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Skip to Search Results- 1Frias Luna, Aggar A
- 1Harland, Alexandra J.
- 1Li, Wentao
- 1Londono Mendez, Maria Camila
- 1Moore, Carly
- 1Olson, Cameron A
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Spring 2021
The dairy industry in Canada has undergone huge changes in the last few decades. While the average annual milk production per cow grew over three times by 2015 (average rose to 8.65 Hectolitres per and reached 9.5 Hectolitres in 2018) from 1995 levels (2.5 Hectolitres a year per cow on average),...
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An Examination of Virtual Fencing as a Tool to Manage Beef Heifers and Cow-calf Pairs in Western Canada
DownloadFall 2024
This study encompasses the evaluation of Nofence virtual fencing (VF) technology for managing grazing cattle in western Canada, addressing both technical performance and animal behavior. Two key investigations were conducted: one focusing on the technical efficacy of VF collars during summer and...
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Fall 2022
Maintaining the health of feedlot beef cattle is essential because diseases are directly associated with economic losses and animal welfare. Lameness is an important health issue in feedlot cattle. However, the molecular mechanisms behind cattle lameness have not been well studied. Moreover,...
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Spring 2022
Reproductive efficiency in the Western Canadian beef cow herd has not improved over the past 3 decades, despite consistent and measurable improvement in several related areas of production. The general objective of this thesis was to evaluate the relationships between early-observation traits...
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Long-term grazing effects on soil greenhouse gases emission and soil microbial communities of Alberta grasslands
DownloadFall 2018
Grasslands cover a large area of the terrestrial surface and their soils store vast amounts of carbon (C) and nitrogen (N). Small changes in the processes driving C and N cycling can lead to either sequestration of these elements or their release as greenhouse gases (GHG) into the atmosphere....
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Rangeland Habitat Use and Activity of Cattle with Divergent Molecular Breeding Values for Residual Feed Intake
DownloadSpring 2018
Selection for the trait residual feed intake (RFI) is an emerging tool for cattle producers to manage feed costs within the beef industry. This study explored whether cattle habitat use and activity on extensive pasture-based systems in the dry mixedgrass of Alberta differed between cattle with...
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Fall 2021
Recent advances in genomics have revolutionized selective breeding in many agriculturally important animal species such as dairy cattle, poultry, and pork. However, the adoption of genomic selection in the beef industry has been slower for reasons such as the existence of multiple breeds, the...
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The use of modern metabolomics and proteomics to address the health challenges facing the Canadian cattle industry
DownloadFall 2013
Naturally cattle only consumed grass, hay and other forage crops but modern cattle industry has started shifting them from a natural grazing diet to a more balanced grain-rich diet. However, feeding dairy cows grain rich diet is associated with a rapid release of large amounts of SCFA that have...
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Fall 2024
The beef industry seeks sustainability through improved feed efficiency, yet the interaction between residual feed intake (RFI) and weather resilience in grazing beef heifers remains underexplored. This thesis evaluated rumen temperature (RT), blood parameters, growth performance, and activity...