Estimation of (Co)Variance Components for Age at First Farrowing and Farrowing Interval in Czech Large White

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F16%3AN0000099" target="_blank" >RIV/00027014:_____/16:N0000099 - isvavai.cz</a>

Result on the web

<a href="http://www.vuzv.cz/sites/File/_privat/16100.pdf" target="_blank" >http://www.vuzv.cz/sites/File/_privat/16100.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Estimation of (Co)Variance Components for Age at First Farrowing and Farrowing Interval in Czech Large White

Original language description

We aimed to estimate the variance and covariance components for the original and transformed age at the first far­rowing (AFF) and farrowing interval in this study. The data from 25,094 sows (77,544 observations) of the Czech Large White pig breed between January 2000 and December 2015 provided by Czech Pig Breeders Association were used for the analyses. Data higher than the median were only transformed. The farrowing interval was evaluated separately from the first to the fourth parity (FI1-FI4). The heritabilities for the original traits were very low: 0.17, 0.11, 0.07, 0.06, and 0.06 for AFF and FI1-FI4, whereas those for the transformed traits were higher: 0.19, 0.14, 0.11, 0.11, and 0.12 for AFF and FI1-FI4, respectively. The phenotypic correlations between the traits were low, but significant. The estimated genetic correlations between all the farrowing intervals were clearly lower than one, indicating that all the farrowing intervals should be treated as different traits. Using the transformation procedure decreased the skewness and kurtosis of the original data in our study. The heritabilities of the analysed farrowing intervals were only increased owing to the transformation

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

GI - Farm animal breeding and farm animal pedigree breeding

OECD FORD branch

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Project

<a href="/en/project/QJ1310109" target="_blank" >QJ1310109: Optimization of the Czech pig breeding program with special regard to reproduction and functional traits</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2016

Confidentiality

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

Article name in the collection

24th Int. Symposium Animal Science Days

ISBN

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ISSN

1581-9175

e-ISSN

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Number of pages

6

Pages from-to

183-188

Publisher name

Acta agriculturae Slovenica

Place of publication

Ljubljana

Event location

Ljubljana

Event date

Sep 21, 2016

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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