NIV-NS Repository (Naučni institut za veterinarstvo "Novi Sad")
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Mikroplastika u životnoj sredini
No full textIstraživanje je sprovedeno uz podršku Fonda za nauku Republike Srbije "Zdravstvena zaštita i oèuvanje biodiverziteta domaæih magaraca u Specijalnom rezervatu prirode "Zasavica"-PROTECTDonkey" (broj 3535)
Patomorfološke karakteristike respiratornih infekcija kod svinja iz različitih proizvodnih kategorija i na liniji klanja
No full textIn the complex conditions of intensive pig breeding, respiratory diseases remain a signifi cant health and economic challenge, despite substantial progress in diagnostics and control measures. This study analyzes the pathoanatomical and histopathological changes in the respiratory organs of dead pigs from different production categories, as well as in clinically healthy fattening pigs inspected on the slaughter line. The research was conducted on a farrow-to-fi nish pig farm in southern Serbia without immunoprophylaxis against respiratory infections. A total of 182 animals were examined: 50 suckling piglets, 50 weaned pigs, 30 pre-fattening pigs, and 52 fattening pigs. Macroscopic and microscopic analysis of lungs, trachea, tonsils, and tracheobronchial lymph nodes revealed interstitial pneumonia predominated in young pigs categories (suckling and weaned), while older pigs (pre-fattening) showed purulent, fi brinous, and mixed broncho-interstitial pneumonia, often with pleural adhesions. Among fattening pigs, 82.7per cent showed no macroscopic lung changes. In cases of interstitial pneumonia, histology revealed type II pneumocyte hyperplasia, fi brosis, and infl ammatory cell accumulation in the interstitium. Purulent bronchopneumonia exhibited neutrophilic granulocytes and epithelial desquamation, while fi brinous bronchopneumonia showed extensive fi brin deposits. Catarrhal infl ammation of the trachea was most common in weaned pigs (38.0per cent), while tonsillitis occurred most frequently in suckling piglets (24.0per cent) and weaned pigs (28.0per cent). Reactive lymphadenitis in the tracheobronchial lymph nodes was highest in pre-fattening pigs (63.3per cent), suckling piglets (44.0per cent) and weaned pigs (40.0per cent). Although pathomorphological fi ndings alone cannot confi rm an etiological diagnosis, they guide further diagnostic investigations and emphasize the need for improved control, prevention, and diagnostic programs for respiratory infections in pigs.The study was supported by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia (Contract number 451-03-136/2025- 03/200143)
Seasonal Variation in Essential Minerals, Trace Elements, and Potentially Toxic Elements in Donkey Milk from Banat and Balkan Breeds in the Zasavica Nature Reserve
No full textDonkey milk is highly valued for its unique nutritional characteristics and hypoallergenic properties. However, limited data exist on its mineral composition and potential contaminants. This study aimed to comprehensively analyze the concentration of selected essential and toxic elements from Banat and Balkan donkey breeds reared under extensive organic conditions (free-range) across different seasons. The focus was on determining the concentrations of essential minerals and trace elements (Ca, P, Na, K, Mg, Zn, Cu, Se), and potentially toxic elements (As, Pb, Hg, Cd). Samples were collected monthly over one year, with nine pooled samples per season. Mineral elements were determined using a validated ICP-MS method. The mineral content ranges (mg/kg) were Ca (588.9–744.4), P (355.6–533.3), Mg (71.1–84.4), K (444.4–711.1), Na (355.6–444.4), with trace elements (mg/kg) including Zn (2.06–2.21), Cu (0.31–0.68), and Se (0.02–0.05). Potentially toxic elements were within safe limits, with the exception that Pb levels exceeded permissible limits in two samples. Statistically significant seasonal variations were observed for Ca, P, K, As, and Cu. Donkey milk from both breeds was rich in minerals and low in contaminants. This research highlights the need for further studies on the nutritional and safety aspects of donkey milk.This research was supported by the Science Fund of the Republic of Serbia, grant no. 3535, Project Health Protection and Biodiversity Conservation of Domestic Donkeys in the Special Nature Reserve “Zasavica”—PROTECTDonkey, and by the Ministry of Science, Technological Development and Innovation of Republic of Serbia by the Contract of Implementation and Funding of Research Work of NIV-NS in 2025, Contract No: 451-03-136/2025-03/200031
Harnessing Manuka Honey: A Natural Remedy for Accelerated Burn Wound Healing in a Porcine Model
No full text: Backgrounds: Burn injuries present significant medical challenges due to their
complexity in healing and potential for severe scarring. This study evaluates the efficacy of
Manuka honey in accelerating burn wound healing compared to conventional antibiotic
ointments. Methods: Using a porcine model resembling human skin, nine Landrace breed
female pigs with standardized deep dermal burns were treated with either Manuka honey
in alginate or a combination of antibiotic ointments. Wound healing was assessed through
macroscopic evaluation, a histopathological analysis, and immunohistochemical staining
over a 60-day period. Results: Our findings indicate that the Manuka honey treatment
was associated with significantly increased collagen density in the treated wounds compared to the control group (p < 0.05). The immunohistochemical analysis revealed lower
macrophage activity (Iba1 staining) and a reduction in Ki67 expression on days 10 and 17
in the Manuka honey group, suggesting a more rapid transition toward tissue remodeling.
