Relativní ekonomické váhy maternálních a přímých znaků ve šlechtitelských programech

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F04%3A00010092" target="_blank" >RIV/00027014:_____/04:00010092 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Relative economic weights of maternal versus direct traits in breeding schemes

Popis výsledku v původním jazyce

In genetic improvement schemes, the economic values of traits in the breeding objectives depend on time and frequency of realisation in offspring generations. A measure for this is the number of discounted expressions derived by the gene flow procedure.These were calculated for two groups of traits or trait components: "Maternal traits" realised repeatedly during the life of the dam and "direct traits" realised once in early life of an animal. Selection was considered for purebred populations with a multi-purpose objective and for populations incorporated as specialised sire or dam breeds in a three-way crossbreeding scheme. The reproductive conditions of pigs, sheep, beef and dairy cattle were taken as example. For most realistic conditions in a purebred population, the marginal economic value for a maternal trait should be weighted with a factor between 0.55 and 0.60 of that for a direct trait.

Název v anglickém jazyce

Relative economic weights of maternal versus direct traits in breeding schemes

Popis výsledku anglicky

In genetic improvement schemes, the economic values of traits in the breeding objectives depend on time and frequency of realisation in offspring generations. A measure for this is the number of discounted expressions derived by the gene flow procedure.These were calculated for two groups of traits or trait components: "Maternal traits" realised repeatedly during the life of the dam and "direct traits" realised once in early life of an animal. Selection was considered for purebred populations with a multi-purpose objective and for populations incorporated as specialised sire or dam breeds in a three-way crossbreeding scheme. The reproductive conditions of pigs, sheep, beef and dairy cattle were taken as example. For most realistic conditions in a purebred population, the marginal economic value for a maternal trait should be weighted with a factor between 0.55 and 0.60 of that for a direct trait.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GI - Šlechtění a plemenářství hospodářských zvířat

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2004

Kód důvěrnosti údajů

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

Název periodika

Livestock Production Science

ISSN

0301-6226

e-ISSN

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Svazek periodika

88

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

117-127

Kód UT WoS článku

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EID výsledku v databázi Scopus

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