Model calculations concerning an efficient design of a young bull breeding program for the Pinzgauer Cattle breed.
Abstract
Responding to the steadily declining population size of the Pinzgauer breed (a dual purpose cattle breed) in Austria during the last three decades, the responsible breeding organisation, the RZV Salzburg, is going to initiate a young bull breeding program. The purpose of this project is to examine by means of model calculations, if special alternative procedures within this program are suitable for improving the efficiency of this program. Four different procedures are being examined: Concerning the extent of the testbull-rate within the A.I., it can be said, that a higher testbull-rate is expected to improve the breeding-profit, but at the same time its realisation into practice may be difficult. A testbull-rate of about 60 % was found to be the best compromise between the different demands. The reduction of the number of testbulls used in A.I.per year from eight to six annually would result in an improvement of the breeding-profit of 5 %, but the occurance of problems with inbreeding can not be excluded. The establishment of a beef performance testing based on field data would not just promise increases in the breeding- profit of about 6 %, but also in the genetic gain of the beef performance traits. Generally this nexpensive procedure would have positive effects on the program. Finally the expansion of the capacity of a performance testing station for young bulls from 15 to 25 was discussed. The breeding-profit would increase up to 12 % above the level of the original program, but the required capital expenditure incident to this lets a realisation of this procedure seem difficult.
keywords breeding program design cattle Pinzgauer cattle breeding program
Publikationen
Effect of increased proportion of recorded cows mated with young bulls on the efficiency of the breeding program of Austrian Pinzgauer Cattle.
Autoren: Willam, A., Gierzinger, E., Eßl, A. Jahr: 1997
Conference & Workshop proceedings, paper, abstract
Project staff
Alfons Willam
Ass.Prof. Dipl.-Ing. Dr.nat.techn. Alfons Willam
alfons.willam@boku.ac.at
Tel: +43 1 47654-93222
Sub Projectleader
01.02.1996 - 31.10.1996
BOKU partners
External partners
Rinderzuchtverband Salzburg
Dr. Josef Lederer
partner