Effects of Feeding Increasing Levels of HP 300 on Nursery Pig Performance

Weaned pigs (n=1,215; 337 × 1050 PIC, Hendersonville, TN; initially 5.1kg) were used in a 43-d growth trial to determine the effects of feeding increasing levels of enzymatically treated soybean meal (HP 300) on nursery pig performance. Pigs were weaned at approximately 16 to 19 d of age, weighed and allotted by BW to 1 of 5 dietary treatments in a randomized complete block design and placed in pens with 27 pigs/pen and 9 pens/treatment. Diets were fed in two phases (d 0 to 7 and d 7 to 22), followed by a common phase 3 diet fed from d 22 to 43. Treatments included a control diet that was corn-SBM-based with 7.5% and 5.6% fish meal in phase 1 and 2, respectively; 3 diets formulated to contain increasing HP 300 (Hamlet Protein, Findlay, OH) ranging from 6.7 to 20% in phase 1, and 5 to 15% in phase 2 with equal increases in HP 300 and reductions in fish meal and soybean meal between treatments. A fifth treatment that had the same amount of SBM as the fish meal-control diet, but with HP 300 replacing fish meal on an equal SID Lys basis was included. From d 0 to 22 (treatment period), ADG, ADFI, and d 22 BW decreased (linear, P