Estimation of genetic parameters for milk production traits in Czech dairy cattle populations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F01%3A00000098" target="_blank" >RIV/00027014:_____/01:00000098 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Estimation of genetic parameters for milk production traits in Czech dairy cattle populations

Original language description

Multiple-trait analyses treating the yields in the first three lactations as different traits were performed for milk fat and protein yield for the populations of the Holstein and Czech Pied breeds kept in the Czech Republic. Data sets from the nationalmilk recording data base were used. Five subsets of data were formed for each breed. The total number of animals with lactation records was 738488 for Holstein and 1016388 for Czech Pied breed. Variance and covariance components were estimated with VCE with VCE using REML under an animal model. The model included the factors herd-year-season (fixed) animal (random) calving age days open and calving interval (covariables). The estimated h2 for milk yield were higher for Holstein (0.28 to 0.30) than for Czech Pied cattle (0.21 to 0.26). They were slightly higher than the heritabilities for fat and protein yield. A genetic correlation near one was found between the yields for the second and third lactations.

Czech name

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Czech description

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Type

J_x - 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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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2001

Confidentiality

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

Name of the periodical

Czech Journal of Animal Science

ISSN

1212-1819

e-ISSN

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Volume of the periodical

46

Issue of the periodical within the volume

7

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

11

Pages from-to

292-301

UT code for WoS article

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EID of the result in the Scopus database

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