Porovnání dlouhodobé selekční odezvy šlechtitelských opatření ve stádě dojnic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F05%3A%230000130" target="_blank" >RIV/00027014:_____/05:#0000130 - 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

Comparison of long-term selection responses of breeding policy in dairy herds

Popis výsledku v původním jazyce

Genetic and economic responses were evaluated for different breeding arrangements: using tested or proved bulls, negative selection of cows or first-calvers, discarding of heifers and purchase those with higher breeding value and embryo transfer. Simulations for single use of breeding arrangements and their consequences over a fifty-year period were carried out for the above models using the gene flow method. The use of bulls can be recommended as the best breeding policy, especially the use of proved bulls at high selection intensity. Culling of cows and heifers are less economically advantageous. The replacement of heifers with ones with higher breeding value provided relatively high genetic gain but it was rather costly due to high purchasing costs.Embryo transfer was not economically advantageous, it can be recommended for production of sons for insemination.

Název v anglickém jazyce

Comparison of long-term selection responses of breeding policy in dairy herds

Popis výsledku anglicky

Genetic and economic responses were evaluated for different breeding arrangements: using tested or proved bulls, negative selection of cows or first-calvers, discarding of heifers and purchase those with higher breeding value and embryo transfer. Simulations for single use of breeding arrangements and their consequences over a fifty-year period were carried out for the above models using the gene flow method. The use of bulls can be recommended as the best breeding policy, especially the use of proved bulls at high selection intensity. Culling of cows and heifers are less economically advantageous. The replacement of heifers with ones with higher breeding value provided relatively high genetic gain but it was rather costly due to high purchasing costs.Embryo transfer was not economically advantageous, it can be recommended for production of sons for insemination.

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

2005

Kód důvěrnosti údajů

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

Název periodika

Czech Journal of Animal Science

ISSN

1212-1819

e-ISSN

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Svazek periodika

50

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

439-449

Kód UT WoS článku

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EID výsledku v databázi Scopus

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