Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/2521
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dc.contributor.authorAoetpah, Aholiaben
dc.contributor.authorSavage, Darrylen
dc.contributor.authorNolan, Johnen
dc.contributor.authorGodwin, Ianen
dc.date.accessioned2009-10-16T14:09:00Z-
dc.date.created2007en
dc.date.issued2008-
dc.identifier.urihttps://hdl.handle.net/1959.11/2521-
dc.description.abstractConditions in the hot room in the climate-controlled housing used in this study were intended to simulate those experienced by Australian sheep in the post-discharge phase of the live export trade to the Middle East, i.e. 40°C and 60 % relative humidity between 0900 hand 1800 h and 30°C over night. Hot climatic conditions can lower an animal's production by altering physiological characteristics (body temperature, respiration rate, packed cell volume), behaviour (feed and water intake) and thereby affect feed digestibility, total excreta output and live-weight gain. The use of a yeast-based feed additive reputed to reduce the effects of heat stress was investigated in 16 Merino sheep in Expt. 1. A 2 x 2 factorial design was used with 1 group of 8 sheep in a hot room and the other group in a cool room; 4 sheep in each room were offered lucerne pellets containing the yeast-based feed additive and the other 4 were offered only lucerne pellets. Outer body temperatures (wool, skin and ear) and also mean respiration rates were higher (P<0.05) for sheep in the hot room than those in the cool room. Dry matter intake of sheep was higher (P<0.05) in the cool room but only during the hottest hours (0900 to 1700 h). Water intake and urine production were higher (P<0.05) in the hot room whereas feed intake and faecal output tended (P=0.07) to be higher in the cool room. The use of the yeast-based feed additive was beneficial, increasing growth rate of sheep (P<0.05). Respiration rate and other measurements were not influenced (P>O.05) by the use of the yeast-based feed additive. In Expt. 2, the effects of providing drinking water at different temperatures was studied in Merino sheep offered lucerne chaff ad libitum in hot or cool conditions.en
dc.languageenen
dc.titleHeat stress management of Merino sheep: Responses to drinking water temperature and a yeast-based feed additiveen
dc.typeThesis Masters Researchen
dcterms.accessRightsUNE Greenen
local.contributor.firstnameAholiaben
local.contributor.firstnameDarrylen
local.contributor.firstnameJohnen
local.contributor.firstnameIanen
dcterms.RightsStatementCopyright 2007 - Aholiab Aoetpahen
dc.date.conferred2008en
local.thesis.degreelevelMasters researchen
local.thesis.degreenameMaster of Rural Scienceen
local.contributor.grantorUniversity of New Englanden
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emaildsavage2@une.edu.auen
local.profile.emailjnolan@une.edu.auen
local.profile.emailigodwin@une.edu.auen
local.output.categoryT1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordvtls086376159en
local.title.subtitleResponses to drinking water temperature and a yeast-based feed additiveen
local.access.fulltextYesen
local.contributor.lastnameAoetpahen
local.contributor.lastnameSavageen
local.contributor.lastnameNolanen
local.contributor.lastnameGodwinen
dc.identifier.staffune-id:dsavage2en
dc.identifier.staffune-id:jnolanen
dc.identifier.staffune-id:igodwinen
local.profile.roleauthoren
local.profile.rolesupervisoren
local.profile.rolesupervisoren
local.profile.rolesupervisoren
local.identifier.unepublicationidune:2595en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleHeat stress management of Merino sheepen
local.output.categorydescriptionT1 Thesis - Masters Degree by Researchen
local.thesis.borndigitalnoen
local.search.authorAoetpah, Aholiaben
local.search.supervisorSavage, Darrylen
local.search.supervisorNolan, Johnen
local.search.supervisorGodwin, Ianen
local.open.fileurlhttps://rune.une.edu.au/web/retrieve/67ed73a1-41b2-4bd9-8653-17c7871ade97en
local.open.fileurlhttps://rune.une.edu.au/web/retrieve/7b6299bf-1ea6-44f0-aefe-1845b103f9been
local.uneassociationYesen
local.year.conferred2008en
local.fileurl.openhttps://rune.une.edu.au/web/retrieve/7b6299bf-1ea6-44f0-aefe-1845b103f9been
local.fileurl.openhttps://rune.une.edu.au/web/retrieve/67ed73a1-41b2-4bd9-8653-17c7871ade97en
Appears in Collections:School of Environmental and Rural Science
Thesis Masters Research
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