The hybrid boars were found to have produced more semen than the purebred ones, which came to light in terms of the number of insemination doses available, in a longer sperma survival and in a higher conception rate following artificial insemination using the hybrid boar semen. These important reproduction characteristics benefit the major economic objectives to be attained by the development of hybrid boars in Czechoslovakia, based on the Duroc and Belgian Landrace breeds, i.e. to utilize the potential of the distinct commercial meat type of American and Belgian provenance and to e liminate at the same time certain traits associated with the too unisided selection for a high half-carcass meat proportion.

F. Louda, J. Pavlik

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume X. Breeding programs for swine, poultry, and fish., , 82–86, 1986
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