K
Karen A. Beauchemin
Researcher at Agriculture and Agri-Food Canada
Publications - 445
Citations - 25579
Karen A. Beauchemin is an academic researcher from Agriculture and Agri-Food Canada. The author has contributed to research in topics: Silage & Rumen. The author has an hindex of 83, co-authored 423 publications receiving 22351 citations. Previous affiliations of Karen A. Beauchemin include University of Guelph.
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Journal ArticleDOI
Effect of fibrolytic enzymes added to a Andropogon gayanus grass silage-concentrate diet on rumen fermentation in batch cultures and the artificial rumen (Rusitec).
G. O. Ribeiro,Lúcio Carlos Gonçalves,Luiz Gustavo Ribeiro Pereira,Alexandre V. Chaves,Yanan Wang,Karen A. Beauchemin,Tim A. McAllister +6 more
TL;DR: In vitro batch cultures were used to screen four fibrolytic enzyme mixtures at two dosages added to a 60 : 40 silage : concentrate diet containing the C(4) tropical grass Andropogon gayanus grass ensiled at two maturities - vegetative stage (VS) and flowering stage (FS) as mentioned in this paper.
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Effects of maternal protein or energy restriction during late gestation on antioxidant status of plasma and immune tissues in postnatal goats.
Zhixiong He,Zhihong Sun,Zhiliang Tan,S. X. Tang,Chuanshe Zhou,X. F. Han,M. Wang,D. Q. Wu,J. H. Kang,Karen A. Beauchemin +9 more
TL;DR: It is indicated that maternal protein or energy restriction can decrease the antioxidant capacity of the neonatal kids and result in an imbalance of SOD and hydrogen peroxide-inactivating systems in thymus, even after 6 or 22 wk of nutritional recovery.
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New recombinant fibrolytic enzymes for improved in vitro ruminal fiber degradability of barley straw1.
Gabriel O Ribeiro,Ajay Badhan,Jiangli Huang,Karen A. Beauchemin,Wenzhu Yang,Yuxi Wang,Adrian Tsang,Tim A. McAllister +7 more
TL;DR: The enzymes selected based on the high-throughput in vitro microassay consistently increased barley straw degradation in ruminal batch culture, but not in the semicontinuous culture RUSITEC system.
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Digestibility and growth performance of sheep fed alfalfa hay treated with fibrolytic enzymes and a ferulic acid esterase producing bacterial additive
TL;DR: In this article, the effects of fibrolytic enzymes applied at baling, with or without ferulic acid esterase (FAE) producing bacterial inoculant, or to hay at feeding on digestibility and growth performance of lambs were investigated.
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Inhibition of ruminant feed enzyme polysaccharidase activities by extracts from silages
TL;DR: Extracts from 14 barley silages inhibited endo-1, 4-β-xylanase and α-amylase activities of a ruminant feed enzyme additive from Trichoderma longibrachiatum by 23 to 50% but had little effect on cellulase activity.