Number of pollen in polycross mixtures and mating partners for full sibs for breeding value estimation

The formulas consider additive and dominance variation, family size and number of pollen parents. The formulas and other considerations lead among other matters to the following statements:
- It is recommended to use 25 pollen parents in a pollen mix.
- Test families become considerable more accurate if they are large, even 50 is not at all as accurate as an infinite number.
- DPM can remain as a general mating design for generating the recruitment population, while it is also rather accurate for progeny-testing.
- SPM is sufficient for forwarding the breeding population and can be used
in low input situations or in lower ranking strata of the breeding population.