The quantitative analysis showed a trend toward delayed epithelialization and increased
inflammation in the control group, while wounds treated with Manuka honey exhibited
faster reepithelialization and improved epidermal regeneration. However, additional studies are required to further assess collagen fiber organization and overall dermal architecture.
Conclusions: These findings support the potential of Manuka honey as a beneficial treatment for burn wound healing, with evidence of enhanced reepithelialization and collagen
deposition. Further research, including clinical trials, is necessary to fully elucidate its role
in clinical practice and optimize treatment protocols
Relationship between learning outcomes, competencies and formative and summative assessment of student learning in farm animals biosecurity courses
No full textThis paper was done as part of: BETTER - COST ACTION CA20103 - Biosecurity Enhanced Through Training Evaluation
and Raising Awareness
Comparative presentation of the occurrence of infectious laryngotracheitis in vaccinated and unvaccinated laying hen flocks
No full textThis work was funded by Ministry of Science, Technological Development and Innovation of Republic of Serbia by the Contract of implementation and funding of research work of NIV-NS in 2025, Contract No: 451-03-136/2025-03/20003
Epidemiological challenges in the control of African swine fever in extensive production systems in Srem and South Bačka districts in 2024
No full textThis work was funded by Ministry of Science, Technological Development and
Innovation of Republic of Serbia by the Contract of implementation and funding of research work of NIV-NS
in 2025, Contract No: 451-03-136/2025-03/200031. This study was also based upon joint research work from
scientific and technological cooperation between the Republic of Serbia and the Republic of Slovenia, bilateral
project number: 337-00-110/2023-05/48, supported by the Ministry of Science, Technological Development
and Innovation of the Republic of Serbia and Ministry of Higher Education, Science and Innovation of
Republic of Sloveni
Case report of pathomorphological changes in domestic poultry under extensive breeding conditions affected by mycobacteriosis
No full textMetagenomic analysis of viruses in mosquito populations in the territory of Vojvodina and Belgrade, Serbia
No full textThis project has received resources from the Infravec consortium as part of the ISIDORe project (funding from the European Union’s Horizon Europe Research & Innovation program, grant agreement N° 101046133). The study was supported by the Ministry of Science, Technological Development and Innovation of the Republic of Serbia (Contract numbers 451-03-136/2025-03/20031, 451-03-136/2025-03/200030, 451-03-137/2025-03/200117 and 451-03-136/2025-03/200143
Antimikrobna rezistencija sojeva enterococcus spp. Izolovanih iz namirnica animalnog porekla
No full textThe current work aims to test the antimicrobial resistance of 92 Enterococcus spp.
isolates from dairy products, eggs and meat in the Autonomous Province of Vojvodina, Serbia. As
confirmed by PCR or MALDI TOF, E. faecalis was the most frequently encountered species
(51.08%), followed by E. faecium (39.13%), E. hirae (6.52%), E. thailandicus (2.17%) and E.
durans (1.08%). Generally, the most frequent resistance phenotype in all isolates was to tetracycline
(34.78%), erythromycin (27.17%), doxycycline (21.73%) and streptomycin (13.04%). The
phenotypic resistance to antimicrobials was less prevalent in enterococci isolates from dairy
products than in meat isolates. Out of the 92 enterococci isolates, 16 (17.39%) were multidrugresistant (MDR), primarily those from poultry (38.09%) and pork meat (21.05%). Resistance to
fluoroquinolones was confirmed only in MDR enterococci isolates from poultry meat (28.57%).
Resistance to vancomycin, ampicillin, linezolid, teicoplanin and tigecycline was not detected.This study was financially sup-ported by the Ministry of Science, Techno-logical Development and Innovation of the Republic of Serbia through Contract No: 451-03-66/2024-03/200031 and 451-03-66/2024-03/200143