What can be a consequence of delaying breeding in gilts?

Delaying breeding in gilts can lead to improved natural immunity because it allows the animals to grow and mature further before their first breeding. During this period, gilts can accumulate more antibodies and develop a stronger immune system, which can lead to better overall health and productivity when they do begin breeding. A mature gilt is generally more prepared to handle the physiological stresses associated with pregnancy and lactation, which can enhance the welfare and performance of both the gilt and her piglets.

On the other hand, decreased fertility can arise from both early and late breeding, depending on various factors, so this does not specifically correlate with delaying breeding. Increased growth rate is typically associated with proper nutrition and management rather than simply the timing of breeding. While feed costs might rise if breeding is delayed due to longer feeding periods without producing litters, the focus here is on the potential biological benefits of improving natural immunity when breeding is postponed.