Mr. Joe Burke:

Yes. It is the yield. MII touched on this. The kill-out rate reduces as the season goes on. In addition, as the animal matures, the saleable meat yield from that carcase will not be as high. There will be a higher proportion of bone in those cuts. Having looked at those more mature lambs as the season goes on, the loin and the leg become a little longer but the saleable meat yield from it declines slightly.