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.

Pigs fed SDBP had increased (P < 0.05) BW, ADG, and ADFI at d 7 and 14 compared with pigs fed all other diets. Average BW, ADG, and ADFI at d 7 and 14 did not differ among diets that did not contain SDBP. Some dietary treatments had G:F means at d 7 that were negative, therefore G:F results for d 7 are not reported. Gain:feed did not differ significantly among diets at d 14. 1 Values are least squares cumulative performance data means for 11 pens per dietary treatment (T) analyzed using a mixed model for repeated measures of treatment (T), day of experiment (D), and treatment × day of experiment (T × D) as fixed effects, block and replication as random effects, and replication within block as sub-type for repeated measures. Experimental diets were: SPC = soy protein concentrate at 8.04% of diet (Soycomil P, ADM Alliance Nutrition, Quincy, IL); SDPP = spraydried porcine plasma at 2.50 or 5.00% of diet (AP920, APC Inc., Ankeny, IA); APP = activated porcine plasma at 0.17, 0.33, or 1.00% of diet (betaGRO, NutriQuest, Mason City, IA). Experimental diets were non-medicated and fed the initial 15 d of the experiment, followed by a common phase 2 diet for all pigs fed d 15 to 28.