Evaluation of score for subclinical ketosis risk in Czech Holstein cows

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F20%3AN0000155" target="_blank" >RIV/00027014:_____/20:N0000155 - isvavai.cz</a>

Result on the web

<a href="http://acta.fapz.uniag.sk/journal/index.php/on_line/article/view/722/pdf" target="_blank" >http://acta.fapz.uniag.sk/journal/index.php/on_line/article/view/722/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15414/afz.2020.23.mi-fpap.250-257" target="_blank" >10.15414/afz.2020.23.mi-fpap.250-257</a>

Result language

angličtina

Original language name

Evaluation of score for subclinical ketosis risk in Czech Holstein cows

Original language description

This study aimed to evaluate the score for subclinical ketosis risk, which is routinely monitored in Czech Holstein cows. The score is based on milk recording indicator traits which include fat-to-protein ratio, fat-to-lactose ratio, citric acid, β-hydroxybutyrate, and acetone concentrations. The score was significantly (P < 0.001) affected by the age of cow at calving, days in milk (DIM) and season of test day recording. Variance components were estimated with a univariate linear animal model for the score on the first test day and with a multivariate linear animal model for the score in 3 successive test-days (6-40, 30-70, 60-100 DIM). The heritability estimate was lower at the beginning of lactation (0.08) and increased gradually to 0.11 at the end of the recorded period. Genetic correlations between the score at the first and the other two test-days were lower than 1 indicating that they are genetically different traits. Estimated breeding values were normally distributed with mean 0.20 and reliabilities up to 0.66 in females and 0.98 in males. Breeding values were negatively correlated with most of other routinely evaluated traits, with the strongest correlations with milk fat percentage (0.39), body condition score (-0.26) and fertility of cows (-0.25). The score for subclinical ketosis risk showed sufficient genetic variability and had the potential to be used in genetic improvement of resistance to (sub)clinical ketosis of Czech Holstein cows.

Czech name

—

Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

40203 - Husbandry

Project

<a href="/en/project/QK1910320" target="_blank" >QK1910320: Research of dairy cattle breeding methods with the goal to improve disease resistance using genomic approach, systemic health data collecting and targeted genotyping</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

Publication year

2020

Confidentiality

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

Name of the periodical

Acta Fytotechnica et Zootechnica

ISSN

1336-9245

e-ISSN

—

Volume of the periodical

23

Issue of the periodical within the volume

December

Country of publishing house

SK - SLOVAKIA

Number of pages

8

Pages from-to

250-257

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85097632356