Effects of specialty proteins as alternatives to bovine or porcine spray-dried plasma in non-medicated diets fed to weaned pigs housed in an unsanitary environment

Crenshaw, J. D.; Campbell, J. M.; Polo, J.; Stein, H. H.

As in Exp. 1, performance differences were not detected between non-SDBP diets in Exp. 2. The level of 0.4% APP used in the APP and CB diets were based on supplier recommendations at the time of the experiment. Both diets containing APP resulted in lower performance than the SDBP diet and no performance differences compared to SPC, EHSY, or IEGG. One publication has indicated improved growth of pigs provided 0.30% APP in nursery diets but only in the early post-weaning period . The diet with a combination Translate basic science to industry innovation of EHSY, APP, and fish meal was designed to provide a complex mixture of plant and animal proteins with 0.40% APP to compare against 0.40% APP and 7.49% SPC. However, performance of pigs fed the CB diet did not differ from any of the non-SDBP diets and resulted in inferior performance compared to the SDBP diet. This observation is consistent with data indicating that PRRSV positive pigs fed a nursery diet regimen containing combinations of SPC, egg/fish pepton, highly processed poultry protein, yeast culture, and other feed additives had lower ADG and BW and higher mortality at the end of the nursery period (d 49 post-weaning) compared with pigs fed a less complex nursery diet regimen containing SDBP (Crenshaw et al., 2017) .