properties are manifested. The zone of growth inhibition of standard test -cultures by the disc -diffusion method was 17-20 mm.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.