R
Roel F. Veerkamp
Researcher at Wageningen University and Research Centre
Publications - 374
Citations - 14026
Roel F. Veerkamp is an academic researcher from Wageningen University and Research Centre. The author has contributed to research in topics: Dairy cattle & Population. The author has an hindex of 60, co-authored 345 publications receiving 12341 citations. Previous affiliations of Roel F. Veerkamp include Norwegian University of Life Sciences & Scottish Agricultural College.
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Estimation of prediction error variances via Monte Carlo sampling methods using different formulations of the prediction error variance
John M. Hickey,Roel F. Veerkamp,Mario P. L. Calus,Han A. Mulder,Robin Thompson,Robin Thompson +5 more
TL;DR: The objective of this study was to compare the convergence rate of different formulations of the prediction error variance calculated using Monte Carlo sampling and it was shown that different formulations had different convergence rates and these were shown to depend on the number of samples and on the level of Prediction error variance.
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Genetic parameters for social effects on survival in cannibalistic layers: Combining survival analysis and a linear animal model
TL;DR: It can be concluded that 2STEP can be used to estimate genetic parameters for direct and associative effects on survival time in laying hens, and selection based on both direct and Associative genetic effects, using either 2STEP or LAM gave the best prediction of survival time.
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Genetic associations for pathogen-specific clinical mastitis and patterns of peaks in somatic cell count
TL;DR: Genetic associations were estimated between pathogen-specific cases of clinical mastitis, lactational average somatic cell score (LACSCS), and patterns of peaks in somaticcell count (SCC) which were based on deviations from the typical lactation curve for SCC.
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The economic performance of dairy cows of different predicted genetic merit for milk solids production
TL;DR: It was concluded that selection on PI for kg fat plus protein is likely to lead to increased margin over food, health and reproduction costs.