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THE EFFECTS OF BIODENSITY ON THE WELFARE AND PRODUCTION PERFORMANCE OF ARCTIC CHARR (SALVELINUS ALPLINUS) IN FRESHWATER

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dc.contributor.advisor Moccia, Richard
dc.contributor.author Sevier, Andrew
dc.date.accessioned 2018-09-05T19:30:28Z
dc.date.available 2018-09-05T19:30:28Z
dc.date.copyright 2018-08
dc.date.created 2018-08-21
dc.date.issued 2018-09-05
dc.identifier.uri http://hdl.handle.net/10214/14256
dc.description.abstract Biodensity is a major factor affecting the production and welfare of farmed fishes. Arctic charr (Salvelinus alpinus) were held at biodensities of 30, 60, 90, 120, and 150 kg/m3 during a 91 day study. Biodensity was found to have no significant effect on mortality, wet mass, fork length, condition factor, HSI, VSI, eviscerated carcass mass or fin damage, or on white muscle protein synthesis. Growth rates were lower in charr reared at high biodensities (120, and 150 kg/m3), and feed efficiency was negatively affected at both the highest (120, and 150 kg/m3) and lowest (30 kg/m3) biodensities. Muscle protein content was lowest in charr reared at 90 kg/m3. Plasma cortisol indicated that Arctic charr are more stressed at lower biodensities, but was not correlated with growth or feed efficiency. The results support an optimal biodensity range for charr culture between 60 and 90 kg/m3 to optimize production and welfare. en_US
dc.description.sponsorship Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) en_US
dc.language.iso en en_US
dc.subject aquaculture arctic charr biodensity stocking welfare production feeding growth morphology physiology stress en_US
dc.subject aquaculture arctic charr biodensity stocking welfare production feeding growth morphology physiology stress en_US
dc.title THE EFFECTS OF BIODENSITY ON THE WELFARE AND PRODUCTION PERFORMANCE OF ARCTIC CHARR (SALVELINUS ALPLINUS) IN FRESHWATER 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 Biosciences en_US


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