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The use of inbred bulls in breeding


Archiv fur Tierzucht 36(3-4): 245-264
The use of inbred bulls in breeding
Growth, semen production and breeding value for milk yield were analysed for 122 German Black Pied Dairy (GBPD) bulls with inbreeding coefficients of 6.25, 12.5 or 25%, and 114 non-inbred GBPD bulls of similar age, mostly paternal half-brothers of the inbred bulls. The inbred bulls had poorer semen production (ejaculate volume and number of pellets of frozen semen per ejaculate) than the non-inbred bulls, and a lower daily gain on test of 0.3-0.4% per 1% increase in inbreeding.


Accession: 002530374



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