Jan ten Napel

Modeling missing parents in single-step test-day SNP-BLUP evaluation of dairy cattle

This study compares methods for handling missing parental information in genomic breeding value predictions for dairy cattle, finding that grouping missing parents as genetic groups is more robust for ungenotyped individuals in incomplete pedigrees.

Accelerated matrix-vector multiplications for matrices involving genotype covariates with applications in genomic prediction

The paper develops optimized matrix-vector multiplication methods for genomic prediction, improving computational efficiency on GPUs and CPUs for large datasets.

Impact of genomic preselection on subsequent genetic evaluations with ssGBLUP - using real data from pigs

This study evaluates the impact of genomic preselection on accuracy and bias in ssGBLUP genetic evaluations using real pig data, finding minimal effects on accuracy and negligible bias.