GENETIC AND PHENOTYPIC INVESTIGATIONS OF PERFORMANCE-CHARACTER, SEMEN-CHARACTER AND FERTILITY-CHARACTER OF ARTIFICIAL-INSEMINATION BOARS .2. CORRELATIONS BETWEEN PERFORMANCE-CHARACTER, SEMEN-CHARACTER AND FERTILITY-CHARACTER

With data of the German hybrid programme genetic and phenotypic correl ations between the three complexes performance rest results (growth an d carcass traits), quantity and quality of ejaculates and fertility (l itter size and fertilization rate) were estimated. Correlations betwee n performance and semen quantity traits are generally low. Except betw een ejaculate volume and growth traits all correlations show genetical ly favourable trends. All correlations between performance test and mo tility criteria show genetically unfavourable tendencies. Correlations between performance and fertility traits are also small and show high standard errors. Single observations of ejaculates and directly corre sponding fertility results are not correlated because of the technical confectioning of semen doses. For the breeding programme no changes o f the present performance testing scheme of Al boars follow from the r esults of this study.