there was a significant effect of batch, with significantly lower daily weight gain in batch 1 (749 g day) than in batches 2 (842 g day) and 3 (795 g day ) and significantly lower FCR in batch 2 (2.8 kg feed pig day) than in batches 1 (3.1 kg feed pig day) and 3 (3.1 kg feed pig day)