Variability of milk production within the contemporary groups in prediction of breeding value

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F01%3A00000261" target="_blank" >RIV/00027014:_____/01:00000261 - 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

Variability of milk production within the contemporary groups in prediction of breeding value

Original language description

Calving frequency within the year and variability of milk production within the herd-year-season (HYS) for cows in the 1st to 3rd lactation of the Czech Pied (C) and Holstein (H) cattle calved in 1996 to 1997 was determined. The herds were divided into seasons on the basis of the number of observations from 2 to 15. Systematic effects of the environment (HYS) and third degree polynominal regression for the age to at 1st calving, for the service period, and previous calving interval were taken into accouinto account. With the increasing number of individuals within HYS, the season was prolonged and resulted in the increase of residual variability. In dependence on the number of individuals within HYS and lactation number, in C cattle the systematic effeinto account. With the increasing number of individuals within HYS, the season was prolonged and resulted in the increase of residual variability. In dependence on the number of individuals within HYS and lactation number, in C cattle the

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

12

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

514-522

UT code for WoS article

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EID of the result in the Scopus database

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