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Skip to Search Results- 20Graduate and Postdoctoral Studies (GPS), Faculty of
- 20Graduate and Postdoctoral Studies (GPS), Faculty of /Theses and Dissertations
- 5Roy Berg Kinsella Research Ranch
- 5Roy Berg Kinsella Research Ranch/Journal Articles (Kinsella Ranch)
- 2Agricultural, Food and Nutritional Science, Department of
- 2Agricultural, Food and Nutritional Science, Department of/Journal Articles (Agricultural, Food and Nutritional Science)
- 2Moore, Stephen (Agricultural, Food and Nutritional Science)
- 2Wang, Zhiquan (Agricultural, Food and Nutritional Science)
- 2Wishart, David (Biological Sciences)
- 1An, Henry (Resource Economics and Environmental Sociology)
- 1Basarab, John (Alberta Agriculture and Rural Development)
- 1Bork, Edward (Agricultural, Food, and Nutritional Science)
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Fall 2010
Improving feed efficiency has become a top priority in beef cattle production because of the rapidly increasing cost of feed provision. However, because of the expense associated with collecting individual animal feed intake data, only a relatively small number of animals have been tested,...
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Spring 2021
Approximately 70% of the cost of beef production is impacted by dietary intake. Maximizing production efficiency of beef cattle requires not only genetic selection to maximize feed efficiency (i.e. residual feed intake - RFI), but also adequate nutrition throughout all stages of growth and...
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Application of Multi-Omics Tools to Study the Genetic Background of Economically Relevant Traits in Commercial Beef Production
DownloadSpring 2022
The sustainability and profitability of beef cattle production are largely associated with feed efficiency, carcass merit, and resistance to infectious diseases. These traits are difficult or expensive to measure on individual animals, which makes them suitable for genomic application. Currently...
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Assessment of rumen microbiota in beef heifers with different feed efficiency and managed under different feeding systems
DownloadSpring 2020
The linkage between rumen microbiota and feed efficiency has been studied in cattle managed under the drylot system, especially in the feedlot with high-grain diets. However, pasture-based beef operations still dominate the beef production system around the world. In Alberta and other provinces...
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Fall 2011
Feed efficiency affects profitability and sustainability in beef production systems. Since ruminal microbes play essential roles in feed digestion and conversion, the overall objective of this project was to investigate the association between ruminal bacteria and feed efficiency of beef cattle....
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Characterization and evaluation of residual feed intake measured in mid- to late-gestation mature beef cows and relationships with circulating serum metabolites and linear body measurements
Download2014
Miller, S. P., Swanson, K. C., Wood, K. M., Montanholi, Y. R., Fitzsimmons, C. F, McBride, B. W.
To evaluate the use of residual feed intake (RFI) models measured in mid-to-late gestating beef cows, a dataset was used combining data from five experiments containing nine treatment and/or replicate groups for a total of 321 animal records. Investigations of RFI models included the effects of...
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Contribution of the Rumen Epithelial Transcriptome and Microbial Community to Variation in Beef Cattle Feed Efficiency
DownloadSpring 2016
Feed efficient cattle consume less feed and produce less environmental waste than inefficient cattle. Many factors are known to contribute to differences in feed efficiency. However, it is unknown how the rumen epithelium and its associated microorganisms influence the feed efficiency of cattle....
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Developing a genome-wide selection model for genetic improvement of residual feed intake and carcass merit in a beef cattle breeding program
Download2012
Zeng, ZhiYao, Moore, Stephen S., Lai, SongJia, Plastow, Graham, Tang, GuoQing, Wang, ZhiQuan, Ma, JiDeng, Li, XueWei
Residual feed intake (RFI) and carcass merit (CM) are both complex traits emerging as critical targets for beef genetic improvement. RFI and CM traits are difficult and expensive to measure and genetic improvement for these traits through traditional selection methods is not very effective....
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Spring 2023
Calf morbidity and mortality due to Bovine Respiratory Disease (BRD) is highest in the first two weeks after arrival at the feedlot. Feedlots use antimicrobial drugs (AMDs) to maintain calf health, which contributes to general antimicrobial resistance (AMR). AMR causes externality costs to human...
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Effects of calf- and yearling-fed beef production systems and growth promotants on production and profitability
Download2013
Baron, V. S., López-Campos, O., Aalhus, J. L., Basarab, J. A., Okine, E. K.
In each of 2 yr, 112 spring-born steers were used to evaluate the effect of calf-fed vs. yearling-fed with and without growth implant and β-adrenergic agonist on production parameters and economic potential. Steers were grouped into: (1) non-implanted feeders harvested at 11–14 mo of age, (2)...