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Alternative selection strategies for a three-way cross in pigs (Pietrain as the sire line and Large White boarsmated to German Landrace sows to produce the F<sub>1</sub>-female) are investigated to maximise both genetic gain andprofit. The number of nucleus sows in the main female line (German Landrace) can vary within a wide rangewithout noticeable effect on the genetic and economic response. Productive lifetimes of approximately one yearare recommended for nucleus boars and sows after the progeny test. Boars mated to produce crossbreds shouldbe used longer, especially in the terminal sire line. F<sub>1</sub>-sows can have a productive lifetime of more than twoyears and can be used close to their biological maximum.  Four testing schemes are compared and the contribution of the three breeds to the return is evaluated. Testingcrossbred animals at a central test Station cannot be recommended. This capacity should be used to test purebredanimals. Both monetary genetic gain and profit are higher in a scheme with a self-performance testing of boars atStation, in comparison to a scheme with only progeny testing at Station, by 36 and 68%, respectively. Due to areduced generation interval, using boars to produce breeding boars straight after their self-performance test leadsto a further increase of monetary genetic gain by 5% and profit by 13%. In all schemes, selection in Pietrainleads to the highest return due to the highest gene proportion in and its shorter distance to the terminal productand the therefore faster transfer of genetic gain

Genetic and economic evaluation of genetic improvement schemes in pigs. – II. Comparison of selection strategies in a three-way crossbreeding scheme