Seasonal prevalence of gastrointestinal nematodes of goats in Pernambuco State, Brazil.

Abstract

During each of 36.1 month periods from april 1979 to march 1982, 3-4 goats selected from typical farms were necroposied and examined for gastrointestinal nematodes. Every goat examined was found to be parasitized by more than one species of nematode. Haemonchus contortus, Strongyloides papillosus and Oesophagastromum columbionum were the most prevalent nematodes found. Total worm burdens present in the farm animals were highest during late rainylearly dry season (March-June) and lowest in mid-rainy season (January-February). The acquisition of nemadodes by tracer goats occurred mainly from mid-raimy to early dry season (January-June)

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