Alternative Somatic Cell Count Traits as Mastitis Indicators for Genetic Selection (2008)
The aim of this study was to define alternative traits of somatic cell count (SCC) that can be used to decrease genetic susceptibility to clinical and subclinical mastitis (CM and SCM, respectively)....
A new udder health index for better breeding against mastitis (2008)
Windig, J.J., Ouweltjes, W., Veerkamp, R.F., Sampimon, O.C., ...
Lam, T., Ouweltjes, W., Sampimon, O.C., ...
Gizaw, S., Komen, H., Windig, J.J., Hanotte, O.
Prioritizing livestock breeds for conservation needs to incorporate both genetic and non-genetic aspects important for the survival of the breeds. Here, we apply a maximum-utility-strategy to...
Beerda, B., Ouweltjes, W., Sebek, L.B.J., Windig, J.J., Veerkamp, R.F.
Increases in genetic merit for milk yield are associated with increases in mobilization of body reserves. This study assessed the effects of genotype by environment (GxE) interactions on milk yield...
Effects of Management and Genetics on Udder Health and Milk Composition in Dairy Cows (2007)
Ouweltjes, W., Beerda, B., Windig, J.J., Calus, M.P.L., Veerkamp, R.F.
Milk production per cow has increased significantly as a result of breeding, feeding, and other management factors. This study aims to address concerns about udder health risks for low- and...
Gizaw, S., Komen, J., Windig, J.J., Hanotte, O.
We investigated genetic and morphological diversity and population structure of 14 traditional sheep populations originating from four ecological zones in Ethiopia (sub-alpine, wet highland,...
Scrapie is a fatal infectious neurodegenerative disease for which susceptibility is associated with polymorphisms in the ovine prion protein (PrP) gene. Scrapie-eradication programmes are based on...
Inteelt, verwantschappen en consequenties (2007)
Het is belangrijk om de oude Nederlandse runderrassen in stand te houden. Ze zijn niet alleen mooi en onderdeel van ons cultureel erfgoed, maar zijn ook het unieke product van jarenlange fokkerij...
Oliehoek, P.A., Windig, J.J., Bijma, P.
Relatedness estimators are widely used in genetic studies, but effects of population structure on performance of estimators, criteria to evaluate estimators, and benefits of using such estimators in...
Indicators to monitor livestock genetic diversity (2006)
Hiemstra, S.J., Eaton, D., Trach, N.X., Hao, P.X., Doan, B.H., Windig, J.J.
Indicators for livestock and crop biodiversity (2006)
Eaton, D.J.F., Windig, J.J., Hiemstra, S.J., Trach, N.X., Hao, P.X., ...
Windig, J.J., Calus, M.P.L., Beerda, B., Veerkamp, R.F.
High milk production in dairy cattle can have negative side effects on health and fertility traits. This paper explores the genetic relationship of milk yield with health and fertility depending on...
Windig, J.J., Calus, M.P.L., Veerkamp, R.F.
High levels of milk production in dairy cattle can have negative side effects on health and fertility traits. This paper explores the relationships among milk yield, health, and fertility traits both...
Calus, M.P.L., Windig, J.J., Veerkamp, R.F.
The objective of this paper was to investigate the association of descriptors of herd environment with phenotypic levels and breeding values of fertility and health traits. Analyses were performed...
Nylin, S., Nygren, G. H., Windig, J.J., Janz, N., Bergstrom, A.
In the Lepidoptera, sex-linked genes have been found to be of importance for species differences in, for example, hostplant preference, and have been implicated in ecological speciation. Variation...
The association between somatic cell count patterns and milk production prior to mastitis (2005)
Windig, J.J., Calus, M.P.L., Jong De, Gerben, Veerkamp, R.F.
Association between milk yield, milk composition and patterns of peak in Somatic Cell Counts (SCC) were analysed in 4006 Dutch herds with 1 962 752 lactations. Definitions of peak patterns were based...
Rapid haplotype reconstruction in predigrees with dense marker maps (2004)
Windig, J.J., Meuwissen, T.H.E.
Reconstruction of marker phases is not straightforward when parents are untyped. In these cases information from other relatives has to be used. In dense marker maps, however, the space of possible...
Windig, J.J., Veerkamp, R.F., Nylin, S.
Evidence of changes in levels of genetic variation in the field is scarce. Theoretically, selection and a bottleneck may lead to the depletion of additive genetic variance (VA) but not of...
Precision of methods for calculating identity-by-descent matrices using multiple markers (2002)
Sorensen, A.C., Pong Wong, R., Windig, J.J., Woolliams, J.A.
A rapid, deterministic method (DET) based on a recursive algorithm and a stochastic method based on Markov Chain Monte Carlo (MCMC) for calculating identity-by-descent (IBD) matrices conditional on...
Fluctuating asymmetry (FA), small random differences between left and right, has been extensively used as a measure of individual quality, though its usefulness in that respect is controversial....
Adaptive wing asymmetry in males of the speckled wood butterfly (Pararge aegeria)?
We analysed asymmetry in the wings of the speckled wood butterfly (Pararge aegeria)by measuring area, length and width of fore- and hindwings. The type of asymmetry is fluctuating except for fore-...