Article Text

A prediction model for bovine ostertagiasis
  1. G Gettinby,
  2. K Bairden,
  3. J Armour and
  4. C Benitez-Usher

Abstract

A mathematical model based on development and mortality rates, and incorporating data on the infectivity, fecundity and migratory behaviour of Ostertagia ostertagi, was used to predict the level of pasture contamination and the occurrence of clinical ostertagiasis in grazing calves during 1975 and 1976. A comparison of the predicted and observed events showed a good correlation.

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