Impact of Genetic Groups and Herd-Year-Season Fixed/Random on Genetic Parameter Estimates from Large Data Sets in Pigs

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F12%3A%230001751" target="_blank" >RIV/00027014:_____/12:#0001751 - isvavai.cz</a>

Result on the web

<a href="http://www.respigbreed.cz/2012/2/20.pdf" target="_blank" >http://www.respigbreed.cz/2012/2/20.pdf</a>

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Impact of Genetic Groups and Herd-Year-Season Fixed/Random on Genetic Parameter Estimates from Large Data Sets in Pigs

Original language description

Four-trait animal models were used to estimate genetic parameters for lean meat percentage, average daily gain from birth to the end of the test, number of piglets born alive in the first litter and number of piglets born alive in the second and subsequent litters for Czech Large White and Czech Landrace pigs. The models differed by considering herd-year-season as random or fixed and by the presence or absence of genetic group effects. Similar heritabilities and genetic correlations between traits wereestimated for all four variants of models giving no reason for preferring one of these variants. However, results from the literature show that treating herd-year-season as fixed effect in the genetic evaluation should be desirable because qualitative genetic material has been more and more concentrated in certain herds. The use of genetic groups in the models seems to be problematic and is probably not really necessary.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GI - Farm animal breeding and farm animal pedigree breeding

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Research in Pig Breeding

ISSN

1802-7547

e-ISSN

—

Volume of the periodical

6

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

88-96

UT code for WoS article

—

EID of the result in the Scopus database

—