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  • Title: Seasonal variations in the populations of infective larvae on pasture and the numbers of nematode eggs in the faeces of farmed goats.
    Author: Rahman WA, Collins GH.
    Journal: J Helminthol; 1990 Sep; 64(3):263-70. PubMed ID: 2230037.
    Abstract:
    The levels of nematode egg production in goats and the availability of infective larvae (L3) on pasture were investigated on a dairy unit in New South Wales, Australia. The output of eggs by adult goats was always above 300 epg. The profile of the graph of larval availability in herbage paralleled those for temperature and rainfall, suggesting that larval peaks occurred when the temperature and availability of moisture were optimal. The dominant genus was Trichostrongylus, followed by Haemonchus, then Ostertagia. A larger proportion of Haemonchus larvae in the cultures of faeces were collected during the summer months.
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