Search Results - "Duplessis, M"

Review – State of knowledge on the importance of folates and cobalamin for dairy cow metabolism by Girard, C.L., Duplessis, M.

“…•Folate and cobalamin subclinical deficiency could be present in dairy cows.•Subclinical deficiency reduces milk and milk component yields.•Subclinical…”
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Response to a glucose tolerance test in early-lactation Holstein cows receiving a supplementation of biotin, folic acid, and vitamin B 12 by Duplessis, M, Girard, C L

“…The aim of the study was to evaluate glucose and insulin metabolism of cows receiving a supplementation of biotin (B ), folic acid (B ), and vitamin B (B )…”
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Combined biotin, folic acid, and vitamin B12 supplementation given during the transition period to dairy cows: Part II. Effects on energy balance and fatty acid composition of colostrum and milk by Duplessis, M., Gervais, R., Lapierre, H., Girard, C.L.

“…Biotin (B8), folate (B9), and vitamin B12 (B12) are involved in several metabolic reactions related to energy metabolism. We hypothesized that a low supply of…”
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Combined biotin, folic acid, and vitamin B12 supplementation given during the transition period to dairy cows: Part I. Effects on lactation performance, energy and protein metabolism, and hormones by Duplessis, M., Lapierre, H., Sauerwein, H., Girard, C.L.

“…Biotin (B8), folates (B9), and vitamin B12 (B12) are involved and interrelated in several metabolic reactions related to energy and protein metabolism. We…”
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Day-to-day variation in trace and macro-mineral concentrations in corn and mixed grass–legume silages of Canadian commercial dairy herds by Duplessis, M., Dubois, K., Royer, I.

“…The aims were to assess the day-to-day variation in trace minerals (TM), macro-minerals, dry matter, and physical effectiveness factor in grass–legume and corn…”
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Prevalence of elevated milk β-hydroxybutyrate concentrations in Holstein cows measured by Fourier-transform infrared analysis in Dairy Herd Improvement milk samples and association with milk yield and components by Santschi, D E, Lacroix, R, Durocher, J, Duplessis, M, Moore, R K, Lefebvre, D M

“…The purpose was to describe the prevalence and effect of elevated milk β-hydroxybutyrate (BHB) as detected by routine Fourier-transform infrared analysis in…”
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Effects of intramuscular injections of folic acid, vitamin B 12 , or both, on lactational performance and energy status of multiparous dairy cows by Duplessis, M, Lapierre, H, Pellerin, D, Laforest, J-P, Girard, C L

“…The purpose of this experiment was to gain understanding on changes in energy partitioning when folic acid and vitamin B supplements, alone or combined, were…”
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Impact of diet management and composition on vitamin B12 concentration in milk of Holstein cows by Duplessis, M., Pellerin, D., Robichaud, R., Fadul-Pacheco, L., Girard, C. L.

“…As vitamin B12 is only synthesized by bacteria, ruminant products, especially dairy products, are excellent sources of this vitamin. This study aims to…”
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Short communication: Factors affecting vitamin B12 concentration in milk of commercial dairy herds: An exploratory study by Duplessis, M, Pellerin, D, Cue, R I, Girard, C L

“…Only bacteria can synthesize vitamin B12, and this requires adequate Co supply. The natural source of vitamin B12 in human diets comes from animal products,…”
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Dry period plane of energy: Effects on glucose tolerance in transition dairy cows by Mann, S, Leal Yepes, F A, Duplessis, M, Wakshlag, J J, Overton, T R, Cummings, B P, Nydam, D V

“…Overfeeding energy in the dry period can affect glucose metabolism and the energy balance of transition dairy cows with potential detrimental effects on the…”
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Short communication: Relationships among plasma and milk vitamin B 12 , plasma free fatty acids, and blood β-hydroxybutyrate concentrations in early lactation dairy cows by Duplessis, M, Cue, R I, Santschi, D E, Lefebvre, D M, Girard, C L

