The influence of inbreeding depression on reproduction traits - age at first calving in dairy cows

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F15%3A67929" target="_blank" >RIV/60460709:41210/15:67929 - isvavai.cz</a>

Alternative codes found

RIV/26788462:_____/15:#0000763

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The influence of inbreeding depression on reproduction traits - age at first calving in dairy cows

Original language description

The aim of this study was to evaluate the effect of inbreeding depression on age at first calving in Holstein and Czech Fleckvieh cows. Only cows with a complete pedigree to the fifth generation were used. Data were collected from 34 farms in the Czech Republic. For proper comparison, each inbred cow (n=1046) was assigned to at least one noninbred equal (n=1046). Inbred and noninbred pairs were matched on characteristics such as identical father, first calving interval occurring at the same farm and calves born in the same year and month (± 2 months). The PROC GLM of SAS® with five fixed effects was applied to all data. Inbred Holstein and Czech Fleckvieh cows and their matched noninbred equals were then divided according to inbreeding coefficient into four (event. five) groups. For Holstein inbred groups: FX=1.25; FX=3.125; FX=6.0-12.0; FX=25.0; FX>25; respectively all animals, the following extension of age at first calving was found: +2.7; +6.9; +9.5; +18.5; +26.8; +9.6 days, respectively. While

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

GG - Zootechnics

OECD FORD branch

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Project

<a href="/en/project/QI91A061" target="_blank" >QI91A061: Influence of different metabolic activity of organisms on biological and fertilizing characteristics of gametes in dairy cattle.</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

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

Name of the periodical

Bulgarian Journal of Agricultural Science

ISSN

1310-0351

e-ISSN

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Volume of the periodical

21

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

7

Pages from-to

680-686

UT code for WoS article

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EID of the result in the Scopus database

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