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Statements

Subject Item
n2:RIV%2F00027014%3A_____%2F01%3A00000226%21RIV%2F2002%2FMZE%2FM02002%2FN
rdf:type
n9:Vysledek skos:Concept
dcterms:description
The influence of the following three factors on the relation of standardised and discounted economic weights (SDEW) for reproduction and production traits was investigated: (i) the position of breeds in the crossing system, (ii) the use of breed-sex groups for mating in different tiers and (iii) the level of the management input parameters. The SDEW for each trait was calculated as the product of the marginal economic value, the genetic standard deviation and the number of discounted expressions. The rons. The ratio of SDEW for reproduction traits to SDEW for production traits was from 3:1 to 3.7:1 which is about twice the value of the corresponding ratio of undiscounted standardized economic weights (1.7:1). In each breed-sex group, there were significant differences in the SDEWR (up to 24%) dependent on the use of this group for mating in different tiers within a given crossing system or in different crossing systems. Changes in the management parameters had only a minor impact on the SDEWR. The influence of the following three factors on the relation of standardised and discounted economic weights (SDEW) for reproduction and production traits was investigated: (i) the position of breeds in the crossing system, (ii) the use of breed-sex groups for mating in different tiers and (iii) the level of the management input parameters. The SDEW for each trait was calculated as the product of the marginal economic value, the genetic standard deviation and the number of discounted expressions. The rons. The ratio of SDEW for reproduction traits to SDEW for production traits was from 3:1 to 3.7:1 which is about twice the value of the corresponding ratio of undiscounted standardized economic weights (1.7:1). In each breed-sex group, there were significant differences in the SDEWR (up to 24%) dependent on the use of this group for mating in different tiers within a given crossing system or in different crossing systems. Changes in the management parameters had only a minor impact on the SDEWR.
dcterms:title
Impact of crossing system on relative economic weights of traits in purebred pig populations Impact of crossing system on relative economic weights of traits in purebred pig populations
skos:prefLabel
Impact of crossing system on relative economic weights of traits in purebred pig populations Impact of crossing system on relative economic weights of traits in purebred pig populations
skos:notation
RIV/00027014:_____/01:00000226!RIV/2002/MZE/M02002/N
n3:strany
389-402
n3:aktivita
n13:Z
n3:aktivity
Z(MZE-M02-99-02)
n3:cisloPeriodika
6
n3:dodaniDat
n5:2002
n3:domaciTvurceVysledku
n4:7785402 n4:1368397 Wolf, Jochen
n3:druhVysledku
n14:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
682439
n3:idVysledku
RIV/00027014:_____/01:00000226
n3:jazykVysledku
n16:eng
n3:klicovaSlova
pig; crossbreeding schemes; economic weights; breeding objective
n3:klicoveSlovo
n6:pig n6:breeding%20objective n6:economic%20weights n6:crossbreeding%20schemes
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[B7EC800354F5]
n3:nazevZdroje
Journal of Animal Breeding and Genetics
n3:obor
n15:GI
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:rokUplatneniVysledku
n5:2001
n3:svazekPeriodika
118
n3:tvurceVysledku
Wolf, Jochen Nitter, Gerhard Fiedler, Jaromír Wolfová, Marie
n3:zamer
n11:MZE-M02-99-02
s:issn
0931-2668
s:numberOfPages
4