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In 1976 to 1978, the occurrence of helminths in a large reproduction herd of pigs was studied in different age categories of the animals kept. Six helminth species were found in 30.7% of the sows: Ascaris suum (6.6%), Oesophagostomum dentatum (24.0%), Hyostrongylus rubidus (3.3%), Trichocephalus suis (1.3%), Strongyloides ransomi (0.7%), Metastrongylus sp.(More)
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