Pigs on the Accelerated treatment were heavier (P < 0.01) than pigs on the Conventional treatment at the end of the treatment period (9.2 vs. 8.1 kg, SE ± 0.13) and at 56 d of age (19.6 vs. 18.3 kg, SE ± 0.28). Early growth rate did not affect growth from 35 d of age to slaughter weight, or days to reach slaughter weight. Pigs on the Conventional treatment had greater (15.6 vs. 14.1 mm, SE ± 0.47, P < 0.01) backfat depths at slaughter than those on the Accelerated treatment. Heavy pigs at weaning were heavier (P < 0.001) at birth and 56 d of age than light pigs, and reached slaughter weight 8.6 d earlier (P < 0.001). In summary, weaning weight, but not growth rate in the first 2 wk after weaning, influenced age at slaughter.