[Risk factors for chronic perforating skin lesions in the area of the digits in cattle on Swiss alpine pastures].

Clavadetscher, G; Biner, B; Schaub, M; Studer, E; Dürr, S; Blatter, S; Schmelz, P; Steinborn, R; Brandt, S; Seuberlich, T; Steiner, A; Alsaaod, Maher (2023). [Risk factors for chronic perforating skin lesions in the area of the digits in cattle on Swiss alpine pastures]. Schweizer Archiv für Tierheilkunde, 165(12), pp. 771-782. Gesellschaft Schweizer Tierärztinnen und Tierärzte 10.17236/sat00412

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Diseases of the digits often occur in cattle on larger cattle mountain pastures. In the late spring 2020, at the time of the ascent of 1554 cattle to 11 high altitude alpine pastures in the Lower Engadine region, lesions in the area of the digits were clinically assessed and documented. 254 cattle were of non-cantonal and 1300 of local origin (Lower Engadine; postal code CH-75XX). Skin lesions in the area of the digits, identified as digital dermatitis (DD; Mortellaro's disease), were further classified according to the DD scoring system. Nonspecific skin lesions with clinical evidence of granulation tissue formation were termed chronic penetrating skin lesions (CPSL). At the end of the alpine pasturing season, in the early fall (descent of cattle from the alpine pastures), the procedure was repeated, and biopsies were taken from randomly selected cattle with CPSL. Digital dermatitis lesions were found in 34 of 1551 cattle at ascent, but no case of CPSL was found at that time. At descent, 19 of 1529 cattle had DD lesions and 88 cattle had CPSL. The clinical appearance of the CPSL was consistent with chronic skin lesions caused by penetrating skin lacerations. Histologically, the majority of the CPSL were classified as chronic hyperplastic dermatitis with granulation tissue formation. In all CPSL biopsies examined by PCR, Fusobacterium necrophorum and Porphyromonas levii, but neither Dichelobacter nodosus nor the tested Treponema species were detected. Fluorescence in situ hybridization revealed a negative result for Treponema species in all biopsies. In the regression analysis, cattle in the age group of 365 to 730 days had an increased risk for the presence of CPSL compared to the age group of 160 to 365 days (odds ratio (OR) = 4,95; confidence interval (CI) = 1,97-12,43). Holstein cattle had an increased risk of developing CPSL compared to Brown cattle (OR = 2,92; CI = 1,46-5,86) and cattle of non-cantonal origin showed a massively higher risk compared to local cattle (OR = 10,59; CI = 5,79 - 19,37). The statistically significant associations found in the present study can be taken into account in the selection of animals for summer pasturing on high altitudes in the future in order to reduce the prevalence of CPSL and consequently reduce the antimicrobial use. Spread of DD during the alpine pasturing season within the cattle groups examined was not found.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV)
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Veterinary Public Health Institute
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Experimental Clinical Research
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Animal Pathology
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP)
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)

UniBE Contributor:

Schaub, Melanie, Studer, Eveline, Dürr, Salome Esther, Blatter, Sohvi Tuulikki, Seuberlich, Torsten, Steiner, Adrian, Alsaaod, Maher

Subjects:

600 Technology > 630 Agriculture
500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health

ISSN:

1664-2848

Publisher:

Gesellschaft Schweizer Tierärztinnen und Tierärzte

Language:

German

Submitter:

Nathalie Viviane Zollinger

Date Deposited:

07 Dec 2023 12:22

Last Modified:

07 Dec 2023 12:22

Publisher DOI:

10.17236/sat00412

PubMed ID:

38014543

Uncontrolled Keywords:

Alpine pasture Alpung Alter Lahmheit Rasse Rindvieh age alpage boiterie bovin bovini breed cattle chronic perforating skin lesions chronisch perforierende Hautläsionen età lameness lesioni cutanee croniche perforanti lésion cutanée perforante chronique pascolo alpino race razza zoppia âge

URI:

https://boris.unibe.ch/id/eprint/189855

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