Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/30910
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dc.contributor.authorZanu, Holy Ken
dc.contributor.authorKheravii, Sarbast Ken
dc.contributor.authorMorgan, Natalie Ken
dc.contributor.authorBedford, Michael Ren
dc.contributor.authorSwick, Robert Aen
dc.date.accessioned2021-07-01T03:10:14Z-
dc.date.available2021-07-01T03:10:14Z-
dc.date.issued2020-09-
dc.identifier.citationAnimal Nutrition, 6(3), p. 313-324en
dc.identifier.issn2405-6383en
dc.identifier.issn2405-6545en
dc.identifier.urihttps://hdl.handle.net/1959.11/30910-
dc.description.abstractThis feeding study investigated the hypothesis that over-processing of meat and bone meal (MBM) would impair the performance, gut health and ileal digestibility of nutrients in birds challenged with necrotic enteritis (NE). The effect of phytase (500 vs. 5,000 FTU/kg) was also examined using manufacturers recommended matrix values for 500 FTU for both levels. Ross 308 male broilers (<i>n</i>=768) were assigned to 8 diets, with 6 replicate pens per diet and 16 birds per replicate pen using a randomized design with a factorial arrangement of treatments. Factors were NE challenge (no or yes), MBM (as received or over-processed), and phytase level (500 or 5,000 FTU/kg). Half of the birds were challenged with 5,000 oo-cysts offield strains of <i>Eimeria acervulina</i> and <i>Eimeria brunetti</i>, and 2,500 oocysts of <i>Eimeria maxima</i> on d 9 and 10<sup>8</sup> CFU/mL of <i>Clostridium perfringens</i> strain EHE-NE18 on d 14 and 15 post-hatch. Challenge × MBM interactions were detected for weight gain (WG), feed conversion ratio (FCR) and feed intake (FI) at d 14, 21 and 28, showing that challenged birds fed over-processed MBM had decreased WG (<i>P</i><0.05) and FI (<i>P</i><0.05) at d 14, increased FCR (<i>P</i><0.05) at d 21 and decreased WG (<i>P</i><0.05) and FI (<i>P</i>>0.05) at d 28. Birds fed low phytase had increased livability (<i>P</i><0.05) at d 42. The challenge increased the prevalence and severity of NE induced lesions in the jejunum (<i>P</i><0.05) and ileum (<i>P</i><0.05). The birds fed over-processed MBM had decreased pH in the jejunum (<i>P</i><0.05) and ileum (<i>P</i><0.05) at d 16. High phytase increased apparent ileal digestibility (AID) of Ca (<i>P</i><0.05) and P(<i>P</i><0.05), and over-processed MBM increased AID of carbon (C;<i>P</i><0.05) and Ca (<i>P</i><0.05) at d 29. The challenge increased the caecal counts of <i>Lactobacillus</i> spp. (<i>P</i><0.05) and <i>C. perfringens</i>(<i>P</i><0.05) at d 16. The results indicated that supplementation of diets with high phytase reduces the negative impact on performance from over-processed MBM during NE as a result of increased nutrient digestibility.en
dc.languageenen
dc.publisherZhongguo Xumu Shouyi Xuehui, Chinese Association of Animal Science and Veterinary Medicineen
dc.relation.ispartofAnimal Nutritionen
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleOver-processed meat and bone meal and phytase effects on broilers challenged with subclinical necrotic enteritis: Part 1. Performance, intestinal lesions and pH, bacterial counts and apparent ileal digestibilityen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.aninu.2020.03.004en
dc.identifier.pmid33005765en
dcterms.accessRightsUNE Greenen
local.contributor.firstnameHoly Ken
local.contributor.firstnameSarbast Ken
local.contributor.firstnameNatalie Ken
local.contributor.firstnameMichael Ren
local.contributor.firstnameRobert Aen
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.schoolSchool of Environmental and Rural Scienceen
local.profile.emailhzanu@myune.edu.auen
local.profile.emailsqassim2@une.edu.auen
local.profile.emailnmorga20@une.edu.auen
local.profile.emailmbedfor4@une.edu.auen
local.profile.emailrswick@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.publisher.placeChinaen
local.format.startpage313en
local.format.endpage324en
local.identifier.scopusid85089250499en
local.peerreviewedYesen
local.identifier.volume6en
local.identifier.issue3en
local.title.subtitlePart 1. Performance, intestinal lesions and pH, bacterial counts and apparent ileal digestibilityen
local.access.fulltextYesen
local.contributor.lastnameZanuen
local.contributor.lastnameKheraviien
local.contributor.lastnameMorganen
local.contributor.lastnameBedforden
local.contributor.lastnameSwicken
dc.identifier.staffune-id:hzanuen
dc.identifier.staffune-id:sqassim2en
dc.identifier.staffune-id:nmorga20en
dc.identifier.staffune-id:mbedfor4en
dc.identifier.staffune-id:rswicken
local.profile.orcid0000-0003-0518-6206en
local.profile.orcid0000-0002-9663-2365en
local.profile.orcid0000-0003-3376-1677en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:1959.11/30910en
local.date.onlineversion2020-04-20-
dc.identifier.academiclevelStudenten
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleOver-processed meat and bone meal and phytase effects on broilers challenged with subclinical necrotic enteritisen
local.relation.fundingsourcenoteThe authors hereby acknowledge AB Vista Feed Ingredient, Malborough, UK for funding this research.We also do acknowledge Brett Ruth of Ruth Consolidated Industries Pty. Ltd for providing the phytase enzyme we used in this study. Also, the University of New England (UNE), Armidale (Australia) is acknowledged for providing the international postgraduate research award (IPRA) to the lead author.en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorZanu, Holy Ken
local.search.authorKheravii, Sarbast Ken
local.search.authorMorgan, Natalie Ken
local.search.authorBedford, Michael Ren
local.search.authorSwick, Robert Aen
local.open.fileurlhttps://rune.une.edu.au/web/retrieve/74b23806-e06e-4a31-8648-40cbb74967b0en
local.uneassociationYesen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.identifier.wosid000572115800009en
local.year.available2020en
local.year.published2020en
local.fileurl.openhttps://rune.une.edu.au/web/retrieve/74b23806-e06e-4a31-8648-40cbb74967b0en
local.fileurl.openpublishedhttps://rune.une.edu.au/web/retrieve/74b23806-e06e-4a31-8648-40cbb74967b0en
local.subject.for2020300303 Animal nutritionen
local.subject.seo2020100411 Poultryen
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School of Environmental and Rural Science
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