Selecting an appropriate statistical model for estimating genetic parameters: A case study of pig maternal breeds in Czechia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F24%3A10005958" target="_blank" >RIV/00027014:_____/24:10005958 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41210/24:98756
Result on the web
<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:001218533400001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:001218533400001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.livsci.2024.105457" target="_blank" >10.1016/j.livsci.2024.105457</a>
Alternative languages
Result language
angličtina
Original language name
Selecting an appropriate statistical model for estimating genetic parameters: A case study of pig maternal breeds in Czechia
Original language description
A three-trait statistical model was designed for backfat thickness (BFT) and loin eye muscle depth (LMD) with accompanying variable average daily gain (ADG). Data from 82,507 Czech Large White and 37,556 Czech Landrace pigs were collected during on-farm performance testing from 2013 to 2022. Several animal models were tested with different combinations of effects and complexity. Model performance was evaluated by the linear regression (LR) method and predictivity. In Czech Large White, the preferred model comprised fixed effects of sex, birth year, herd, and ultrasound device, as well as random effects of herd-year-season (HYS), litter, and animal. In Czech Landrace, HYS was treated as fixed instead. The inclusion of maternal effects was not supported due to questionable impact on the main statistics. The selected model yielded mean absolute bias of 0.11 and 0.19, mean determination of 0.39 and 0.21, mean population accuracy of 0.36 and 0.31, and mean predictivity of 0.13 and 0.08 in Large White and Landrace, respectively. Heritability estimates were overall lower than those reported by other authors: 0.23, 0.10, and 0.10 in Large White and 0.26, 0.10, and 0.09 in Landrace for ADG, BFT, and LMD, respectively. Genetic correlations, on the other hand, reached relatively high values: 0.61, 0.61, and 0.66 in Large White and 0.71, 0.92, and 0.70 in Landrace for ADG-BFT, ADG-LMD, and BFT-LMD, respectively.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40203 - Husbandry
Result continuities
Project
<a href="/en/project/QK1910217" target="_blank" >QK1910217: Creation of a reference population and development of methods for estimating genomic breeding values of pig traits included into the Czech National Breeding Program.</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
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Livestock Science
ISSN
1871-1413
e-ISSN
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Volume of the periodical
283
Issue of the periodical within the volume
May
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
105457
UT code for WoS article
001218533400001
EID of the result in the Scopus database
2-s2.0-85189156615