Estimation of genetic parameters for litter size in Charollais, Romney, Merinolandschaf, Romanov, Suffolk, Sumava and Texel breeds of sheep

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F14%3A64377" target="_blank" >RIV/60460709:41210/14:64377 - isvavai.cz</a>

Alternative codes found

RIV/00027014:_____/14:#0002019

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 litter size in Charollais, Romney, Merinolandschaf, Romanov, Suffolk, Sumava and Texel breeds of sheep

Original language description

The objective of this investigation was to estimate genetic parameters for litter size in Charollais, Romney, Merinolandschaf, Romanov, Suffolk, Sumava and Texel breeds of sheep. These breeds account for more than three quarters of the recorded sheep population in the Czech Republic. A total of 143,896 lambing records from 1990 to 2012 were analyzed. Variance components and genetic parameters for litter size were estimated separately for each breed using the animal model with repeatability. The model equation contained ewe age as a fixed effect and random effects of contemporary group, permanent environment and direct additive genetic effect of the animal. Estimates of phenotype variance (sigma(2)(P)) increased across breeds (0.236 for Sumava to 0.779for Romanov) with increasing breed average for number of lambs per litter. Variance component estimates for permanent environmental effect of the ewe were low (0.0001-0.0262). The variance of common environment of contemporary group (sigm

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

<a href="/en/project/QJ1310184" target="_blank" >QJ1310184: Breeding on offspring survival in beef cattle and sheep.</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

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

Name of the periodical

Small Ruminant Research

ISSN

0921-4488

e-ISSN

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Volume of the periodical

119

Issue of the periodical within the volume

1-3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

33-38

UT code for WoS article

000336346600006

EID of the result in the Scopus database

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