Detecting self-medication by grazing sheep against gastrointestinal nematodes

Title
Detecting self-medication by grazing sheep against gastrointestinal nematodes
Publication Date
2013
Author(s)
Fishpool, Fiona Joy
Kahn, Lewis
( supervisor )
OrcID: https://orcid.org/0000-0002-3679-4530
Email: lkahn3@une.edu.au
UNE Id une-id:lkahn3
Tucker, David
Nolan, John
Leng, Ronald
Type of document
Thesis Doctoral
Language
en
Entity Type
Publication
UNE publication id
une:13723
Abstract
Medicated feed blocks (MFB, containing an anthelmintic) could be used to control gastrointestinal nematodes (GIN) in sheep to achieve voluntary targeted selective treatment (TST) or self-medication. This would have the advantage of reduced selection pressure for anthelmintic resistance and reduced labour associated with providing treatment. The dynamics of MFB intake by sheep in a grazing environment are largely unknown because current techniques are not suitable for measuring supplement intake in grazing animals and/or measuring intake over a prolonged period. The experiments in this thesis were designed for two purposes. Firstly, to develop a technique that met the requirements of a marker of MFB intake for use over an extended period in grazing livestock. Secondly, to use this technique to determine if an MFB could be used to achieve voluntary TST by establishing if grazing sheep display self-medication in response to GIN infection.
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