R. Berthiaume
Agriculture and Agri-Food Canada
57 Papers
202 Citations
R. Berthiaume is an academic researcher from Agriculture and Agri-Food Canada. The author has contributed to research in topics: Dry matter & Silage. The author has an hindex of 24, co-authored 57 publications.
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Papers
Effects of essential oils on digestion, ruminal fermentation, rumen microbial populations, milk production, and milk composition in dairy cows fed alfalfa silage or corn silage.
TL;DR: Results from this study showed limited effects of MEO supplementation on nutrient utilization, ruminal fermentation, and milk performance when cows were fed diets containing either AS or CS as the sole forage source.
360
Feeding micronized and extruded flaxseed to dairy cows: effects on blood parameters and milk fatty acid composition.
TL;DR: It was concluded that feeding raw or heated flaxseed to dairy cows alters blood and milk fatty acid composition and has negative effects on milk yield and milk composition.
202
The route of absorbed nitrogen into milk protein
Hélène Lapierre,R. Berthiaume,G. Raggio,M.C. Thivierge,L. Doepel,David Pacheco,Pascal Dubreuil,Gerald Lobley +7 more
TL;DR: In this paper, a database of 14 published and unpublished studies (33 treatments) that measured the net flux of nitrogen compounds across the splanchnic tissues in dairy cows was compiled.
138
What is the true supply of amino acids for a dairy cow
Hélène Lapierre,David Pacheco,R. Berthiaume,D.R. Ouellet,C.G. Schwab,Pascal Dubreuil,Grietje Holtrop,Gerald Lobley +7 more
TL;DR: Intermediary metabolism of AA between the duodenum and the mammary gland biologically explains the decreased efficiency of the transfer of absorbed AA into milk protein as maximal yield is approached, and variable factors for transfer efficiencies must be incorporated into future predictive models.
109
Effect of Level of Metabolizable Protein on Splanchnic Flux of Amino Acids in Lactating Dairy Cows
G. Raggio,David Pacheco,R. Berthiaume,Gerald Lobley,Doris Pellerin,Guy Allard,Pascal Dubreuil,Hélène Lapierre +7 more
TL;DR: With increasing MP, the ratio of milk output to postliver supply of BCAA, Thr, and Lys decreased linearly, indicating oxidation of these AA in the peripheral tissues, and the efficiency of transfer of absorbed EAA into milk protein decreases markedly as protein supply increases.
107