According toe study by Main et al., variation in weaning age can be a major contributor in live weight at the end of finishing, with weaning ages of 12,15,18 and 21 days compared and results showing that earlier weaning ages are associated with lower weights. Hence post-weaning growth, morbidity and mortality can be significantly impacted by a piglet's weaning weight. In this respect, the farmers' practice of 'early' weaning to achieve a quicker return to oestrus and improve fertility for the sow can have a key influence and result in lower piglet weight. So, the challenge is how to achieve the best performance for both the sow and her piglets if early weaning does occur. This is where nutrition plays a significant role in promoting piglets' long-term health and performance.
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