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Gewählte Master / Diploma Thesis:

Susanne Beatrice Bollinger (2016): Status quo der Parasitenkontrolle auf biologisch wirtschaftenden Schaf- und Ziegenbetrieben in der Schweiz.
Master / Diploma Thesis - Institut für Nutztierwissenschaften (NUWI), BOKU-Universität für Bodenkultur, pp 59. UB BOKU obvsg FullText

Data Source: ZID Abstracts
Infections with gastrointestinal nematodes (GIN) are a major health issue in small ruminants. During the last decades, GIN were almost exclusively treated with synthetic anthelmintic drugs. The loss of efficacy through development of resistant GIN has led to an increased search for alternative strategies to control GIN. To capture the status quo of GIN control measures on organic sheep and goat farms in Switzerland, phone interviews were conducted with meat sheep farms (n=52) and dairy goat farms (n=58). Resistances against anthelmintics had been confirmed in 16% of the goat farms and 10% of the sheep farms, respectively. The farmers were aware of the resistance problems but the practical implementation of grazing management measures was limited. Sheep and goats were dewormed on average 1.5 and 1.3 times per year, respectively. Most of the farms dewormed the total herd which, in the case of sheep, is often a mandatory requirement of alpine cooperatives. More goat farmers were aware of the targeted selective treatment approach than sheep farmers, and goats were rather treated individually. Furthermore, goats were more often fed plants rich in tannins. There was willingness to accept higher costs and labour input (the extent was, however, not further defined) for efficient alternatives to anthelmintics. Derogations as regards zero-grazing production systems were strictly rejected. The differences between sheep and goat farms, e.g. the individual treatment of the animals or a reduced daily grazing duration, may presumably not only be explained by the different species but also by the different production systems (meat sheep vs. milk goats).

Beurteilende(r): Winckler Christoph

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