Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/5450
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dc.contributor.authorSwatson, H Ken
dc.contributor.authorIji, Paulen
dc.contributor.authorGous, R Men
dc.date.accessioned2010-04-06T16:13:00Z
dc.date.issued2003en
dc.identifier.citationJournal of Animal and Veterinary Advances, 2(5), p. 305-311en
dc.identifier.issn1993-601Xen
dc.identifier.issn1680-5593en
dc.identifier.urihttps://hdl.handle.net/1959.11/5450en
dc.description.abstractThe effects of varying dietary energy and protein (E:P) ratios on the development of the gastrointestinal tract and biological performance of broiler chickens (10-24d) were evaluated. Changes in dietary protein level significantly (P<0.001) influenced feed intake, body weight gain and feed conversion efficiency, this being most profound at dietary energy levels of 11, 12 and 13 MJ/kg. Body eight was reduced (P<0.001) as dietary E:P ratios decreased at constant dietary energy level. The weights of some visceral organs were also affected by dietary treatment. These included a reduction (P<0.05) in the weight of the proventriculus/gizzard with an increase in dietary protein and energy contents. At a dietary energy level of 12 MJ/kg, the weight of the pancreas rose (P<0.001) with an increase in dietary protein content. The jejunal protein content was affected (P<0.01) by dietary protein level and interactions between dietary energy and protein. Mucosal protein was lowest at the highest dietary E:P ratios within the 11, 12 and 13 ME series. Maltase activity in the jejunum was influenced (P<0.05) by dietary energy, being lowest (P<0.05) in chicks that were fed diets containing 14 MJ ME/kg. An increase in dietary E:P ratio resulted in an increase in the activity of sucrase (P<0.001) and AP (P<0.05) for birds fed diets in the 11, 12 and 13 ME series. Overall, our findings suggest that the differences in biological performance of chicks fed diets varying in energy and protein contents may be traceable to a lack of energy for metabolic function. The higher the amount of mucosal protein the greater may be the bird's digestive function and absorptive capacity. Some of the effects of varying dietary E:P ratio also appear to be linked to changes in intestinal digestive function.en
dc.languageenen
dc.publisherMedwell Journalsen
dc.relation.ispartofJournal of Animal and Veterinary Advancesen
dc.titleBody Growth, Visceral Organ Weight and Intestinal Digestive Enzyme of Chickens on Diets Varying in Energy and Protein Contentsen
dc.typeJournal Articleen
dc.subject.keywordsAnimal Nutritionen
dc.subject.keywordsAnimal Growth and Developmenten
local.contributor.firstnameH Ken
local.contributor.firstnamePaulen
local.contributor.firstnameR Men
local.subject.for2008070204 Animal Nutritionen
local.subject.for2008070202 Animal Growth and Developmenten
local.subject.seo2008830309 Poultryen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailpiji@une.edu.auen
local.output.categoryC2en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordpes:7193en
local.publisher.placeFaisalabad, Pakistanen
local.format.startpage305en
local.format.endpage311en
local.identifier.volume2en
local.identifier.issue5en
local.contributor.lastnameSwatsonen
local.contributor.lastnameIjien
local.contributor.lastnameGousen
dc.identifier.staffune-id:pijien
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:5580en
dc.identifier.academiclevelAcademicen
local.title.maintitleBody Growth, Visceral Organ Weight and Intestinal Digestive Enzyme of Chickens on Diets Varying in Energy and Protein Contentsen
local.output.categorydescriptionC2 Non-Refereed Article in a Scholarly Journalen
local.relation.urlhttp://www.medwelljournals.com/new/5/detail.php?id=5&jid=1680-5593&theme=5&articleno=javaa.2003.305.311en
local.description.statisticsepubsVisitors: 438<br />Views: 555<br />Downloads: 0en
local.search.authorSwatson, H Ken
local.search.authorIji, Paulen
local.search.authorGous, R Men
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School of Environmental and Rural Science
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