Ractopamine_presentation

Conclusions all pigs fed rac had an increase in final

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Conclusions All pigs fed RAC had an increase in final BW and HCW 18 g/ton RAC had decreased fat depth (7.9%) and increased loin depth (8.5%) compared to the control treatment 18 g/ton RAC had increased loin depth compared to 4.5 g/ton RAC Actual lean mass increases as Paylean increases from 4.5 to 18 g/ton
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Implications As the level of RAC was increased in the diet, growth performance and carcass traits were improved with a four week feeding program However, 85% of the increase in ADG and F:G in all 3 genotypes were observed at the 4.5 g/ton RAC level
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1. If pigs are close to optimal percent lean Feed 4.5 g/ton level, target pigs for 20-28 d on Paylean, increase lysine by 35% the first two weeks and 20-25% the second two weeks.
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2. To increase the lean percentage Feed 4.5 g for approximately 2-1/2 weeks and 9 g/ton for 2-1/2 weeks. Increase lysine by 35% for the first phase and 25-30% the second phase.
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  • Spring '08
  • Staff
  • RAC, false ribs, live weight, Weight (kg)

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