GWAS in practical cattle breeding in the Czech Republic - single step method, genetic progress

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F16%3AN0000101" target="_blank" >RIV/00027014:_____/16:N0000101 - isvavai.cz</a>

Result on the web

<a href="http://www.vuzv.cz/sites/File/_privat/16102.pdf" target="_blank" >http://www.vuzv.cz/sites/File/_privat/16102.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15414/afz.2016.19.03.74-78" target="_blank" >10.15414/afz.2016.19.03.74-78</a>

Result language

angličtina

Original language name

GWAS in practical cattle breeding in the Czech Republic - single step method, genetic progress

Original language description

Development of genetic evaluation of animals is permanent process. It was going from estimated breeding value (EBV) calculated by CC-test, across a BLUP - animal model and RR-TDM, to the genomic enhanced breeding value (GEBV) using genetic markers. Methods of genetic evaluation become a part of marketing strategies of insemination companies. Therefore all countries and association of breeders seek to be compatible with others. Now we are in a period of massive global implementation of genomic evaluation, which combines traditional BLUP with huge quantity of genetic SNP markers. Multi-step procedures are now usual in practice, which work with deregressed proofs. Development of methods attained to the single-step procedure (ssGBLUP) which overcomes some difficulties of previous methods, improves reliabilities of evaluation and compares all animals, genotyped and ungenotyped, in entire nation-wide population. Genomic evaluation influence above all young genotyped animals. In Czech Republic single-step procedure is routinely used for national evaluation of milk, linear type traits, reproduction and longevity. GEBVs are accompanied by genomic reliabilities. Genetic trends over last 20 years are in some traits different for genomic evaluation compared to traditional BLUP evaluation, although input data and genetic parameters (heritability) are the same and genotyped animals were only small proportion from entire evaluated population. Differences in genetic trends increase mainly in new batches of animals. Reason of it could be in the changed variability of breeding values and "genomic correction" of relationship between animals, which is expanded from genotyped animals to others individuals in a population.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

GI - Farm animal breeding and farm animal pedigree breeding

OECD FORD branch

—

Project

<a href="/en/project/QJ1510139" target="_blank" >QJ1510139: Nation-wide information system of genetic evaluation of farm animals</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Acta Fytotechnica et Zootechnica

ISBN

—

ISSN

1336-9245

e-ISSN

—

Number of pages

5

Pages from-to

74-78

Publisher name

Slovak University of Agriculture

Place of publication

Nitra

Event location

Nitra

Event date

Sep 7, 2016

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

—