Table 4.
Results for Exp. 1 comparing performance of weaned pigs housed in unsanitary pens and fed non-medicated diets with different levels of activated porcine plasma or spray-dried porcine plasma1
Dietary treatments | P-value | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Item | Day | SPC | 2.50% SDPP | 5.00% SDPP | 0.17% APP | 0.33% APP | 1.0% APP | SED | T | D | T × D |
BW, kg | 1 | 6.45 | 6.48 | 6.45 | 6.44 | 6.45 | 6.49 | 0.25 | 0.0024 | < 0.0001 | 0.0476 |
7 | 6.66c | 7.15ab | 7.31a | 6.58c | 6.74bc | 6.76bc | |||||
15 | 8.41c | 9.01ab | 9.27a | 8.18c | 8.25c | 8.55bc | |||||
21 | 11.07b | 11.63a | 11.31ab | 11.07b | 10.87b | 11.10b | |||||
28 | 14.95b | 15.61a | 15.35ab | 15.12ab | 14.96b | 15.11b | |||||
ADG, g | 7 | 29c | 96b | 123a | 20c | 42c | 39c | 13.6 | < 0.0001 | < 0.0001 | < 0.0001 |
15 | 130b | 169a | 188a | 116b | 120b | 138b | |||||
21 | 220b | 245a | 232ab | 221ab | 211b | 221ab | |||||
28 | 303 | 326 | 318 | 310 | 304 | 308 | |||||
ADFI, g | 7 | 99b | 169a | 180a | 95b | 101b | 101b | 14.0 | < 0.0001 | < 0.0001 | < 0.0001 |
15 | 197b | 242a | 254a | 185b | 185b | 195b | |||||
21 | 329b | 363a | 346ab | 329b | 326b | 330b | |||||
28 | 439b | 480a | 463ab | 454ab | 444b | 444b | |||||
G:F | 7 | 0.270bc | 0.574a | 0.682a | 0.186c | 0.354b | 0.346b | 0.056 | 0.0019 | < 0.0001 | < 0.0001 |
15 | 0.668ab | 0.695ab | 0.739a | 0.629b | 0.649ab | 0.702ab | |||||
21 | 0.669 | 0.677 | 0.668 | 0.668 | 0.644 | 0.668 | |||||
28 | 0.692 | 0.680 | 0.687 | 0.684 | 0.686 | 0.695 |
Within row, means with uncommon superscripts differ (P < 0.05).
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 = spray-dried 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.