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https://hdl.handle.net/1959.11/15604
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DC Field | Value | Language |
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dc.contributor.author | Macarthur, Fiona Anne | en |
dc.contributor.author | Kahn, Lewis | en |
dc.contributor.author | Windon, R G | en |
dc.date.accessioned | 2014-09-04T12:55:00Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Livestock Science, 157(2-3), p. 568-576 | en |
dc.identifier.issn | 1871-1413 | en |
dc.identifier.uri | https://hdl.handle.net/1959.11/15604 | - |
dc.description.abstract | The benefit of providing prepartum protein supplementation to twin-bearing Merino ewes with low and high fat score (FS; measure of soft tissue depth related to fatness) was investigated to quantify effects on host resilience and immunity to 'Haemonchus contortus'. The experiment was conducted on low quality pastures from day (d) -91 to weaning at d 52, relative to the mid-point of lambing (d 0). The experimental design consisted of two feeding regimes designed to achieve FS targets of 2 (low) and 4 (high) by d -47 followed by allocation to protein supplementation groups (0 or 200 g/d cottonseed meal; CSM) until d 10. Throughout the experiment there were two infection groups (0 or 750 'H. contortus' third stage larvae (L₃)/week). Peri and postparturient ewes were susceptible to 'H. contortus' shown as a rise in worm egg count (WEC). High FS group ewes had a significant benefit in terms of protection against 'H. contortus', but this was restricted to the prepartum period. There were no benefits of supplemental protein which did not enhance protective immunity. Lower prepartum WEC from high FS ewes was associated with higher levels of circulating eosinophils but a general decline in counts occurred prior to parturition. Infected ewes had elevated antibody titres and a greater number of mast cells in abomasal tissue at slaughter on d 52. The results suggest that sufficient fat and protein reserves are important for twin-bearing Merino ewes during pregnancy to elevate the immune response against 'H. contortus' whereas strategic prepartum protein supplementation had no benefit. | en |
dc.language | en | en |
dc.publisher | Elsevier BV | en |
dc.relation.ispartof | Livestock Science | en |
dc.title | Immune response of twin-bearing Merino ewes when infected with 'Haemonchus contortus': Effects of fat score and prepartum supplementation | en |
dc.type | Journal Article | en |
dc.identifier.doi | 10.1016/j.livsci.2013.08.017 | en |
dc.subject.keywords | Veterinary Parasitology | en |
dc.subject.keywords | Animal Protection (Pests and Pathogens) | en |
local.contributor.firstname | Fiona Anne | en |
local.contributor.firstname | Lewis | en |
local.contributor.firstname | R G | en |
local.subject.for2008 | 070708 Veterinary Parasitology | en |
local.subject.for2008 | 070205 Animal Protection (Pests and Pathogens) | en |
local.subject.seo2008 | 830311 Sheep - Wool | en |
local.profile.school | School of Environmental and Rural Science | en |
local.profile.school | Office of Faculty of Science, Ag, Business and Law | en |
local.profile.email | fmacarth@une.edu.au | en |
local.profile.email | lkahn3@une.edu.au | en |
local.output.category | C1 | en |
local.record.place | au | en |
local.record.institution | University of New England | en |
local.identifier.epublicationsrecord | une-20140827-142722 | en |
local.publisher.place | Netherlands | en |
local.format.startpage | 568 | en |
local.format.endpage | 576 | en |
local.identifier.scopusid | 84886726560 | en |
local.peerreviewed | Yes | en |
local.identifier.volume | 157 | en |
local.identifier.issue | 2-3 | en |
local.title.subtitle | Effects of fat score and prepartum supplementation | en |
local.contributor.lastname | Macarthur | en |
local.contributor.lastname | Kahn | en |
local.contributor.lastname | Windon | en |
dc.identifier.staff | une-id:fmacarth | en |
dc.identifier.staff | une-id:lkahn3 | en |
local.profile.orcid | 0000-0002-3679-4530 | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.identifier.unepublicationid | une:15840 | en |
local.identifier.handle | https://hdl.handle.net/1959.11/15604 | en |
dc.identifier.academiclevel | Academic | en |
local.title.maintitle | Immune response of twin-bearing Merino ewes when infected with 'Haemonchus contortus' | en |
local.output.categorydescription | C1 Refereed Article in a Scholarly Journal | en |
local.search.author | Macarthur, Fiona Anne | en |
local.search.author | Kahn, Lewis | en |
local.search.author | Windon, R G | en |
local.uneassociation | Unknown | en |
local.identifier.wosid | 000327105700023 | en |
local.year.published | 2013 | en |
local.subject.for2020 | 300909 Veterinary parasitology | en |
local.subject.for2020 | 300304 Animal protection (incl. pests and pathogens) | en |
local.subject.seo2020 | 100413 Sheep for wool | en |
Appears in Collections: | Journal Article |
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