Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/19689
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dc.contributor.authorHafeez, Aen
dc.contributor.authorMader, Aen
dc.contributor.authorRuhnke, Isabelleen
dc.contributor.authorManner, Ken
dc.contributor.authorZentek, Jen
dc.date.accessioned2016-12-08T09:45:00Z-
dc.date.issued2016-
dc.identifier.citationPoultry Science, 95(1), p. 62-69en
dc.identifier.issn1525-3171en
dc.identifier.issn0032-5791en
dc.identifier.urihttps://hdl.handle.net/1959.11/19689-
dc.description.abstractThe grinding of cereals by various milling methods as well as thermal treatment of feed may influence mineral digestibility and egg quality. The present study investigated the effect of feed produced by disc mill (D) and wedge-shaped disc mill (WSD), as mash (M) or expandate (E) on apparent ileal absorption (AIA) and apparent total digestibility (ATD) of calcium, phosphorus, magnesium, zinc, manganese, copper and iron, as well as on egg quality in laying hens. A total of 192 hens (Lohmann Brown) aged 19 wk, were assigned using a randomized design with a 2 X 2 factorial arrangement. Four experimental diets were offered 'ad libitum'. Eggs were analyzed for weight, shape index, area, shell weight per unit surface area, yolk color, air cell, blood spot, Haugh unit, albumen and yolk measures (index, weight, height, width and length), shell measures (surface area, stability, density, thickness and membrane weight), as well as percent contents of albumen, yolk, shell, and shell membrane. The ATD for phosphorus, manganese, and copper was higher in WSD compared with D treatment (P = 0.028, P = 0.028 and P = 0.016, respectively). The interaction between milling methods and thermal treatment influenced ATD of copper (P = 0.033), which was higher in WSD+M group (41.0 ± 20.2) compared with D+E group (-3.21 ± 25.1), whereas no differences were observed for D+M (1.90 ± 37.8) and WSD+E (8.02 ± 36.2) groups. Egg stability tended to be higher in E compared with M treatment (P = 0.055). Albumen weight, percentage albumen weight, and albumen: yolk were higher and percentage yolk weight was lower in D compared with WSD treatment (P = 0.043, P = 0.027, P = 0.024, and P = 0.041, respectively). Number of blood spots was higher in E than M treatment (P = 0.053). In conclusion, use of a wedge-shaped disc mill resulted in higher ATD for phosphorus, manganese, and copper than use of a disc mill; however, digestibility for majority of minerals as well as egg quality parameters was comparable. Therefore, feed produced by either disc mill or wedge-shaped disc mill as mash or expandate may be used for laying hens without negative effects on egg quality.en
dc.languageenen
dc.publisherOxford University Pressen
dc.relation.ispartofPoultry Scienceen
dc.titleEffect of feed grinding methods with and without expansion on prececal and total tract mineral digestibility as well as on interior and exterior egg quality in laying hensen
dc.typeJournal Articleen
dc.identifier.doi10.3382/ps/pev316en
dcterms.accessRightsGolden
dc.subject.keywordsAnimal Nutritionen
local.contributor.firstnameAen
local.contributor.firstnameAen
local.contributor.firstnameIsabelleen
local.contributor.firstnameKen
local.contributor.firstnameJen
local.subject.for2008070204 Animal Nutritionen
local.subject.seo2008830501 Eggsen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailiruhnke@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20161007-21471en
local.publisher.placeUnited States of Americaen
local.format.startpage62en
local.format.endpage69en
local.identifier.scopusid84959923412en
local.peerreviewedYesen
local.identifier.volume95en
local.identifier.issue1en
local.access.fulltextYesen
local.contributor.lastnameHafeezen
local.contributor.lastnameMaderen
local.contributor.lastnameRuhnkeen
local.contributor.lastnameManneren
local.contributor.lastnameZenteken
dc.identifier.staffune-id:iruhnkeen
local.profile.orcid0000-0001-5423-9306en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:19879en
dc.identifier.academiclevelAcademicen
local.title.maintitleEffect of feed grinding methods with and without expansion on prececal and total tract mineral digestibility as well as on interior and exterior egg quality in laying hensen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorHafeez, Aen
local.search.authorMader, Aen
local.search.authorRuhnke, Isabelleen
local.search.authorManner, Ken
local.search.authorZentek, Jen
local.uneassociationUnknownen
local.year.published2016en
local.fileurl.closedpublishedhttps://rune.une.edu.au/web/retrieve/282f66b1-0cc0-4de7-8ace-5b7dd2a174c7en
local.subject.for2020300303 Animal nutritionen
local.subject.seo2020100601 Eggsen
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