Investigation of possible aetiological/triggering factors in porcine ear necrosis syndrome at a farrow-to-feeder pig system
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2021
Аутори
Kureljušić, Branislav![](/themes/Miragereponivs/images/orcid.png)
Savić, Božidar
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Milićević, Vesna
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Jezdimirović, Nemanja
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Radanović, Oliver
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Žutić, Jadranka
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Weissenbacher-Lang, Christiane
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Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
At a commercial farrow-to-feeder pig system with 2,100 sows in Serbia, lesions resembling porcine ear necrosis syndrome were observed in 80% of the weaned pigs at 45-50 days of age. Pathomorphological examinations were carried out on 10 pigs that had been found dead. The gross lesions ranged from mild, superficial dermatitis to severe, deep inflammation with exudation, ulceration and necrosis. Histopathological examination revealed erosive and ulcerative dermatitis of the pinna with neutrophilic and lymphocytic infiltration and bacterial colonies in the crusts. Staphylococcus aureus (MRSA strain), Staphylococcus hyicus and Streptococcus group C were cultivated from eight, S. hyicus from two ear tissue scraping samples. All 10 samples were positive for treponemes and phylogenetic analysis of two polymerase chain reaction products confirmed the relationship to Treponema (T.) medium/vincentii and Treponema pedis. Treponemes were also detected in seven oral swabs that were analysed to obta...in evidence of the transmission of this bacterium by ear biting. The contribution of non-infectious factors to this misbehaviour could not be ruled out as the crude protein concentration of the feed was inappropriate and the climate of the pig house was suboptimal. The concentrations of selected mycotoxins in the feed were not elevated. However, the contribution of both infectious and non-infectious factors to the onset of disease was most probable.
Кључне речи:
treponemes / porcine ear necrosis syndrome / mycotoxins / histopathology / bacteriologyИзвор:
Acta Veterinaria Hungarica, 2021, 69, 2, 161-168Издавач:
- Akademiai Kiado Zrt, Budapest
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200030 (Научни институт за ветеринарство Србије, Београд) (RS-MESTD-inst-2020-200030)
DOI: 10.1556/004.2021.00018
ISSN: 0236-6290
PubMed: 34106876
WoS: 000681019800007
Scopus: 2-s2.0-85113965180
Институција/група
Naučni institut za veterinarstvo SrbijeTY - JOUR AU - Kureljušić, Branislav AU - Savić, Božidar AU - Milićević, Vesna AU - Jezdimirović, Nemanja AU - Radanović, Oliver AU - Žutić, Jadranka AU - Weissenbacher-Lang, Christiane PY - 2021 UR - https://reponivs.nivs.rs/handle/123456789/456 AB - At a commercial farrow-to-feeder pig system with 2,100 sows in Serbia, lesions resembling porcine ear necrosis syndrome were observed in 80% of the weaned pigs at 45-50 days of age. Pathomorphological examinations were carried out on 10 pigs that had been found dead. The gross lesions ranged from mild, superficial dermatitis to severe, deep inflammation with exudation, ulceration and necrosis. Histopathological examination revealed erosive and ulcerative dermatitis of the pinna with neutrophilic and lymphocytic infiltration and bacterial colonies in the crusts. Staphylococcus aureus (MRSA strain), Staphylococcus hyicus and Streptococcus group C were cultivated from eight, S. hyicus from two ear tissue scraping samples. All 10 samples were positive for treponemes and phylogenetic analysis of two polymerase chain reaction products confirmed the relationship to Treponema (T.) medium/vincentii and Treponema pedis. Treponemes were also detected in seven oral swabs that were analysed to obtain evidence of the transmission of this bacterium by ear biting. The contribution of non-infectious factors to this misbehaviour could not be ruled out as the crude protein concentration of the feed was inappropriate and the climate of the pig house was suboptimal. The concentrations of selected mycotoxins in the feed were not elevated. However, the contribution of both infectious and non-infectious factors to the onset of disease was most probable. PB - Akademiai Kiado Zrt, Budapest T2 - Acta Veterinaria Hungarica T1 - Investigation of possible aetiological/triggering factors in porcine ear necrosis syndrome at a farrow-to-feeder pig system EP - 168 IS - 2 SP - 161 VL - 69 DO - 10.1556/004.2021.00018 UR - conv_568 ER -
@article{ author = "Kureljušić, Branislav and Savić, Božidar and Milićević, Vesna and Jezdimirović, Nemanja and Radanović, Oliver and Žutić, Jadranka and Weissenbacher-Lang, Christiane", year = "2021", abstract = "At a commercial farrow-to-feeder pig system with 2,100 sows in Serbia, lesions resembling porcine ear necrosis syndrome were observed in 80% of the weaned pigs at 45-50 days of age. Pathomorphological examinations were carried out on 10 pigs that had been found dead. The gross lesions ranged from mild, superficial dermatitis to severe, deep inflammation with exudation, ulceration and necrosis. Histopathological examination revealed erosive and ulcerative dermatitis of the pinna with neutrophilic and lymphocytic infiltration and bacterial colonies in the crusts. Staphylococcus aureus (MRSA strain), Staphylococcus hyicus and Streptococcus group C were cultivated from eight, S. hyicus from two ear tissue scraping samples. All 10 samples were positive for treponemes and phylogenetic analysis of two polymerase chain reaction products confirmed the relationship to Treponema (T.) medium/vincentii and Treponema pedis. Treponemes were also detected in seven oral swabs that were analysed to obtain evidence of the transmission of this bacterium by ear biting. The contribution of non-infectious factors to this misbehaviour could not be ruled out as the crude protein concentration of the feed was inappropriate and the climate of the pig house was suboptimal. The concentrations of selected mycotoxins in the feed were not elevated. However, the contribution of both infectious and non-infectious factors to the onset of disease was most probable.", publisher = "Akademiai Kiado Zrt, Budapest", journal = "Acta Veterinaria Hungarica", title = "Investigation of possible aetiological/triggering factors in porcine ear necrosis syndrome at a farrow-to-feeder pig system", pages = "168-161", number = "2", volume = "69", doi = "10.1556/004.2021.00018", url = "conv_568" }
Kureljušić, B., Savić, B., Milićević, V., Jezdimirović, N., Radanović, O., Žutić, J.,& Weissenbacher-Lang, C.. (2021). Investigation of possible aetiological/triggering factors in porcine ear necrosis syndrome at a farrow-to-feeder pig system. in Acta Veterinaria Hungarica Akademiai Kiado Zrt, Budapest., 69(2), 161-168. https://doi.org/10.1556/004.2021.00018 conv_568
Kureljušić B, Savić B, Milićević V, Jezdimirović N, Radanović O, Žutić J, Weissenbacher-Lang C. Investigation of possible aetiological/triggering factors in porcine ear necrosis syndrome at a farrow-to-feeder pig system. in Acta Veterinaria Hungarica. 2021;69(2):161-168. doi:10.1556/004.2021.00018 conv_568 .
Kureljušić, Branislav, Savić, Božidar, Milićević, Vesna, Jezdimirović, Nemanja, Radanović, Oliver, Žutić, Jadranka, Weissenbacher-Lang, Christiane, "Investigation of possible aetiological/triggering factors in porcine ear necrosis syndrome at a farrow-to-feeder pig system" in Acta Veterinaria Hungarica, 69, no. 2 (2021):161-168, https://doi.org/10.1556/004.2021.00018 ., conv_568 .