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Skip to Search Results- 1Boaitey,Albert
- 1Durunna, Obioha Nnamdi
- 1Ferreira Marques, Elisa
- 1Girard, Isabelle
- 1Goldansaz, Seyed Ali
- 1Hashemiranjbar Sharifabad, Mohsen
- 2Moore, Stephen (Agricultural, Food and Nutritional Science)
- 2Wang, Zhiquan (Agricultural, Food and Nutritional Science)
- 1Alexander, Trevor (AAFC)
- 1Basarab, John (Alberta Agriculture and Rural Development)
- 1Bork, Edward (Agricultural, Food, and Nutritional Science)
- 1Bruce, Heather. L. (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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Application of genomics-based tools leading to the identification of markers on bovine chromosome 14 influencing milk production and carcass quality traits
DownloadFall 2009
Genetic improvements in beef and dairy cattle can bring significant advances in satisfying the global food demand, which is expected to double by 2050. Several DNA markers have been identified on bovine chromosome 14 (BTA14), but low mapping resolution prevents their refinement for identification...
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Application of manure from cattle fed with different diets affects soil properties and greenhouse gas emissions
DownloadSpring 2019
Cattle production contributes the largest portion of livestock agricultural greenhouse gas (GHG) emissions in Canada mostly in the form of methane (CH4). Efforts to reduce CH4 emissions have led to modification of diet composition for livestock, resulting in a corresponding change in manure...
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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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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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Effects of Selection for Low Residual Feed Intake on Meat Quality of Major Muscles from Angus, Charolais and Kinsella Composite Cattle
DownloadFall 2017
Residual feed intake (RFI) is a measure of animal feeding efficiency. Selection of high feed efficient cattle using RFI does not affect production performance; low RFI animals consume less feed to reach a similar body weight gain as high RFI animals and thus are considered as feed efficient...
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Spring 2021
Hashemiranjbar Sharifabad, Mohsen
Feed represents more than half of the costs of livestock production. Residual feed intake (RFI) is a phenotypic measure of feed efficiency that has been proposed as the best approach for genetic improvement of dairy cows. Although RFI is considered as a useful tool for feed efficiency, the...
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Genetics of feed efficiency and feeding behavior in crossbred beef steers with emphasis on genotype-by-environment interactions
DownloadFall 2011
This study examined whether crossbred steers had different production, feed efficiency and feeding behavior performances when they were fed a grower or finisher diet or both, in successive feeding periods. Major feed efficiency traits were residual feed intake (RFI) and gain to feed ratio (G:F)...
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Identification of functional genes for feed efficiency traits via transcriptome analyses to enhance the genomic prediction accuracy in beef cattle
DownloadFall 2019
Residual feed intake (RFI), a measure of feed efficiency, and its component traits including average daily gain (ADG), dry matter intake (DMI) and metabolic weight (MWT) are traits of great economic importance to the beef industry. The genetic improvement of these traits can improve the...