Changes over time in genetic parameters for growth in bulls and assessment of suitability of test methods
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F14%3A63889" target="_blank" >RIV/60460709:41210/14:63889 - isvavai.cz</a>
Alternative codes found
RIV/00027014:_____/14:#0001962
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Changes over time in genetic parameters for growth in bulls and assessment of suitability of test methods
Original language description
Objectives of the study were to examine alternative measures of growth potential of bulls in testing stations, determine whether genetic parameter estimates of such traits changed over time, and examine whether existing methods for performance testing were appropriate. Records from 1980 to 2010 of 44 425 Fleckvieh bulls in Czech progeny testing stations were analyzed. The following traits were examined: weight at the beginning of the test (150th day of age), weight at the end of the test (530th day of age), gain from birth to the beginning of the test, and gain during the test. Fixed effects in five multi-trait animal models were station-year-season groups, linear and quadratic regressions on age, and regression on heterozygosity (proportion of an individual's loci with alleles from different ancestor breeds). Random effects included additive genetic, permanent environment, and residual variances. Separate analyses were conducted in four consecutive time periods (1980-1987, 1988-1992,
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GI - Farm animal breeding and farm animal pedigree breeding
OECD FORD branch
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Result continuities
Project
<a href="/en/project/QH81312" target="_blank" >QH81312: Genetic evaluation of cattle reproduction and growth</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Czech Journal of Animal Science
ISSN
1212-1819
e-ISSN
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Volume of the periodical
59
Issue of the periodical within the volume
1
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
7
Pages from-to
19-25
UT code for WoS article
000335888900003
EID of the result in the Scopus database
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