Evaluation of gestation length in Czech Holstein cattle
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F20%3AN0000205" target="_blank" >RIV/00027014:_____/20:N0000205 - isvavai.cz</a>
Result on the web
<a href="https://www.agriculturejournals.cz/publicFiles/150_2020-CJAS.pdf" target="_blank" >https://www.agriculturejournals.cz/publicFiles/150_2020-CJAS.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17221/150/2020-CJAS" target="_blank" >10.17221/150/2020-CJAS</a>
Alternative languages
Result language
angličtina
Original language name
Evaluation of gestation length in Czech Holstein cattle
Original language description
An objective of our study was to evaluate gestation length and its genetic variability in the Czech Holstein population. Data set consisted of 770 865 records of gestation length in 375 574 Holstein cows and covered the period from 2012 to 2018. Mean gestation length was 277 ± 4.9 days, and it was 1.4 days longer in male calves compared to females, and 1.1 days longer in cows compared to heifers. Animal repeatability model with maternal effect was employed for variance component estimation. The direct genetic effect explained the highest proportion of variability, and it corresponded with moderate direct heritability (0.48), while maternal heritability was much lower (0.06). We estimated conventional and genomic breeding values with the genomic matrix based on 39 145 single nucleotide polymorphisms in 13 844 animals. Genomic breeding values were weakly (< 0.25) but significantly correlated with breeding values for type, production and fitness traits. Pearson correlations between breeding values indicated a negative association of direct gestation length with milk production, longevity and fertility of bulls, and a positive association of maternal gestation length with most of the type traits related to the body composition. Genetic trends for male and female parts of the population showed a tendency to the shortening of gestation, which should be of concern, as short gestation could be reflected in a negative indirect response in other correlated traits, such as the incidence of stillbirth, the health status of cows after calving, culling, or conception rate.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
40203 - Husbandry
Result continuities
Project
<a href="/en/project/QK1810253" target="_blank" >QK1810253: Improvement of national-wide genomic evaluation of dairy cattle by including cows with domestic production records into genotyped reference population</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
2020
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
—
Volume of the periodical
65
Issue of the periodical within the volume
12
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
9
Pages from-to
473-481
UT code for WoS article
000603475600005
EID of the result in the Scopus database
—