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Gewählte Publikation:

Publikationstyp: Zeitschriftenaufsatz
Dokumentart: Originalarbeit

Publikationsjahr: 2020

AutorInnen: Abdank, L; Schoiswohl, J; Tichy, A; Schwarz, R; Krametter-Frotscher, R

Titel: Untersuchung zum Vorkommen von Magen-Darm- Strongyliden bei Rindern in der Südsteiermark.

Titelvariante: The occurrence of gastrointestinal nematodes in cattle in southern Styria (Austria)

Quelle: Wien Tierarztl Monat. 2020; 107(5-6): 116-126.

Autor/innen der Vetmeduni Vienna:

Krametter-Frötscher Reinhild
Schoiswohl Julia
Tichy Alexander

Beteiligte Vetmed-Organisationseinheiten
Universitätsklinik für Wiederkäuer, Klinische Abteilung für Wiederkäuermedizin
Plattform Bioinformatik und Biostatistik


Abstract:
Introduction We have evaluated the occurrence of nematodes in cattle in southern Styria, a Federal State of Austria. Faeces were collected from 193 cattle on 31 farms in spring and summer 2018 and farmers completed a questionnaire relating to parasite management. The results of the faecal analysis were compared with the data from the questionnaire. Materials and Methods Individual faecal samples of 193 cattle were collected from the ampulla recti in spring and summer 2018. Depending on the herd size, samples were collected from four to eight cows and calves per farm. All animals were clinically examined and Body Condition Score (BCS), colour of the conjunctiva and consistency of the faeces recorded. Faecal samples were examined quantitatively using the McMaster method with a detection limit of 50 eggs per gram (EpG) according to the standard operating procedure of TAYLOR (2010). The laboratory work was performed in the veterinary practice. Results Gastrointestinal infestations with nematodes were detected in 51.6 % of the farms, with faecal excretion of eggs of gastrointestinal parasites (MDS eggs) detected in 13.0 % of the 193 cattle examined. Twenty-four of the 189 adult cows and one of the four calves under six months old shed MDS eggs via faeces. EpG values were from 50 to 200 and 17 cows (44.7%) showed an EpG of 50. None of the negative farms fertilized their pastures. There was a significant relation between fertilizing with manure and the excretion of nematode eggs (p=0.018). Our results also show that animals treated with anthelmintics show fewer MDS infections than untreated animals (p=0.048). There were differences between the effects of the anthelmintics ivermectin and fenbendazol: 60.0 % of the farms in which cattle had been treated with ivermectin were MDS-positive, while only 12.5 % of the farms in which cattle and calves had been medicated with fenbendazol gave positive results. Nevertheless, this difference was not statistically significant (p=0.071). Conclusion Nematode infections are present in southern Styria but further studies will be necessary to provide a better overview of the parasitic status of calves and cows. The study shows an urgent need for investigations on anthelmintic treatments and potential resistances, which are also important because of the increasing problem of resistance worldwide.


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