Estimation of genetic parameters and breeding values for pigs in Austria.
Abstract
The aim of this study was to develop the basis for implementing a BLUP-animal model for routine evaluation in the Austrian pig breeding program. A REML procedure was used to estimate the genetic parameters for Edelschwein (Large White), Landrasse (Landrace) und Pietrain, the three mainly used breeds in Austria. Fattening and carcass data came from 3 testing stations. For reproduction traits field data were considered. For the fattening and carcass traits feed conversion ratio, daily gain, lean meat content, intramuscular fat content and meat quality index consisting of pH-value, water holding capacity, drip-loss the multivariate animal model contained the effects herd year*season, common environment of the litter. For the reproduction traits total number of piglets born, number of piglets born alive and number of piglets weaned the repeatability model contained the effects herd*year, farrowing month, farrowing number, way of insemination,permanent environment of the sow and farrowing interval as a covariable. The estimated heritabilities were 0.06-0.33 for feed conversion ratio, 0.17-0.39 for daily gain and 0.43-0.53 for lean meat content. The meat quality traits show lower heritabilities from 0.01 to 0.37 except intramuscular fat content (0.34-0.67). For the reproduction traits low heritabilities between 0.03 and 0.12 were estimated. Breeding values were estimated using a BLUP procedure considering the same model as for the parameter estimation. Genetic and phenotypic trends were shown for all traits considered. For routine evaluation the organisation of a central database, considering all Austrian pig breeding organisations, was recommended.
keywords genetic parameters breeding value estimation pig animal model
Publikationen
Genetic parameters for lean meat content and meat quality traits in different pig breeds.
Autoren: Knapp, P., Willam, A., Sölkner, J. Jahr: 1997
Journal articles
Genetic parameters for lean meat content and meat quality traits in different types of pig breeds.
Autoren: Knapp, P., Willam, A., Sölkner, J. Jahr: 1996
Conference & Workshop proceedings, paper, abstract
Project staff
Johann Sölkner
Univ.Prof. Dipl.-Ing. Dr.nat.techn. Johann Sölkner
johann.soelkner@boku.ac.at
Tel: +43 1 47654-93201, 93231
Project Leader
01.10.1994 - 31.03.1997
Alfons Willam
Ass.Prof. Dipl.-Ing. Dr.nat.techn. Alfons Willam
alfons.willam@boku.ac.at
Tel: +43 1 47654-93222
Sub Projectleader
01.10.1994 - 31.03.1997
BOKU partners
External partners
Austrian Pig Producers
none
partner