Average litter size on swine farms in Canada has increased from approximately 12.3 to 13.7 piglets in the past 5 years. Further improvement is expected and is an important determinant of the competitiveness of the industry in Western Canada. However, research conducted at PSCI showed that as litter size increased from 8.4 to 15.4 pigs born alive, average birth weight decreased by approximately 250 grams, or almost 40 grams per additional pig. The number of pigs less than 850 grams increased from 0.2 per litter in the small (5 to 12 piglets) litters to almost 1 per litter in the largest (16 or more born alive) litters. It is apparent that as litter size continues to increase it is crucial that these small pigs survive and go to market or the benefits of larger litters will not be not realized. This experiment was designed to determine if the requirement for a complex dense feed immediately post-weaning is dependent on the weaning weight of the pig. We hypothesized that the light-weight pigs at weaning would show a greater response to the higher quality feed. We also studied the whether the provision of creep feed was beneficial.