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Changes in inbreeding intensity and effect of different degrees of inbreeding on body weight and semen production of German Black Pied Dairy bulls


Archiv fur Tierzucht 31(3): 209-219
Changes in inbreeding intensity and effect of different degrees of inbreeding on body weight and semen production of German Black Pied Dairy bulls
Data on 17 795 young bulls born between 1974 and 1985 were analysed. 1564 (8.9%) were inbred: 278 (1.6%) had an inbreeding coefficient of 12.5%, 564 (3.2%) were 6.25% and 722 (4.1%) were 3.125% inbred. The overall av. coefficient was 0.53%, and in 1974, 1981 and 1985 it averaged 0.18, 0.97 and 0.68% resp. About 70% of the total inbreeding was attributed to use of 4 Friesian bulls.


Accession: 001772512



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