Correlation between the nematode egg count of bovine faecal samples and the worm burden in the region of Campinas, State of São Paulo, Brazil

Abstract

The experiment was conducted from March, 1980 to February 1984, at the Experimental Station of Campinas. Two animals a month were necropsied, one four to ten months old and the other six to ten years old. Those animals were housed in pen with cemented floor, for one month, when they were treated with a broad spectrum anthelmintic. Thereafter the animals were put to graze in contamined pasture for one month. After remove from pasture, the animals were maintained under worm free conditions for 20 to 25 days, when faecal samples for nematode egg counts were collected and counted for determination of the worm burden. Based on the data, the authors concluded that no have significant correlation, at a rate of 5% of probability, between the faecal nematode egg counts and the worm burden of those animals in the period studied, in the region of Campinas, State of São Paulo, Brazil.