Кафедра інфекційної патології, гігієни, санітарії та біобезпеки

Постійне посилання на фонд

https://dspace.pdau.edu.ua/handle/123456789/5082

Переглянути

Перегляд Кафедра інфекційної патології, гігієни, санітарії та біобезпеки за Автор "Avramenko, N. О."

Зараз показуємо 1 - 2 з 2
  • Ескіз
    Публікація
    Hoof Pathologies in Cattle
    (2026) Kulynych, S. M.; Klymas, А.; Shabalin, O.; Zvenihorodska, T.; Petrenko, M. O.; Kolomak, I. O.; Tul, O. I.; Slynko, V. H.; Avramenko, N. О.; Panasova, T. G.; Omelchenko, G. O.; Кулинич, Сергій Миколайович; Петренко, Максим Олександрович; Коломак, Ігор Олегович; Туль, Олександра Іванівна; Слинько, Віктор Григорович; Авраменко, Наталія Олексіївна; Панасова, Тетяна Георгіївна; Омельченко, Ганна Олексіївна
    Hoof pathologies are among the most widespread orthopedic disorders in dairy cattle and are a major contributor to reduced animal welfare and productivity. The present study investigated the prevalence, clinical presentation, and treatment outcomes of the most common hoof lesions – digital dermatitis (Mortellaro’s disease), Rusterholz ulcers, purulent pododermatitis, and interdigital dermatitis – across multiple dairy farms in Ukraine. Clinical examinations and therapeutic procedures were performed on more than 9,800 cows from 7 farms during 2022–2023. Diagnosis was conducted during scheduled functional hoof trimming using an orthopedic crush and was confirmed based on lesion morphology, presence of exudate, odor, and pain response. A locally formulated topical powder composed of copper sulfate, zinc oxide, iodoform, and potassium permanganate was applied to purulent –necrotic lesions and compared with a control treatment using a commercial chemi-spray. Therapeutic efficacy was evaluated by lesion healing dynamics and locomotion scores (AHDB system) on days 3, 14, 21, and 45. Digital dermatitis was identified as the predominant lesion, accounting for 50–66% of all diagnosed hoof disorders. The locally formulated powder showed markedly superior therapeutic performance relative to the chemi-spray, accelerating tissue repair and improving locomotion, with full recovery achieved in 86.7–100% of treated cows, depending on farm and lesion type. These findings confirm the persistently high prevalence of hoof diseases in dairy herds and demonstrate the clinical advantage of an affordable, locally prepared treatment formulation. Routine functional trimming, early lesion detection, and evidence-based local therapy remain critical components of effective lameness management in modern dairy production systems
  • Ескіз
    Публікація
    Inhibitory properties of disinfectants on the sporogony of Eimeria tenella (Protista, Eimeriidae)
    (2025) Yevstafieva, V. O.; Євстаф’єва, Валентина Олександрівна; Melnychuk, V. V.; Мельничук, Віталій Васильович; Hodyna, V.; Mykhailiutenko, S. M.; Михайлютенко, Світлана Миколаївна; Kruchynenko, O. V.; Кручиненко, Олег Вікторович; Omelchenko, A.; Avramenko, N. О.; Авраменко, Наталія Олексіївна; Mazannyi, O.
    he protozoa of kingdom Protista are widespread pathogens of gastrointestinal protozoal diseases in chickens and cause significant economic losses to farms. Prevention includes a set of measures to treat poultry with effective drugs, and disinfect the environmental objects using modern, safe and beneficial means. For this purpose, it is recommended to use disinfectants that have been tested for their disinfestation effect. The aim of the research was to investigate the disinfestation effect of chemicals on the process of sporulation of Eimeria tenella oocysts isolated from chickens in laboratory conditions. It was found that the disinfectants "Virosan" (active substances – alkyldimethylbenzylammonium chloride and glutaraldehyde) and "Yoderin" (contains iodophores) had disinvasive properties, but their indicators of inhibitory action against sporogony of E. tenella oocysts were not the same. The most effective was the agent alkyldimethylbenzylammonium chloride and glutaraldehyde mixture, with a 100% inhibitory effect when used at a 0.5% concentration and exposure of 150 minutes. At lower exposures and concentrations, its indicators of inhibitory action ranged within the following limits: at 0.1% concentration to 57.0%, at 0.25% concentration to 84.5%. The inhibitory effect of the iodophor-based disinfectant was lower and varied depending on the exposure (from 30 to 150 min) within the following limits: at 0.5% concentration to 35.7%, at 1.0% concentration to 68.2%, at 2.0% concentration to 93.1%. In addition to stopping the development of Eimeria oocysts, the disinfectants induced changes in their morphological and metric indicators. Metric indicators of oocysts under the action of disinfectants were characterized by lower values of their width (by 4.8–8.7%), and under the action of the iodophor-based agent, by a decrease in the ratio of length / width of oocysts (by 11.0%). The obtained results of the inhibitory action of the disinfectants present prove the possibility of using these agents to combat and prevent eimeriasis in chickens