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Development of a breeding programme for beef cattle based on the case of the Fleischrinder-Herdbuch Bonn e.V. 1st communication: Breeding programme, breeding goal, performance testing, estimation of breeding values



Development of a breeding programme for beef cattle based on the case of the Fleischrinder-Herdbuch Bonn e.V. 1st communication: Breeding programme, breeding goal, performance testing, estimation of breeding values



Zuechtungskunde 70(3): 157-171, May-June



The analyses of variance and the calculation of the genetic parameters were based on data obtained from on-station as well as in field performance testing of young bulls of the breeds Limousin and Charolais. Data of 1.421 station tested bulls and 1.509 field tested bulls were available. Considered performance traits were daily weight gain during the testing period (TZStation), feed conversion during the testing period conversion in terms of StE input per kg gain (FVStation), and muscle score on station (BEMStation) as well as body weight (KGEWFeld) and muscle score in field (BEMFeld). The estimation of heritabilities was carried out based on a multivariate model under simultaneous consideration of all five traits. The heritability estimates for the traits recorded on station and in field were as follows: TZStation: 0.37 (+-0,048), FVStation: (+-0.23 (+-0.038), BEMStation: 032 (+-0.038), KGEWFeld: 0.22 (+-0.032) und BEMFeld: 0,36 (+-0.038). Relative to the results published in literature, in particular the heritability estimates of the fatting traits were on a low level. A high negative correlation of rg = -0.82 between TZStation and FVStation was estimated in agreement with the literature. With rg = -0.04 respectively rg = 0.04, no genetic relation was found neither between TZStation and BEMStation nor between TZStation and BEMFeld.

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