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Skip to Search Results- 6Dairy cattle
- 4Somatotropin
- 2Growth hormone releasing factor
- 1Animal science
- 1Arginine--Metabolism
- 1Beef cattle--Cow-calf system
- 1Basarab, J. A.
- 1Carreira Bruinjé, Tony
- 1Engelking, Lauren E.
- 1Glimm, David R.
- 1Goonewardene, L. A.
- 1Johnson, Christopher Derek Martin.
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An investigation of endogenous ghrelin and growth hormone-releasing hormone following the consumption of two different relative doses of oral l-arginine
DownloadSpring 2011
Individuals consume the amino acid L-arginine (L-arg) to obtain an anabolic response. However, little is known concerning the mechanism for using an oral dose. The primary purpose of this investigation was to examine the influence of consuming two relative doses of oral L-arg on the growth...
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Improving Accuracy of Genomic Prediction for Economically Important Traits in Canadian Holstein Dairy Cattle
DownloadSpring 2017
Milk is a valuable source of energy, high quality protein, and several key minerals and vitamins for humans. Selection for milk production in dairy cattle was first based on phenotype and pedigree information and the knowledge of genetic parameters for the trait of interest. However, substantial...
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Fall 2023
The calving transition is a challenging period for dairy cows characterized by negative energy balance, metabolic dysfunction, and inflammation, each of which may compromise milk production. Despite extensive research in this area, much is still unknown on how to best manage this period. The...
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Prediction of residual feed intake for first lactation dairy cows using orthogonal polynomial random regression
Download2013
Okine, E. K., Goonewardene, L. A., McFadden, T., Basarab, J. A., Wang, Z., Manafiazar, G., Li, P.
Residual Feed Intake (RFI) is a measure of energy efficiency. Developing an appropriate model to predict expected energy intake while accounting for multifunctional energy requirements of metabolic body weight (MBW), empty body weight (EBW), milk production energy requirements (MPER), and their...
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USING IN-LINE MILK PROGESTERONE DATA TO DETERMINE OVARIAN ACTIVITY PARAMETERS ASSOCIATED WITH REDUCED FERTILITY IN CANADIAN HOLSTEIN COWS
DownloadFall 2017
Improvements in genetic selection and dairy management practices have resulted in dramatic increases in individual milk production over past decades. However, this positive trend has been accompanied by decreased reproductive performance and fertility in dairy cows. Infertility in modern dairy...