Faktory ovlivňující funkční dobu užitku krav plemene Slovenský pinzgavský skot

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F08%3A%230000803" target="_blank" >RIV/00027014:_____/08:#0000803 - 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

Factors affecting functional length of productive life of Slovak Pinzgau cows

Popis výsledku v původním jazyce

A proportional hazard model was used to analyze the impact of the most important factors on the length of productive life of 44796 Slovak Pinzgau cows. The calculations were carried out with Survival Kit 3.12. The most important factor was the milk production level within herd. Cows with extremely low milk production (less than 1.5 standard deviations below average) had a 4.8 times higher culling risk than average cows. The culling risk for highest yielding cows was about one half of the risk of averagecows. In the first lactation the culling risk was highest at the beginning and decreased in the course of the lactation whereas in the subsequent lactations the culling risk was highest at the end of the lactation. The risk decreased with parity. Cows from expanding herds were at lower risk to be culled compared to cows in herds of stable and decreasing size.

Název v anglickém jazyce

Factors affecting functional length of productive life of Slovak Pinzgau cows

Popis výsledku anglicky

A proportional hazard model was used to analyze the impact of the most important factors on the length of productive life of 44796 Slovak Pinzgau cows. The calculations were carried out with Survival Kit 3.12. The most important factor was the milk production level within herd. Cows with extremely low milk production (less than 1.5 standard deviations below average) had a 4.8 times higher culling risk than average cows. The culling risk for highest yielding cows was about one half of the risk of averagecows. In the first lactation the culling risk was highest at the beginning and decreased in the course of the lactation whereas in the subsequent lactations the culling risk was highest at the end of the lactation. The risk decreased with parity. Cows from expanding herds were at lower risk to be culled compared to cows in herds of stable and decreasing size.

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

2008

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

53

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000254682100001

EID výsledku v databázi Scopus

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