Physiological responses to gastrointestinal nematode infection in sheep selected for genetic difference in resistance to 'Haemonchus contortus'

Title
Physiological responses to gastrointestinal nematode infection in sheep selected for genetic difference in resistance to 'Haemonchus contortus'
Publication Date
2007
Author(s)
Doyle, Emma Kate
Kahn, Lewis
( supervisor )
OrcID: https://orcid.org/0000-0002-3679-4530
Email: lkahn3@une.edu.au
UNE Id une-id:lkahn3
Nolan, John
McClure, Susan
Type of document
Thesis Doctoral
Language
en
Entity Type
Publication
UNE publication id
une:6648
Abstract
The benefit of selection for resistance to gastrointestinal (GI) nematode infection is a lower worm burden. The expectation is that resistant sheep should suffer less production loss due to a reduced parasite infection. Yet, productivity of resistant sheep is comparable to or lower than that of animals carrying a large parasite burden. This research was designed to determine if divergent selection for resistance to 'H. contortus' had produced correlated changes in one or more of the following variables, voluntary feed intake and diet selection, ruminal digestion and nutrient partitioning.
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