Farm Table says:
Performance, carcass traits and costs of Suffolk lambs finishing systems with early weaning and controlled suckling
What is the problem?
The aim of this study was to evaluate the performance, carcass traits and the finishing costs of Suffolk lambs in systems with early weaning and concentrate supplementation on pasture or high quality diet in confinement, from weaning to slaughter, and in system with controlled suckling and high quality diet in feedlot until slaughter.
What did the research involve?
- Suffolk lambs
Performance, carcass traits and finishing costs compared in three systems:
- Weaned with 22kg BW and supplemented on pasture until slaughter (1)
- Weaned with 22kg BW and fed in feedlot until slaughter (2)
- Lambs in controlled nursing after 22kg BW and creep fed until slaughter (3) – separated from lambs every day for 6 hours and kept on pasture.
What were the key findings?
- ADG: 224 g/d (1), 386g/d (2), 481 g/d (3)
- Carcass weights and yields highest for lambs in controlled nursing
- Finishing costs highest in controlled nursing. Lowest in system with weaning in feedlot.
- Weaning in feedlot showed lowest cost per kg carcass.