ASReml estimates variance components under a general linear mixed model by residual maximum likelihood (REML) The authors gratefully acknowledge the Grains Research and Development Corporation of Australia for their financial support. We thank the Qld Department of Primary Industries & Fisheries and the NSW Department of Primary Industries for permitting this research to be undertaken and for p...

The dlmap package represents the implementation of the DLMapping algorithm as described in [2]. DLMapping is a novel method of QTL mapping in a mixed model framework with separate detection and localization stages. The following vignette documents its usage through examples based on the datasets included in the package. The mixed model framework of the algorithm requires supplementary packages ...

Animal robustness, or environmental sensitivity, may be studied through individual differences in residual variance. These differences appear to be heritable, and there is therefore a need to fit models having breeding values explaining differences in residual variance. The aim of this report is to study whether breeding value estimation for environmental sensitivity (vEBV) can be performed on ...

The aim of this study was to investigate the genetic and phenotypic correlations of egg quality traits in Khazak chicken. Albumen height (AH), albumen weight (AW), eggshell color (ESC), yolk color (YC), eggshell index, long length of egg (ELL), short length of egg (ESL), eggshell weight (ESW), egg weight (EW), Haugh units, and yolk weight (YW) were measured in 201 eggs collected 6 d sequentiall...

Introduction These are (incomplete) course notes about generalised linear mixed models (GLMM). Special emphasis is placed on understanding the underlying structure of a GLMM in order to show that slight modifications of this structure can produce a wide range of models. These include familiar models like regression and ANOVA, but also models with intimidating names: animal models, threshold mod...

Conference Programme 0900-0930 Registration and Coffee 0930-1100 Session 1 Chair: Sue Welham 0930 Robin Thompson REML past, present and future 1000 Freedom Gumedze An alternative approach to outliers in meta-analysis 1030 Salvador Gezan Genetic analysis of tree clonal trials: combining individual and clonal information into ASReml Comparing statistical software for outputs on analysis of varian...

Genetic and phenotypic parameters for production traits and somatic cell count (SCC) for Jersey dairy cattle in Zimbabwe were estimated. A total of 10986 lactation records were obtained from Zimbabwe Livestock Identification Trust, with cows calving in the period from 1996 to 2008. An ASReml program fitting an animal model was used for the analyses. Heritability estimates for milk yield, fat yi...

Foal scores from the International Sporthorse Registry and Oldenburg Registry North America were used for statistical and genetic analysis. Scored traits include type and conformation (TC), athletic ability of movement (AM), overall development as related to age (OD), and total score (TS) calculated as a weighted average of TC, AM, and OD. Premium status (PS) was analyzed as a binary trait. Pre...