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Impact of Nutritional Management Regimen and Residual Feed Intake on Cow Performance during Mid to Late Gestation and Pre-weaning Calf Performance

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dc.contributor.advisor Mandell, Ira
dc.contributor.author Spence, Katelyn
dc.date.accessioned 2017-09-06T14:17:58Z
dc.date.available 2017-09-06T14:17:58Z
dc.date.copyright 2017-08
dc.date.created 2017-07-07
dc.date.issued 2017-09-06
dc.identifier.uri http://hdl.handle.net/10214/11527
dc.description.abstract This study examined the impact of strategic supplementation of straw-based diets with an energy-protein supplement and previously established residual feed intake (RFI) classification on beef cow performance (body weight, condition, feed intake, reproductive performance) in mid to late gestation and pre-weaning calf performance. Nutritional management regimens included nutrient adequate and deficient diets, along with examining frequency of supplementation to correct nutrient deficient diets. RFI classification was used to measure feed efficiency. RFI classification changes between years, and second and third trimesters were evaluated to establish influence of nutritional management regimen. Blood parameters were evaluated to assess effects of strategic supplementation in late gestation. The overall objective of the study was to evaluate how supplementation of low quality feed stuffs affects cow performance. The overall goal was to reduce the cost of production in beef cow-calf operations, with the use of more feed efficient cows and low quality feed stuffs. en_US
dc.description.sponsorship NSERC, Beef Farmers of Ontario, OMAFRA en_US
dc.language.iso en en_US
dc.subject RFI en_US
dc.subject Gestation en_US
dc.subject Beef Cattle en_US
dc.subject Low-quality Diets en_US
dc.title Impact of Nutritional Management Regimen and Residual Feed Intake on Cow Performance during Mid to Late Gestation and Pre-weaning Calf Performance 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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