Pathology and diagnosis of internal parasites in ruminants
نویسندگان
چکیده
Parasitic infections are generally regarded as the most prevalent and important health problems of grazing ruminants in Australia, with losses associated with nematodes, and ectoparasites causing a combined annual loss of approximately a billion dollars (McLeod 1995). Liver fluke, although having a restricted distribution in temperate regions has been estimated to cost upwards of $100 million (Boray 1999).
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