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Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/22443
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dc.contributor.authorSaki, Ali Asgharen
dc.date.issued1998en
dc.identifier.urihttp://hdl.handle.net/2440/22443-
dc.descriptionCorrigenda inserted behind title page.en
dc.descriptionCopies of author's previously published articles inserted at end.en
dc.descriptionIncludes bibliographical references (leaves 193-210).en
dc.descriptionxxii, 210 leaves : ill. (some col.) ; 30 cm.en
dc.description.abstractInvestigates whether estrogen modulates the proteins associated with calcium transport (eg calcium binding protein, calbindin D28k) in the intestinal tissue during sexual maturation of laying hens. Studies the temporal and spatial expression of estrogen receptors (ER) and calcium binding protein in jejunal tissue. Findings indicated the potential of estrogen to induce calbindin D28K in the intestinal tissue, from which it can be concluded that estrogen may increase calcium absorption and consequently calcium retention. Shows that the amount of estrogen normally present in the reproductive system is sufficient for the normal capacity of egg and eggshell production. Egg production and shell quality are significantly reduced by phytoestrogen. It is recommended that the concentration of phytoestrogen in poultry diets be investigated in more detail as it may act as an anti-nutritive factor and affect metabolism and productivity.en
dc.format.extent285420 bytesen
dc.format.mimetypeapplication/pdfen
dc.language.isoenen
dc.subject.lcshPoultry Feed utilization efficiency.en
dc.subject.lcshEggs Quality.en
dc.subject.lcshEggshells.en
dc.subject.lcshHormones in animal nutrition.en
dc.subject.lcshEstrogen Physiological effecten
dc.titleEffects of dietary calcium, phytoestrogen rich diets and estrogen on intestinal calcium transport proteins, egg and eggshell quality in maturing layer hens / Ali Asghar Saki.en
dc.typeThesisen
dc.contributor.schoolDept. of Animal Sciencesen
dc.provenanceCopyright material removed from digital thesis. See print copy in University of Adelaide Library for full text.-
dc.provenanceThis electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exception. If you are the author of this thesis and do not wish it to be made publicly available or If you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at: http://www.adelaide.edu.au/legals-
dc.description.dissertationThesis (Ph.D.)--University of Adelaide, Dept. of Animal Science, 1999en
Appears in Collections:Research Theses

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