Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/29272
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dc.contributor.authorDougherty, Hollanden
dc.contributor.authorEvered, Marken
dc.contributor.authorOltjen, Jamesen
dc.contributor.authorOddy, Huttonen
dc.contributor.authorHegarty, Rogeren
dc.date.accessioned2020-08-20T06:02:35Z-
dc.date.available2020-08-20T06:02:35Z-
dc.date.issued2020-
dc.identifier.citationp. 1-2en
dc.identifier.urihttps://hdl.handle.net/1959.11/29272-
dc.description.abstractThe nutritional effects of variation in feed supply and subsequent compensatory gain can play a significant role in cattle and beef production, due to their effects on carcass quality and feed costs. A system that predicts changes in fat and protein content of muscle and viscera in animals of different life stages and nutritional histories could therefore assist management to optimize performance and reduce costs of feed. A method has been developed to simultaneously estimate body composition and nutrient requirements of ruminants. This method estimates body composition from the difference in energy balance derived from ME intake and heat production from ME intake and protein content of muscle and viscera. Information on protein content of fat free mass in viscera and muscle (all non-viscera components of the body) is required by this new method. Data from the literature was combined with unpublished data from a study conducted in growing lambs. This experiment tested the effects of ad libitum intake of diets of varying energy density and added RUP on performance and carcass composition of lambs that had been previously restricted or unrestricted prior to a 12-13 week finishing phase, and both carcass and viscera components were chemically analysed on an individual basis. On a fat-free basis, muscle crude protein averaged 20.8%, with no effect of nutritional history or current diet; these numbers are in agreement with literature values, which lie between the range of 20-24% and which do not appear to vary substantially with age in postweaning sheep. In the same sheep, crude protein of viscera was affected by past and current nutritional state, and ranged from 15.3 to 16.2 % crude protein on a fat-free basis, averaging 15.7%. These values are within range of the limited literature data available on visceral composition. This data is use to parameterize functions describing growth of viscera and changes in heat production over time. This contributes to the method we have developed to estimate nutritional effects on body composition.en
dc.languageenen
dc.titleCrude protein-content of fat-free muscle and viscera in sheepen
dc.typeConference Publicationen
dc.relation.conference2020 American Society of Animal Science (ASAS) - Canadian Society of Animal Science (CSAS) Annual Meeting & Trade Showen
dcterms.accessRightsBronzeen
local.contributor.firstnameHollanden
local.contributor.firstnameMarken
local.contributor.firstnameJamesen
local.contributor.firstnameHuttonen
local.contributor.firstnameRogeren
local.subject.for2008070204 Animal Nutritionen
local.subject.for2008070103 Agricultural Production Systems Simulationen
local.subject.for2008070203 Animal Managementen
local.subject.seo2008830310 Sheep - Meaten
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Science and Technologyen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailhdoughe2@une.edu.auen
local.profile.emailmevered@une.edu.auen
local.profile.emailhoddy2@une.edu.auen
local.profile.emailrhegart3@une.edu.auen
local.output.categoryE3en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.date.conference19th - 23rd July, 2020en
local.conference.placeOnline Eventen
local.publisher.placeOnlineen
local.identifier.runningnumber225en
local.format.startpage1en
local.format.endpage2en
local.url.openhttps://www.eventscribe.com/2020/ASASAnnual/agenda.asp?pfp=FullScheduleen
local.access.fulltextYesen
local.contributor.lastnameDoughertyen
local.contributor.lastnameEvereden
local.contributor.lastnameOltjenen
local.contributor.lastnameOddyen
local.contributor.lastnameHegartyen
dc.identifier.staffune-id:hdoughe2en
dc.identifier.staffune-id:mevereden
dc.identifier.staffune-id:hoddy2en
dc.identifier.staffune-id:rhegart3en
local.profile.orcid0000-0001-9918-4986en
local.profile.orcid0000-0003-1783-1049en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/29272en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleCrude protein-content of fat-free muscle and viscera in sheepen
local.output.categorydescriptionE3 Extract of Scholarly Conference Publicationen
local.relation.urlhttps://www.asas.org/meetings/annual-2020en
local.conference.details2020 American Society of Animal Science (ASAS) - Canadian Society of Animal Science (CSAS) Annual Meeting & Trade Show, Online Event, 19th - 23rd July, 2020en
local.search.authorDougherty, Hollanden
local.search.authorEvered, Marken
local.search.authorOltjen, Jamesen
local.search.authorOddy, Huttonen
local.search.authorHegarty, Rogeren
local.uneassociationYesen
dc.date.presented2020-07-20-
local.atsiresearchNoen
local.conference.venueOnline Eventen
local.sensitive.culturalNoen
local.year.published2020-
local.year.presented2020en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/b90f99e6-1ba6-4fe2-accd-fac1f2b258f4en
local.subject.for2020300303 Animal nutritionen
local.subject.for2020300205 Agricultural production systems simulationen
local.subject.for2020300302 Animal managementen
local.subject.seo2020100412 Sheep for meaten
local.date.start2020-07-19-
local.date.end2020-07-23-
Appears in Collections:Conference Publication
School of Environmental and Rural Science
School of Science and Technology
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