The effect of dietary alterations on growth, productivity, behaviour and preference of broiler breeder females.

dc.contributor.advisorWidowski, Tina
dc.contributor.advisorTorrey, Stephanie
dc.contributor.authorMorrissey, Krysta
dc.date.accessioned2012-09-10T14:12:27Z
dc.date.available2012-09-10T14:12:27Z
dc.date.copyrightSep-12
dc.date.created2012-08-31
dc.date.issued2012-09-10
dc.degree.departmentDepartment of Animal and Poultry Scienceen_US
dc.degree.departmentCampbell Centre for the Study of Animal Welfareen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeAnimal and Poultry Scienceen_US
dc.description.abstractThis thesis is an investigation of dietary alterations, including the addition of fibre and an appetite suppressant (alternative diet) and the use of a skip-a-day (SAD) feeding regime, which may reduce hunger. Broiler breeders are severely feed restricted to limit growth, leading to symptoms of chronic hunger. We used behavioural indices, feather condition scoring and preference tests were used to compare satiating properties of the diets. Alternative diets reduced symptoms of hunger such as feather, object and aggressive pecking and resulted in better feather condition. Although SAD birds feather pecked more during feeding bouts, SAD birds still had better feather condition than daily birds. Preference testing revealed no differences in dietary preference, implying a lack of preference, or a methodological flaw. However, no aversion to the alternative diet was evident. Alternative diets, regardless of feeding frequency, may be the best option for bettering the welfare of growing broiler breeders.en_US
dc.description.sponsorshipAgriculture and Agri-Food Canada
dc.description.sponsorshipOntario Ministry of Agriculture, Food and Rural Affairs
dc.description.sponsorshipCanadian Poultry Research Council
dc.identifier.urihttp://hdl.handle.net/10214/3957
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectbroiler breederen_US
dc.subjecthungryen_US
dc.subjecthungeren_US
dc.subjectsatietyen_US
dc.subjectfibreen_US
dc.subjecthigh fibreen_US
dc.subjectcalcium propionateen_US
dc.subjectappetiteen_US
dc.subjectappetite suppressanten_US
dc.subjectpreferenceen_US
dc.subjectstereotypiesen_US
dc.subjectpoultryen_US
dc.subjecthenen_US
dc.subjectfemaleen_US
dc.titleThe effect of dietary alterations on growth, productivity, behaviour and preference of broiler breeder females.en_US
dc.typeThesisen_US

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