Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/18197
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dc.contributor.authorWu, Dien
dc.contributor.authorWu, Shubiaoen
dc.contributor.authorChoct, Minganen
dc.contributor.authorSwick, Robert Aen
dc.date.accessioned2015-11-26T16:02:00Z-
dc.date.issued2015-
dc.identifier.citationPoultry Science, 94(11), p. 2670-2676en
dc.identifier.issn1525-3171en
dc.identifier.issn0032-5791en
dc.identifier.urihttps://hdl.handle.net/1959.11/18197-
dc.description.abstractThe net energy (NE) value may be a better measure than apparent metabolizable energy (ME) of the effect of supplemental phytase on energy utilization in broilers. The present study was conducted to assess the impact of 3 microbial phytases supplemented at an unconventionally high level (1,000 FTU/kg feed) on performance and NE of broilers using the indirect calorimetric method (IC). Four treatments included: 1) Control, formulated to be deficient in ME (12.35 MJ/kg in the starter diet; 12.56 MJ/kg in the grower diet), calcium (0.72% in the starter diet; 0.60% in the grower diet), and available phosphorus (0.25% in the starter diet; 0.20% in the grower diet); 2) control + intrinsically thermostable phytase A; 3) control + intrinsically thermostable phytase B; and 4) control + coated phytase C. A completely randomized design was employed. A total of 384 male broiler chicks were used, and each treatment had 6 replicates with 16 birds per replicate. The birds were reared until d 21 in floor pens with hardwood shavings. Thirty-two birds (8 birds per treatment) were randomly selected to determine heat production and NE (from 25-28 d) following a 3-d acclimatization in the respiratory chambers. Performance results at d 21 showed that supplementation with either of the 3 phytases improved body weight (P < 0.001) and feed intake (P < 0.05), and increased the relative weights of tibia ash (P < 0.05) and toe ash (P < 0.01). Phytases A and B increased the NE value of the diet (P < 0.05). It may be concluded that the negative effects imposed by calcium and available phosphorus down-specification can be compensated by phytase supplementation in general, and intrinsically thermostable phytases improve the ME and NE value. However, phytase did not reduce heat production, heat increment, or increase NE:ME in birds.en
dc.languageenen
dc.publisherOxford University Pressen
dc.relation.ispartofPoultry Scienceen
dc.titleComparison of 3 phytases on energy utilization of a nutritionally marginal wheat-soybean meal broiler dieten
dc.typeJournal Articleen
dc.identifier.doi10.3382/ps/pev222en
dcterms.accessRightsGolden
dc.subject.keywordsAnimal Nutritionen
local.contributor.firstnameDien
local.contributor.firstnameShubiaoen
local.contributor.firstnameMinganen
local.contributor.firstnameRobert Aen
local.subject.for2008070204 Animal Nutritionen
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.schoolResearch Centres, Institutes, CRCsen
local.profile.emaildwu3@myune.edu.auen
local.profile.emailswu3@une.edu.auen
local.profile.emailmchoct@une.edu.auen
local.profile.emailrswick@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20151125-152937en
local.publisher.placeUnited States of Americaen
local.format.startpage2670en
local.format.endpage2676en
local.identifier.scopusid84948454199en
local.peerreviewedYesen
local.identifier.volume94en
local.identifier.issue11en
local.access.fulltextYesen
local.contributor.lastnameWuen
local.contributor.lastnameWuen
local.contributor.lastnameChocten
local.contributor.lastnameSwicken
dc.identifier.staffune-id:dwu3en
dc.identifier.staffune-id:swu3en
dc.identifier.staffune-id:mchocten
dc.identifier.staffune-id:rswicken
local.profile.orcid0000-0002-1790-6015en
local.profile.orcid0000-0002-2242-8222en
local.profile.orcid0000-0003-3376-1677en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:18403en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleComparison of 3 phytases on energy utilization of a nutritionally marginal wheat-soybean meal broiler dieten
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorWu, Dien
local.search.authorWu, Shubiaoen
local.search.authorChoct, Minganen
local.search.authorSwick, Robert Aen
local.uneassociationUnknownen
local.identifier.wosid000363708400011en
local.year.published2015en
local.subject.for2020300303 Animal nutritionen
local.subject.seo2020100411 Poultryen
Appears in Collections:Journal Article
School of Environmental and Rural Science
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