Genetic Evaluation of Resilience Indicators in Holstein Cows
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F25%3A10006242" target="_blank" >RIV/00027014:_____/25:10006242 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2076-2615/15/5/667" target="_blank" >https://www.mdpi.com/2076-2615/15/5/667</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ani15050667" target="_blank" >10.3390/ani15050667</a>
Alternative languages
Result language
angličtina
Original language name
Genetic Evaluation of Resilience Indicators in Holstein Cows
Original language description
The analysis of resilience indicators was based on daily milk yields recorded from 3347 lactations of 3080 Holstein cows located on 10 farms between 2022 and 2024. Six farms used an automatic milking system. A random regression function with a fourth-degree Legendre polynomial was used to predict the lactation curve. The indicators were the natural log-transformed variance (LnVar), lag-1 autocorrelation (r-auto), and skewness (skew) of daily milk yield (DMY) deviations from the predicted lactation curve, as well as the log-transformed variance of DMY (Var). The single-step genomic prediction method (ssGBLUP) was used for genomic evaluation. A total of 9845 genotyped animals and 36,839 SNPs were included. Heritability estimates were low (0.02-0.13). The strongest genetic correlation (0.87) was found between LnVar and Var. The genetic correlation between r-auto and skew was also strong but negative (MINUS SIGN 0.73). Resilience indicators showed a negative correlation with milk yield per lactation and a positive correlation with fat and protein contents. The negative correlation between fertility and two resilience indicators may be due to the evaluation period (50th-150th day of lactation) being when cows are most often bred after calving, and a decrease in production may accompany a significant oestrus. The associations between resilience indicators and health traits (clinical mastitis, claw health) were weak but mostly favourable.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40203 - Husbandry
Result continuities
Project
<a href="/en/project/QK22020280" target="_blank" >QK22020280: Use of genomic selection to optimise the resilience of dairy cattle</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
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Animals
ISSN
2076-2615
e-ISSN
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Volume of the periodical
2025
Issue of the periodical within the volume
15
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
667
UT code for WoS article
001442329500001
EID of the result in the Scopus database
2-s2.0-86000566048