Genomic selection can have a major impact on animal breeding programs, especially where traits that are important in the breeding objective are hard to select for otherwise. Genomic selection provides more accurate estimates for breeding value earlier in the life of breeding animals, giving more ...
Studies on Selection in Animal BreedingIV. Selection Bias in Estimation of the Repeatability An animal model and an approximative method for calculating repeatabilities of estimated breeding values are used in Finnish dairy cow evaluation. Changes ... Knut,Rnningen - 《Acta Agr Scand》 被引量: 0...
As a result, many dog breeds vastly differ in appearance, a unique phenomenon in the animal world, as different breeds of a single species generally look like each other. The Chihuahua and the Dalmatian, for instance, are both dogs, yet they share few physical features. Selective breeding ...
对于wbGS,除了获得更大的参考人群外,似乎几乎没有机会改善预测。对于abGS,有许多改进的途径。基因组序列数据可比高密度SNP产生的EBV更准确,因为数据中包含因果变异,我们不必依赖LD。关于基因组每个位点突变影响的生物学知识的增加,可被用于发现这些因果变体。 如果wbGS产生足够准确的EBV(例如> 0.9),则无需探索abGS。
Domestication and selective breeding has resulted in over 1000 extant cattle breeds. Many of these breeds do not excel in important traits but are adapted to local environments. These adaptations are a valuable source of genetic material for efforts to improve commercial breeds. As a step toward ...
Historically in animal breeding, quantitative traits were described by the “infinitesimal model” in which phenotypes result from large numbers of genetic factors, each with an infinitesimal additive effect. More recently, the “omnigenic model” describes two types of genetic effects38. Core variants...
The bower and its decorations are hypothesized to influence female choice in these birds. However, there have bee... Gerald,Borgia - 《Animal Behaviour》 被引量: 557发表: 1985年 Male Reproductive Tactics in an Explosive Breeding Toad Population American toad (Bufo amencanus) males use one of ...
Analysis of the baseline survey on the prevalence of Salmonella in holdings with breeding pigs in the EU, 2008: Part A: Salmonella prevalence estimates Salmonella is a major cause of food-borne illness in humans. Farm animals and foods of animal origin are important sources of human Salmonella ...
It does not, however, seem to have gained the same popularity in plant breeding and variety testing as it has in animal breeding. In plants, application of mixed models with random genetic effects has up until recently been mainly restricted to the estimation of genetic and non-genetic ...
1. Spotted sandpipers have a resource defense polyandrous mating system in which females compete for control of breeding territories and mates, and males provide most of the parental care. 2. Data from a nine year study of a local breeding population showed that females preceded males to the ...