Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/704
Full metadata record
DC FieldValueLanguage
dc.contributor.authorHermesch, Susanneen
dc.contributor.authorKanis, Een
dc.contributor.authorEissen, JJen
dc.date.accessioned2008-07-30T14:42:00Z
dc.date.issued2003-
dc.identifier.citationJournal of Animal Science, 81(4), p. 895-903en
dc.identifier.issn0021-8812en
dc.identifier.urihttps://hdl.handle.net/1959.11/704en
dc.description.abstractEconomic weights are obtained for feed intake using a growth model and an economic model. The underlying concept of the growth model is the linear plateau model. Parameters of this model are the marginal ratio (MR) of extra fat and extra protein deposition with increasing feed intake (FI) and the maximum protein deposition (Pd<sub>max</sub>). The optimum feed intake (FI<sub>0</sub>) is defined as the minimum feed intake that meets energy requirements for Pd<sub>max</sub>. The effect of varying FI and MR on performance traits was determined.An increase in FI results in a larger increase in growth rate with lower MR. For a given MR, feed conversion ratio is lowest when FI equals FI<sub>0</sub>. Lean meat percentage (LMP) is largest for a low MR in combination with a low FI. The decrease in LMP with higher FI is largest when FI exceeds FI<sub>0</sub>.Economic weights for FI, MR and Pd<sub>max</sub> depend on FI in relation to FI<sub>0</sub>.Economic weights for FI are positive when FI is less than FI<sub>0</sub> and negative when FI is larger than FI<sub>0</sub>. The MR has only then a negative economic weight, when FI is below FI<sub>0</sub>.Economic weights of FI and MR have a larger magnitude with lower MR and lower FI. In contrast, economic weights for growth rate and FI derived from the economic model only change in magnitude and not in sign with different levels of these traits. The economic model always puts a negative economic weight on FI since it expresses profit due to a decrease in FI with constant growth rate and LMP. This holds the risk of continuous decrease in FI in pig breeding programs. In contrast, the use of growth models for genetic improvement allows direct selection for an optimum feed intake which maximizes feed efficiency in combination with maximum lean meat growth. It is concluded that recording procedures have to be adapted to collect the data necessary to implement growth models in practical pig breeding applications.en
dc.languageenen
dc.publisherAmerican Society of Animal Scienceen
dc.relation.ispartofJournal of Animal Scienceen
dc.titleEconomic weights for feed intake in the growing derived from a growth model and an economic modelen
dc.typeJournal Articleen
dcterms.accessRightsUNE Greenen
dc.subject.keywordsAnimal Breedingen
local.contributor.firstnameSusanneen
local.contributor.firstnameEen
local.contributor.firstnameJJen
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830308 Pigsen
local.subject.seo630105 Pigsen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.emailSusanne.Hermesch@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordpes:800en
local.publisher.placeSavoy, Illinois, USAen
local.format.startpage895en
local.format.endpage903en
local.peerreviewedYesen
local.identifier.volume81en
local.identifier.issue4en
local.access.fulltextYesen
local.contributor.lastnameHermeschen
local.contributor.lastnameKanisen
local.contributor.lastnameEissenen
dc.identifier.staffune-id:skahtenben
local.profile.orcid0000-0002-9647-5988en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:717en
dc.identifier.academiclevelAcademicen
local.title.maintitleEconomic weights for feed intake in the growing derived from a growth model and an economic modelen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.relation.urlhttp://jas.fass.org/cgi/content/abstract/81/4/895en
local.description.statisticsepubsVisitors: 151<br />Views: 148<br />Downloads: 4en
local.search.authorHermesch, Susanneen
local.search.authorKanis, Een
local.search.authorEissen, JJen
local.open.fileurlhttps://rune.une.edu.auweb/retrieve/118a8a53-417d-4656-8727-6cb3543b626ben
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Journal Article
Files in This Item:
5 files
File Description SizeFormat 
open/SOURCE01.pdfPublisher version (open access)212.12 kBAdobe PDF
Download Adobe
View/Open
Show simple item record

Page view(s)

68
checked on Feb 8, 2019

Download(s)

10
checked on Feb 8, 2019
Google Media

Google ScholarTM

Check


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.