Utilization of performance data from purebred and crossbred pigs for selection.
Abstract
Crossbreeding of populations has been widely accepted as an efficient method for commercial production. Nevertheless, almost all commercial breeding animals in pig breeding are selected using only pureline information. The genetic correlation between purebred and crossbred performance (rpc)is an important parameter to decide whether selection should only be based on purebred information or additional crossbred information should be used. The behaviour of rpc was studied under a model with two loci,in populations with varying gene frequencies, degrees of dominance and additive by additive epistasis. Further, a simulation study was conducted to compare a selection based on purebred performance with a selection based on purebred and crossbred information. Using records from pigs from Lower Austria the genetic correlation between the performance of purebred animals on station and crossbred animals in the field was estimated. The additional use of crossbred-performance for selection in Austrian pig breeding is recommended for the future.
crossbreeding pig genetic correlation dominance epistasis
Publikationen
Untersuchungen zur Qualität der Leistungsinformation von Reinzucht- und Kreuzungstieren in der Schweinezucht
Autoren: Baumung, R., Sölkner, J., Eßl, A. Jahr: 1998
Forschungsbericht (extern. Auftraggeber)
Mitarbeiter*Innen
Johann Sölkner
Univ.Prof. Dipl.-Ing. Dr.nat.techn. Johann Sölkner
johann.soelkner@boku.ac.at
Tel: +43 1 47654-93201, 93231
Sub Projectleader
01.07.1995 - 31.12.1997
Alfons Willam
Ass.Prof. Dipl.-Ing. Dr.nat.techn. Alfons Willam
alfons.willam@boku.ac.at
Tel: +43 1 47654-93222
Project Staff
01.07.1995 - 31.12.1997
BOKU Partner
Externe Partner
Genossenschaft NÖ. Ferkelproduzenten und Schweinemäster
Ing. Robert Krapf
partner
Verband NÖ. Schweinezüchter
Dipl.-Ing. Alexander Liebscher
partner
Schweinprüf- und Besamungszentrum der NÖ. Landes-Landwirtschaftskammer
Dipl.-Ing. Christian Draxl
partner