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The control of a parasitic nematode population in sheep represented by a discrete-time network with stochastic inputs

Paton, G. and Gettinby, G. (1983) The control of a parasitic nematode population in sheep represented by a discrete-time network with stochastic inputs. Proceedings of the Royal Irish Academy Section B-Biological Geological and Chemical Science, 83B (21). pp. 267-280. ISSN 0035-8983

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Abstract

The control of ostertagiasis, a parasitic disease endemic in sheep, has been examined using a discrete time network representation of the life-cycle of Ostertagia circumcincta. The system is developed for the case of stochastic inputs which enables the extent of variability in adult worm burdens in sheep to be determined during the grazing season. Disease levels are examined in relation to various recognised control techniques based on pasture switching and anthelmintic drug treatment.