Gender should be taken into consideration when developing nutrient recommendations as energy intake and protein deposition between barrows and gilts differ (Figures 4, 5).
Figure 4. Typical daily ME intakes of barrows and gilts between 45 and 310 lb (Adapted from NRC, 2012).
Figure 5. Typical whole-body protein deposition curves in gilts and barrows between 40 and 320 lb (Adapted from NRC, 2012).
Metabolizable energy (ME) intake is greater in barrows in the grow-finish stage versus that of gilts while the protein deposition rates are greater in gilts than barrows.