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

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

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dc.contributor.advisor Widowski, Tina
dc.contributor.advisor Torrey, Stephanie
dc.contributor.author Morrissey, Krysta
dc.date 2012-08-31
dc.date.accessioned 2012-09-10T14:12:27Z
dc.date.available 2012-09-10T14:12:27Z
dc.date.issued 2012-09-10
dc.identifier.uri http://hdl.handle.net/10214/3957
dc.description.abstract This 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.sponsorship Agriculture and Agri-Food Canada, OMAFRA, Canadian Poultry Research Council en_US
dc.language.iso en en_US
dc.subject broiler breeder, hungry, hunger, satiety, fibre, high fibre, calcium propionate, appetite, appetite suppressant, preference, stereotypies, poultry, hen, female en_US
dc.title The effect of dietary alterations on growth, productivity, behaviour and preference of broiler breeder females. en_US
dc.type Thesis en_US
dc.degree.programme Animal and Poultry Science en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Animal and Poultry Science en_US


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