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Reliability of breeding values for single- and multi-trait models of dam pig breed obtained using direct inversion and approximation methods

Identifikátory výsledku

  • Kód výsledku v IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F17%3AN0000219" target="_blank" >RIV/00027014:_____/17:N0000219 - isvavai.cz</a>

  • Výsledek na webu

    <a href="https://vuzv.cz/_privat/17239.pdf" target="_blank" >https://vuzv.cz/_privat/17239.pdf</a>

  • DOI - Digital Object Identifier

Alternativní jazyky

  • Jazyk výsledku

    angličtina

  • Název v původním jazyce

    Reliability of breeding values for single- and multi-trait models of dam pig breed obtained using direct inversion and approximation methods

  • Popis výsledku v původním jazyce

    The objective of this study was to predict breeding values for single- and multi-trait animal models and compute their reliabilities using a direct inversion method (DIM), and single (ST-APM) and multi-trait approximate methods (MT-APM). Variance and covariance components of lean meat (LM) content, average daily gain (ADG) from birth until the end of the field test, and number of piglets born alive at first (NBA1) and second and subsequent parities (NBA2), were estimated for the analyses of Czech Large White pigs (390,734 records), using single- and four-trait animal models. The average reliabilities estimated by DIM for all considered animals were 0.514 ±0.069, 0.406 ±0.070, 0.050 ±0.044, and 0.321 ±0.090 for LM, ADG, NBA1, and NBA2, respectively. Values of 0.576 ±0.087, 0.150 ±0.078, 0.228 ±0.078, and 0.323 ±0.099, were obtained for the ST-APM for LM, ADG, NBA1, and NBA2, respectively. The use of MT-APM slightly increases the reliability of breeding values by 4%, 6%, 14% and 8% for LM, ADG, NBA1, and NBA2, respectively. In addition, the dependence of the reliability values on the number of offspring of breeding boars is obtained; the reliability increases from 0.215 for less than 5 offspring to 0.989 for more than 400 offspring for the LM trait. Calculated Pearson's and Spearman's correlation coefficients between the employed methods were, in general, high, positive, and highly statistically significant. The multi-trait approximation method can be used for the calculation of reliabilities of breeding values as an alternative for direct inversion method that has computational limitations.

  • Název v anglickém jazyce

    Reliability of breeding values for single- and multi-trait models of dam pig breed obtained using direct inversion and approximation methods

  • Popis výsledku anglicky

    The objective of this study was to predict breeding values for single- and multi-trait animal models and compute their reliabilities using a direct inversion method (DIM), and single (ST-APM) and multi-trait approximate methods (MT-APM). Variance and covariance components of lean meat (LM) content, average daily gain (ADG) from birth until the end of the field test, and number of piglets born alive at first (NBA1) and second and subsequent parities (NBA2), were estimated for the analyses of Czech Large White pigs (390,734 records), using single- and four-trait animal models. The average reliabilities estimated by DIM for all considered animals were 0.514 ±0.069, 0.406 ±0.070, 0.050 ±0.044, and 0.321 ±0.090 for LM, ADG, NBA1, and NBA2, respectively. Values of 0.576 ±0.087, 0.150 ±0.078, 0.228 ±0.078, and 0.323 ±0.099, were obtained for the ST-APM for LM, ADG, NBA1, and NBA2, respectively. The use of MT-APM slightly increases the reliability of breeding values by 4%, 6%, 14% and 8% for LM, ADG, NBA1, and NBA2, respectively. In addition, the dependence of the reliability values on the number of offspring of breeding boars is obtained; the reliability increases from 0.215 for less than 5 offspring to 0.989 for more than 400 offspring for the LM trait. Calculated Pearson's and Spearman's correlation coefficients between the employed methods were, in general, high, positive, and highly statistically significant. The multi-trait approximation method can be used for the calculation of reliabilities of breeding values as an alternative for direct inversion method that has computational limitations.

Klasifikace

  • Druh

    J<sub>ost</sub> - Ostatní články v recenzovaných periodicích

  • CEP obor

  • OECD FORD obor

    40203 - Husbandry

Návaznosti výsledku

  • Projekt

    <a href="/cs/project/QJ1310109" target="_blank" >QJ1310109: Optimalizace Českého národního programu pro šlechtění prasat se zvláštním ohledem na funkční a reprodukční znaky</a><br>

  • Návaznosti

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

Ostatní

  • Rok uplatnění

    2017

  • Kód důvěrnosti údajů

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

Údaje specifické pro druh výsledku

  • Název periodika

    Acta fytotechnica et zootechnica

  • ISSN

    1336-9245

  • e-ISSN

  • Svazek periodika

    20

  • Číslo periodika v rámci svazku

    4

  • Stát vydavatele periodika

    SK - Slovenská republika

  • Počet stran výsledku

    5

  • Strana od-do

    90-94

  • Kód UT WoS článku

  • EID výsledku v databázi Scopus