Search Results - "Lefebvre, D M"

Genetic analysis of milk urea nitrogen and lactose and their relationships with other production traits in Canadian Holstein cattle by Miglior, F, Sewalem, A, Jamrozik, J, Bohmanova, J, Lefebvre, D M, Moore, R K

“…The objective of this research was to estimate heritabilities of milk urea nitrogen (MUN) and lactose in the first 3 parities and their genetic relationships…”
Get more information

Complete-lactation milk and component yields following a short (35-d) or a conventional (60-d) dry period management strategy in commercial Holstein herds by Santschi, D E, Lefebvre, D M, Cue, R I, Girard, C L, Pellerin, D

“…A total of 850 cows distributed among 13 commercial Holstein herds were involved in this study to compare the effects of 2 different dry period (DP) management…”
Get more information

Incidence of metabolic disorders and reproductive performance following a short (35-d) or conventional (60-d) dry period management in commercial Holstein herds by Santschi, D E, Lefebvre, D M, Cue, R I, Girard, C L, Pellerin, D

“…A total of 850 Holstein cows from 13 commercial dairy herds were involved in the present study to compare the effects of 2 different dry period (DP) management…”
Get more information

Analysis of milk urea nitrogen and lactose and their effect on longevity in Canadian dairy cattle by Miglior, F, Sewalem, A, Jamrozik, J, Lefebvre, D M, Moore, R K

“…The aim of this study was to assess the phenotypic level of lactose and milk urea nitrogen concentration (MUN) and the association of these traits with…”
Get more information

Economic effect of short (35-d) compared with conventional (60-d) dry period management in commercial Canadian Holstein herds by Santschi, D E, Lefebvre, D M, Cue, R I, Girard, C L, Pellerin, D

“…The Canadian dairy industry operates under a supply management system with production quotas (expressed in kilograms of butterfat per day) owned by dairy…”
Get more information

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…”
Get more information

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…”
Get more information

Genetic analysis of milk β-hydroxybutyrate and its association with fat-to-protein ratio, body condition score, clinical ketosis, and displaced abomasum in early first lactation of Canadian Holsteins by Koeck, A, Jamrozik, J, Schenkel, F S, Moore, R K, Lefebvre, D M, Kelton, D F, Miglior, F

“…The aim of this study was to estimate genetic parameters for milk β-hydroxybutyrate (BHBA) in early first lactation of Canadian Holstein cows and to examine…”
Get more information

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…”
Get full text

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…”
Get more information

On the Cusp of Contact: Gender, Space and Race in the Colonization of British Columbia by Lefebvre, Caroline

Get full text

Effect of recombinant bovine somatotropin on estradiol-induced estrous behavior in ovariectomized heifers by Lefebvre, D M, Block, E

“…To evaluate whether bST administration could affect the intensity of estrous behavior in the absence of the ovary, 17 ovariectomized heifers were assigned to…”
Get more information

Review: Practical concepts on short dry period management by Santschi, D. E., Lefebvre, D. M.

Get full text

Impacts of early lactation hyperketonemia on reproduction and 305-d milk production by Santschi, D E, Lacroix, R, Moore, R K, Miglior, F, Lefebvre, D M

“…Hyperketonemia is a common early lactation disorder. Analysis of β-hydroxybutyrate (BHBA) by Fourier transform infrared spectroscopy in DHI milk samples…”
Get full text

Prediction of daily concentration of milk and milk components from single-milking values by Duplessis, M, Fadul-Pacheco, L, Lacroix, R, Lefebvre, D M, Santschi, D E, Pellerin, D

“…Alternate a.m.-p.m. milk testing has been introduced in many countries and is often used instead of collecting milk for 2 consecutive milkings. Models taking…”
Get full text

1267 Impacts of early lactation hyperketonemia on reproduction and 305-d milk production by Santschi, D. E., Lacroix, R., Moore, R. K., Miglior, F., Lefebvre, D. M.

Get full text

1238 Prediction of daily concentration of milk and milk components from single-milking values by Duplessis, M., Fadul-Pacheco, L., Lacroix, R., Lefebvre, D. M., Santschi, D. E., Pellerin, D.

Get full text

Milk production and composition, and body measurements of dairy cows receiving intramuscular injections of folic acid and vitamin B-12 in commercial dairy herds by Duplessis, M., Girard, C.L., Santschi, D.E., Lefebvre, D.M., Pellerin, D.

“…The purpose of this study was to measure the effects of a supplementation in folic acid and vitamin B-12 given before calving and in early lactation on milk…”
Get full text

Review: Practical concepts on short dry period management by Santschi, D. E., Lefebvre, D. M.

“…Santschi, D. E. and Lefebvre, D. M. 2014. Review: Practical concepts on short dry period management. Can. J. Anim. Sci. 94: 381-390. Increased production of…”
Get full text

0398 Genetic associations between milk β-hydroxybutyrate and fatty acids in early first lactation of Canadian Holsteins by Koeck, A., Jamrozik, J., Fleming, A., Schenkel, F. S., Moore, R. K., Lefebvre, D. M., Kelton, D. F., Miglior, F.

Get full text