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2014
Sargolzaei, M., Li, C., Schenkel, F., Chen, L.
Background Genomic prediction in multiple populations can be viewed as a multi-task learning problem where tasks are to derive prediction equations for each population and multi-task learning property can be improved by sharing information across populations. The goal of this study was to...
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Multilocus sequence typing analysis of Clostridium perfringens isolates from necrotic enteritis outbreaks in broiler chickens
Download2008
Jiang, Y. F., Hunter, D. B., Parreira, V. R., Bruce, H. L., Kulkarni, R. R., Prescott, J. F., Chalmers, G., Boerlin, P.
Clostridium perfringens is an important pathogen of animals and humans and is the causative agent of necrotic enteritis (NE) in poultry. This study focuses on the typing of intestinal C. perfringens isolates (n 61) from outbreaks of NE collected from several areas of Southern Ontario, using a...
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Necrotic enteritis potential in a model system using Clostridium perfringens isolated from field outbreaks
Download2007
Toole, D. L., , Barnum, D. A., Bruce, H. L., Boerlin, P., Chalmers, G.
Necrotic enteritis is an enteric disease of avian species caused by the anaerobic bacterium Clostridium perfringens. The disease is regularly controlled in the broiler chicken industry through the use of antimicrobials in feed, but is re-emerging in areas such as Europe where there is a ban on...
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1981
Thirty-five non-pregnant beef cows in three age classes (< 4 yr, 4–5 yr, and > 5 yr) were allocated at random to two treatments (fed, unfed) soon after weaning in November 1978. On day 1, the unfed group of 17 cows were marketed and the fed group of 18 cows were introduced to grain feeding. After...
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2011
Wang, Z., MacNeil, J. D., Stewart-Smith, J., Tang, G., Basarab, J. A., Moore, S. S., Plastow, G.
Crossbreeding is an effective method for improving the efficiency of production in commercial cow-calf operations. It exploits available heterosis (hybrid vigour) and complementarity between different breeds or populations (lines). Before adopting a crossbreeding system, commercial cattle...
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1979
Price, M. A., Berg, R. T., Butterfield, R. M., Hardin, R. T., Jones, S. D. M., Fukuhara, R.
Seventy-five young, full-fed, Shorthorn-sired cattle (36 heifers, 24 steers, 15 bulls) were slaughtered over a wide liveweight range (150-550 kg) to evaluate the influence of sex on the patterns of fat deposition.
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Patterns of muscle, bone and fat accretion in three biological types of feedlot bulls on three dietary energy levels
Download1985
Patterson, D. L., Price, M. A., Berg, R. T.
The data used in this study consisted of 119 075 complete lactation records accumulated by record of performance (ROP) from 1976 to 1981. Each individual record consisted of 7, 8 or 9 monthly test day milk weights and corresponding fat percentage. The data for each breed (Ayrshire, Guernsey,...
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Phenotypic correlations of fatty acid composition among intramuscular, subcutaneous and intermuscular fat tissues in concentrate-fed beef cattle of differing genotypes
Download2009
Wang, Z., Aldai, N., Osoro, K., Dugan, M. E. R., Crews Jr, D. H., Li, C.
In an attempt to predict intramuscular fatty acid composition using easily accessible fat depots, between-tissue correlations were studied in 75 Asturiana de los Valles bulls with different levels of muscular hypertrophy, and 25 Asturiana de la Montaña bulls. Trans-18:1 in intramuscular fat was...
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Plant Phenotypic Plasticity Belowground: A Phylogenetic Perspective on Root Foraging Trade‐Offs
Download2005
Cahill Jr, J. F., Kembel, S. W.
Many plants proliferate roots in nutrient patches, presumably increasing nutrient uptake and plant fitness. Nutrient heterogeneity has been hypothesized to maintain community diversity because of a trade‐off between the spatial extent over which plants forage (foraging scale) and their ability to...
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2009-01-01
McNickle, G. G., Cahill jr, J. F.
All organisms must find and consume resources to live, and the strategies an organism uses when foraging can have significant impacts on their fitness. Models assuming optimality in foraging behavior, and which quantitatively account for the costs, benefits, and biological constraints of...