Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/27334
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dc.contributor.authorHilliar, Men
dc.contributor.authorNinh, Hen
dc.contributor.authorMorgan, Nen
dc.contributor.authorHargreave, Gen
dc.contributor.authorBarekatain, Ren
dc.contributor.authorWu, Sen
dc.contributor.authorGirish, C Ken
dc.contributor.authorSwick, Ren
dc.date.accessioned2019-07-16T23:31:43Z-
dc.date.available2019-07-16T23:31:43Z-
dc.date.issued2018-
dc.identifier.citationProceedings of the Australian Poultry Science Symposium, v.29, p. 29-29en
dc.identifier.issn1034-6260en
dc.identifier.issn1034-3466en
dc.identifier.urihttps://hdl.handle.net/1959.11/27334-
dc.description.abstractLow protein diets are being investigated to reduce feed cost and address health, welfare and environmental concerns associated with feeding meat chickens excess dietary crude protein (CP). Low CP diets supplemented with only essential amino acids (AA) have failed to improve performance to that observed with standard CP diets (Dean et al., 2006). The non-essential amino acid glycine (Gly) is believed to become conditionally limiting as supplementation of Gly and essential AA in low CP diets have improved performance (Dean et al., 2006). Threonine (Thr) and serine (Ser) in vivo degradation both produce Gly as a product (Wu et al., 2013). Therefore, the aim of this study was to investigate the effects of supplementing Gly in comparison to Ser and Thr in low CP diets on meat chicken performance. Male day-old Ross 308 chicks (n=528), were fed a common starter diet containing wheat, sorghum, soybean meal and meat and bone meal from d 0 to d 7. On d 7, chicks were allocated to 48 pens of equal weight, resulting in 6 replicate pens of 11 chicks per pen for each treatment. Feed and water were provided ad libitum throughout the trial. Essential AA were supplemented when determined limiting using AMINOChick®2.0 software. The dietary treatments were: a standard CP diet containing meat and bone meal with a CP of 227 g/kg (SP), a LP vegetarian diet with a CP of 191 g/kg (LP) and the LP diet supplemented with Gly, Ser and Thr at two different concentrations, resulting in 8 treatments. The first AA level was to equal the amount of Gly+Ser in SP (16 g/kg), with Gly, Ser and Thr supplemented on an equimolar basis. The second AA level was based on a recommended Gly+Ser level of 18 g/kg suggested by Shutte et al. (1998). Feed intake and weight gain per pen from d 7-21 were recorded and the feed conversion ratio (cFCR) calculated, and corrected for mortalities. The SP diet had significantly lower cFCR compared to LP (1.241 vs 1.351, P < 0.001). Supplementation of Thr to the LP with 18 g/kg Gly+Ser significantly (P < 0.005) improved cFCR by 3.93% compared to the LP diet (1.298 vs. 1.351), but also resulted in significantly (P < 0.02) lower BWG with a difference of 65 g/bird (801 vs 866 g/bird). Supplementation of Gly and Ser at both levels to the LP treatment resulted in no significant improvement in BWG or cFCR. This proposes that the dietary level of Gly+Ser recommended by Shutte et al. (1998) is excessive at this CP level. The data from this study suggests that Thr cannot be supplemented as a precursor of Gly to offset lower BWG associated with low CP diets and that there is no difference between Ser and Gly supplementation.en
dc.languageenen
dc.publisherUniversity of Sydneyen
dc.relation.ispartofProceedings of the Australian Poultry Science Symposiumen
dc.titleInvestigating the Effects of Glycine and Glycine Equivalents on Meat Chicken Performance Under Low Protein Dietsen
dc.typeConference Publicationen
dc.relation.conferenceAPSS 2018: 29th Annual Australian Poultry Science Symposiumen
dcterms.accessRightsBronzeen
local.contributor.firstnameMen
local.contributor.firstnameHen
local.contributor.firstnameNen
local.contributor.firstnameGen
local.contributor.firstnameRen
local.contributor.firstnameSen
local.contributor.firstnameC Ken
local.contributor.firstnameRen
local.subject.for2008070202 Animal Growth and Developmenten
local.subject.for2008070203 Animal Managementen
local.subject.seo2008830309 Poultryen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailmhilliar@myune.edu.auen
local.profile.emailnmorga20@une.edu.auen
local.profile.emailswu3@une.edu.auen
local.profile.emailrswick@une.edu.auen
local.output.categoryE3en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.date.conference4th - 7th February, 2018en
local.conference.placeSydney, Australiaen
local.publisher.placeSydney, Australiaen
local.format.startpage29en
local.format.endpage29en
local.url.openhttps://sydney.edu.au/vetscience/apss/documents/2018/APSS%202018%20Proceedings%20Final.pdfen
local.peerreviewedYesen
local.identifier.volume29en
local.access.fulltextYesen
local.contributor.lastnameHilliaren
local.contributor.lastnameNinhen
local.contributor.lastnameMorganen
local.contributor.lastnameHargreaveen
local.contributor.lastnameBarekatainen
local.contributor.lastnameWuen
local.contributor.lastnameGirishen
local.contributor.lastnameSwicken
dc.identifier.staffune-id:mhilliaren
dc.identifier.staffune-id:nmorga20en
dc.identifier.staffune-id:swu3en
dc.identifier.staffune-id:rswicken
local.profile.orcid0000-0001-7292-0007en
local.profile.orcid0000-0002-9663-2365en
local.profile.orcid0000-0002-1790-6015en
local.profile.orcid0000-0003-3376-1677en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
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local.identifier.unepublicationidune:1959.11/27334en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleInvestigating the Effects of Glycine and Glycine Equivalents on Meat Chicken Performance Under Low Protein Dietsen
local.relation.fundingsourcenoteEvonik (SEA) Pte Ltd; AgriFuturesen
local.output.categorydescriptionE3 Extract of Scholarly Conference Publicationen
local.relation.urlhttps://sydney.edu.au/vetscience/apss/en
local.conference.detailsAPSS 2018: 29th Annual Australian Poultry Science Symposium, Sydney, Australia, 4th - 7th February, 2018en
local.search.authorHilliar, Men
local.search.authorNinh, Hen
local.search.authorMorgan, Nen
local.search.authorHargreave, Gen
local.search.authorBarekatain, Ren
local.search.authorWu, Sen
local.search.authorGirish, C Ken
local.search.authorSwick, Ren
local.uneassociationUnknownen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.year.published2018en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/493c3a51-58a2-404e-b30b-1ee51502fd00en
local.subject.for2020300301 Animal growth and developmenten
local.subject.for2020300302 Animal managementen
local.subject.seo2020100411 Poultryen
local.date.start2018-02-04-
local.date.end2018-02-07-
local.relation.worldcathttp://www.worldcat.org/oclc/34146878en
Appears in Collections:Conference Publication
School of Environmental and Rural Science
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