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Effect of nursery feeding program on wean-to-finish growth performance, growth-related plasma hormone levels, chemical body composition and carcass traits of pigs

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dc.contributor.advisor de Lange, C.F.M.
dc.contributor.author Skinner, L Donald
dc.date.accessioned 2013-01-07T20:29:21Z
dc.date.available 2013-01-07T20:29:21Z
dc.date.copyright 2012-12
dc.date.created 2012-12-19
dc.date.issued 2013-01-07
dc.identifier.uri http://hdl.handle.net/10214/5248
dc.description.abstract Experiments were conducted to assess effects of nursery feeding programs (using complex or simple diets, including or excluding antibiotics) on growth performance of barrows and gilts up to market weight (approximately 115 kg body weight), plasma levels of growth-related hormones, chemical body composition and carcass traits at market weight. Reducing nursery diet complexity decreased (P < 0.05) growth performance and plasma levels of triiodothyronine during the nursery period, but had no negative carry-over effects on growth performance or hormone plasma levels thereafter. Excluding antibiotics from nursery diets reduced nursery growth performance and plasma levels of insulin-like growth factor-1 and triiodothyronine but appeared to induce subsequent compensatory growth. In general, nursery feeding programs had no effect on body composition and carcass traits at market weight and no effect on wean-to-finish growth performance or carcass value at market weight. This represents an opportunity to improve profitability in commercial pork production. en_US
dc.description.sponsorship Ontario Pork; The Ontario Ministry of Agriculture, Food and Rural Affairs; Canadian Agriculture and Agri-Food Swine Research Cluster en_US
dc.language.iso en en_US
dc.subject compensatory growth en_US
dc.subject diet complexity en_US
dc.subject growth performance en_US
dc.subject nursery en_US
dc.subject pigs en_US
dc.subject antibiotics en_US
dc.subject hormone en_US
dc.subject bio-marker en_US
dc.subject meat quality en_US
dc.subject body composition en_US
dc.subject carcass composition en_US
dc.title Effect of nursery feeding program on wean-to-finish growth performance, growth-related plasma hormone levels, chemical body composition and carcass traits of pigs 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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