There are wide ranges of economic
values depending on regions, markets and production
systems. In order to have realistic current economic
weights, the economic values for the scenario 1 were
chosen based on available economic values for conventional
production in the literature, relative to litter size
(Table 1). Leg condition was not included in this scenario.
- Scenario 2, breeding goal with welfare considerations: all
traits from scenario 1 and leg condition of sows after first
lactation (LEGw) were included. Furthermore, non-market
values (NV) were given to two traits due to welfare
considerations in addition to the current economic values
(piglet mortality and weaning-to-mating interval). Hence,
the breeding goal H2 for scenario 2 is: