Results 51 to 60 of about 1,926,955 (188)
Bias in genetic evaluation using random regression test-day model
Agricultural and Food Science, 2008 The effect of an upgraded Finnish evaluation model on bias in estimated breeding values for protein yield was investigated. Evaluations based on repeatability animal model and on random regression test-day model without and with heterogeneous variance ...
M. LIDAUER, E.A. MÄNTYSAARI
doaj
Journal of Dairy Science: Several studies have indicated that rumination could be used as a metric to monitor dairy cows' performance, condition, and health status. Along with applications in cow management, there may be scope to use rumination data in breeding programs ...
W. Lou +3 more
doaj +1 more source
Czech Journal of Animal Science, 2011 A multiple-lactation random regression model was applied to test-day somatic cell score (SCS) records from the first three lactations of Czech Holstein and Fleckvieh cows.
L. Zavadilová +4 more
doaj +1 more source
Adapting to Unknown Smoothness by Aggregation of Thresholded Wavelet Estimators [PDF]
, 2006 We study the performances of an adaptive procedure based on a convex combination, with data-driven weights, of term-by-term thresholded wavelet estimators. For the bounded regression model, with random uniform design, and the nonparametric density model,
Chesneau, Christophe, Lecué, Guillaume
core +4 more sources
Estimation of the Genetic Parameters for Test-Day Milk, in Teleorman Black Head Sheep
Scientific Papers Animal Science and Biotechnologies, 2023 The objective of this study was to determine the genetic parameters represented by heritability for test-day milk yield and the genetic correlation between test-days milk yield and the breeding value for Teleorman Black Head sheep. The genetic parameters
Rodica Stefania Pelmus +6 more
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Sparsity oracle inequalities for the Lasso
, 2007 This paper studies oracle properties of $\ell_1$-penalized least squares in nonparametric regression setting with random design. We show that the penalized least squares estimator satisfies sparsity oracle inequalities, i.e., bounds in terms of the ...
Bunea, Florentina +2 more
core +1 more source
Random regression models for genetic evaluation of clinical mastitis in dairy cattle
Animal, 2009 A genetic analysis of longitudinal binary clinical mastitis (CM) data recorded on about 90 000 first-lactation Swedish Holstein cows was carried out using linear random regression models (RRM).
E. Carlén +3 more
doaj +1 more source
Random regression models for detection of gene by environment interaction [PDF]
Genetics Selection Evolution, 2007 Abstract Two random regression models, where the effect of a putative QTL was regressed on an environmental gradient, are described. The first model estimates the correlation between intercept and slope of the random regression, while the other model restricts this correlation to 1 or -1, which is expected under a bi-allelic QTL model.
Meuwissen Theo HE +2 more
openaire +4 more sources
Animal, 2007 Covariance components for test day milk yield using 263 390 first lactation records of 32 448 Holstein cows were estimated using random regression animal models by restricted maximum likelihood.
C.M.R. de Melo +3 more
doaj +1 more source
Regression models and random effects [PDF]
Revista do Colégio Brasileiro de Cirurgiões, 2021 openaire +3 more sources