There has been much discussion in Kansas as to the desirability of
cross-breeding inbred breeds (so-called hybrids) with other breeds.
Consequently, a Beltsville No.1 (Poland x Landrace origin) was secured
and matings planned with the Duroc. The purpose was to study
the vigor and size of the litter produced and their ultimate performance
in the feedlot as compared with purebred Duroc pigs raised under
comparable conditions.
In the winter of 1952, nine purebred Duroc sows were mated to a
Duroc boar and five Duroc sows were mated to a Beltsville No.1 boar.
The following table gives a summary of the results of this experiment.