“…This study was undertaken to evaluate the relationship between plasma and milk concentrations of vitamin B as well as the relationship between plasma or milk…”
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Short communication: Potential prediction of vitamin B 12 concentration based on mid-infrared spectral data using Holstein Dairy Herd Improvement milk samples by Duplessis, M, Pellerin, D, Girard, C L, Santschi, D E, Soyeurt, H

“…The purpose of this study was (1) to predict the quantitative concentration of vitamin B in milk using mid-infrared (MIR) spectrometry, and (2) to evaluate the…”
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Whole-body propionate and glucose metabolism of multiparous dairy cows receiving folic acid and vitamin B 12 supplements by Duplessis, M, Lapierre, H, Ouattara, B, Bissonnette, N, Pellerin, D, Laforest, J-P, Girard, C L

“…This study was undertaken to evaluate the effect of supplementation of folic acid and vitamin B on glucose and propionate metabolism. Twenty-four multiparous…”
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Nitrogen efficiency of eastern Canadian dairy herds: Effect on production performance and farm profitability by Fadul-Pacheco, L, Pellerin, D, Chouinard, P Y, Wattiaux, M A, Duplessis, M, Charbonneau, É

“…Nitrogen efficiency (milk N/dietary N; NE) can be used as a tool for the nutritional, economic, and environmental management of dairy farms. The aim of this…”
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Weight, height, and relative-reliability indicators as a management tool for reducing age at first breeding and calving of dairy heifers by Duplessis, M, Cue, R I, Santschi, D E, Lefebvre, D M, Lacroix, R

“…In Québec first calving occurs on average at 27 mo, whereas the target is 23 to 24.5 mo to maximize herd profitability. The aim of this study was to quantify…”
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Short communication: Folates and vitamin B12 in colostrum and milk from dairy cows fed different energy levels during the dry period by Duplessis, M, Mann, S, Nydam, D V, Girard, C L, Pellerin, D, Overton, T R

“…This study was undertaken to evaluate folate and vitamin B12 concentrations of colostrum and milk in early lactation of dairy cows fed different levels of…”
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Assessment of the Canadian model predicting daily milk yield and milk fat percentage using single-milking dairy herd improvement samples by Duplessis, M., Lacroix, R., Fadul-Pacheco, L., Lefebvre, D.M., Pellerin, D.

“…The use of adjustment factors with alternate morning (AM) and evening (PM) milk tests to predict daily milk yield and fat percentage from single milking could…”
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The incidence and significance of anti-natalizumab antibodies : Results from AFFIRM and SENTINEL by CALABRESI, P. A, GIOVANNONI, G, POLMAN, C. H, RADUE, E.-W, RUDICK, R. A, STUART, W. H, LUBLIN, F. D, WAJGT, A, WEINSTOCK-GUTTMAN, B, WYNN, D. R, LYNN, F, PANZARA, M. A, CONFAVREUX, C, GALETTA, S. L, HAVRDOVA, E, HUTCHINSON, M, KAPPOS, L, MILLER, D. H, O'CONNOR, P. W, PHILLIPS, J. T

“…To determine the incidence and clinical effects of antibodies that develop during treatment with natalizumab. In two randomized, double-blind,…”
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Effects of folic acid and vitamin B12 supplementation on culling rate, diseases, and reproduction in commercial dairy herds by Duplessis, M, Girard, C L, Santschi, D E, Laforest, J-P, Durocher, J, Pellerin, D

“…This study was undertaken to determine the effect of a combined folic acid and vitamin B12 supplement given in early lactation on culling rate, metabolic…”
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Performance perception of Canadian dairy producers when transitioning to an automatic milking system by Duplessis, M., Vasseur, E., Ferland, J., Pajor, E.A., DeVries, T.J., Pellerin, D.

“…[Display omitted] •This study focused on producer perception after adoption of an automated milking system.•A total of 39.4% of dairy producers accurately…”
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