T
Tim A. McAllister
Researcher at Agriculture and Agri-Food Canada
Publications - 907
Citations - 37778
Tim A. McAllister is an academic researcher from Agriculture and Agri-Food Canada. The author has contributed to research in topics: Rumen & Silage. The author has an hindex of 85, co-authored 862 publications receiving 32409 citations. Previous affiliations of Tim A. McAllister include University of Alberta & University of Guelph.
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Journal ArticleDOI
Selected antimicrobial resistance during composting of manure from cattle administered sub-therapeutic antimicrobials.
Ranjana Sharma,Francis J. Larney,Jing Chen,L. Jay Yanke,Mark Morrison,Edward Topp,Tim A. McAllister,Zhongtang Yu +7 more
TL;DR: It is found that while compost windrows did not reach the recommended temperature of 55 degrees C for 15 d, composting reduced high initial levels of total, Amp(r), and Tet(r) E. coli as early as Week 2.
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Effects of feeding flaxseed or sunflower-seed in high-forage diets on beef production, quality and fatty acid composition.
Cletos Mapiye,Jennifer L. Aalhus,T.D. Turner,David C. Rolland,John A. Basarab,Vern S. Baron,Tim A. McAllister,H. C. Block,B. Uttaro,Óscar López-Campos,Spencer D. Proctor,Michael E. R. Dugan +11 more
TL;DR: Yearling steers were fed 70:30 forage:concentrate diets for 205 d, with either grass hay or red clover silage as the forage source, and concentrates containing either sunflower-seed (SS) or flaxseed (FS) providing 5.4% oil to diets.
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Relationships between bunk attendance, intake and performance of steers and heifers on varying feeding regimes
TL;DR: Cattle spending more time at the bunk consumed more and gained more quickly and positive relationships were observed between average daily duration of bunk attendance and average DMI, and between average duration of attendance and ADG.
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Effects of increasing concentrations of glycerol in concentrate diets on nutrient digestibility, methane emissions, growth, fatty acid profiles, and carcass traits of lambs.
Jorge Avila-Stagno,Jorge Avila-Stagno,Jorge Avila-Stagno,Alex V. Chaves,M. L. He,Odd Magne Harstad,Karen A. Beauchemin,Sean M. McGinn,Tim A. McAllister +8 more
TL;DR: Glycerol may improve backfat fatty acid profiles by increasing 18:0 and 9c-18:1 and reducing 10t-18-1 and the n-6/n-3 ratio and linearly increased by glycerol.
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Genetic characterization and antimicrobial susceptibility of Mannheimia haemolytica isolated from the nasopharynx of feedlot cattle.
Cassidy L. Klima,Trevor W. Alexander,Ron Read,Sheryl P. Gow,Calvin W. Booker,Sherry J. Hannon,C. Sheedy,Tim A. McAllister,L. B. Selinger +8 more
TL;DR: Clonal spread of isolates throughout the feedlots was limited and no clear association was found between genetic relatedness of M. haemolytica and sampling event (entry or exit), and pulsed-field profiles sharing a common serotype and resistance phenotype tended to cluster together.