estimation of gold reserves and resources has been of interest to mining engineers and geologists for ages. the existence of outlier values shows the economic part of the deposits subject to the fact that don’t depend on the human or technical errors. the presence of these high values causes a pseudo dramatically increment in variance estimation of economical blocks when applying conventional m...

Outliers often pose problems in analyses of data in plant breeding, but their influence on the performance of methods for estimating predictive accuracy in genomic prediction studies has not yet been evaluated. Here, we evaluate the influence of outliers on the performance of methods for accuracy estimation in genomic prediction studies using simulation. We simulated 1000 datasets for each of 1...

Reliable selection criteria are required for young riding horses to increase genetic gain by increasing accuracy of selection and decreasing generation intervals. In this study, selection strategies incorporating genomic breeding values (GEBVs) were evaluated. Relevant stages of selection in sport horse breeding programs were analyzed by applying selection index theory. Results in terms of accu...

The aim of this study was to evaluate genomic information inclusion in genetic parameter estimation standardized body weight at birth and 240, 365, 450 days age, visual scores for structure, precocity, muscularity, measured as yearlings Nelore cattle. We compared parameters, (co)variance components (estimated from Bayesian inference Gibbs sampling), breeding value accuracies, trends, principal ...

In the genealogical structure of breeding stock, highest specific weight is occupied by Reflection Sovering and Vis bek Aydiala lines, accounting for 56.8 39.9% animals, respectively. The study results Holstein cattle blood-group factors can be used to monitor its gene pool, genetic intrabreed differentiation, assess selection parameters, conduct targeted parental pairs. It was determined that ...

this study was aimed to evaluate the effect of gnrh injection on semen ejaculate characteristics in awassi rams collected in breeding and non breeding seasons. the study was conducted in late summer to early autumn when breeding activity commences, and in winter during the non breeding season. twelve mature awassi rams were used in this study. animals were randomly allocated into two equal grou...

embryo transfer (et) in holstein dairy cattle became an important commercial enterprise after the introduction of non-surgical recovery technique. embryo transfer could increase the reproductive rate of genetically superior cows. the objectives of the present study were to evaluate the use of et in iranian holstein dairy cattle to increase selection intensity on the dam side, economically; esti...