Genetic parameters for female fertility and milk production traits in first-parity Czech Holstein cows

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F12%3A%230001597" target="_blank" >RIV/00027014:_____/12:#0001597 - isvavai.cz</a>
Result on the web
<a href="http://www.agriculturejournals.cz/publicFiles/61173.pdf" target="_blank" >http://www.agriculturejournals.cz/publicFiles/61173.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Genetic parameters for female fertility and milk production traits in first-parity Czech Holstein cows
Original language description
The aim of this study was to estimate genetic parameters for female fertility and production traits in first-parity Czech Holstein cows and to quantify the effect of using this information on the accuracy of a selection index in seven different scenarios. In order to estimate genetic (co)variance components, the DMU software running an AI-REML algorithm was used. The analyses were made using a series of bivariate animal models. The pedigree included 164 125 animals and it was set up using a pruned animal model design. The present study included the following female fertility traits for the first lactations: calving to the first insemination (CF), days open (DO), calving from the first to the last insemination (FL), and milk production traits: milk production (MLK), kg of fat (FAT), and kg of protein (PROT). The heritability for all the investigated fertility traits was low and close to 0. Moderate heritabilities for production traits ranging from 0.20 (MLK) to 0.23 (PROT) were estimate
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GG - Zootechnics
OECD FORD branch
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Project
<a href="/en/project/QI91A238" target="_blank" >QI91A238: Efficient approaches in dairy herd management</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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