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  • Title: Effects of fermented soybean meal and specialty animal protein sources on nursery pig performance.
    Author: Jones CK, DeRouchey JM, Nelssen JL, Tokach MD, Dritz SS, Goodband RD.
    Journal: J Anim Sci; 2010 May; 88(5):1725-32. PubMed ID: 20081076.
    Abstract:
    In 2 experiments, 602 pigs were used to evaluate the effects of fish meal, fermented soybean meal, or dried porcine solubles on phase 2 nursery pig performance. In Exp. 1, nursery pigs (n = 252; PIC TR4 x 1050; 6.8 kg initial BW and 7 d after weaning) were fed: 1) a control diet containing no specialty protein sources and the control diet with 2) 5% fish meal, 3) 3.5% dried porcine solubles, 4) 6.0% fermented soybean meal, 5) a combination of 1.75% fermented soybean meal and 1.75% dried porcine solubles, or 6) a combination of 3.0% fermented soybean meal and 2.5% fish meal. There were 7 replications with 6 pigs per pen. Experimental diets were fed for 14 d, and then all pigs were fed a common diet without specialty protein sources for 14 d. From d 0 to 14, pigs fed dried porcine solubles alone or with fermented soybean meal had improved (P < 0.05) ADG and G:F compared with pigs fed all other diets. Overall (d 0 to 28), pigs fed dried porcine solubles had improved (P = 0.01) ADG (421 vs. 383 g) and G:F (0.77 vs. 0.73) compared with pigs fed the control diet and had improved (P = 0.03) G:F (0.77 vs. 0.74) compared with pigs fed the combination of fermented soybean meal and fish meal. In Exp. 2, nursery pigs (n = 350; PIC C22 x 1050; 6.1 kg initial BW and 7 d after weaning) were fed 1) a control diet containing no specialty protein sources and the control diet with 2) 3% fish meal, 3) 6% fish meal, 4) 3.75% fermented soybean meal, 5) 7.50% fermented soybean meal, 6) a combination of 1.88% fermented soybean meal and 1.88% dried porcine solubles, or 7) a combination of 3.75% fermented soybean meal and 3.75% dried porcine solubles. There were 10 replications with 5 pigs per pen. Experimental diets were fed from d 0 to 14, and then all pigs were fed a common diet without specialty protein sources for 21 d. From d 0 to 14, pigs fed increasing fish meal had increased (quadratic, P = 0.05) ADFI. Pigs fed increasing fermented soybean meal had improved (quadratic, P = 0.01) G:F. Pigs fed the combination of fermented soybean meal and dried porcine solubles had improved (P < 0.05) ADG and G:F compared with pigs fed diets containing fish meal and had improved (P < 0.05) ADG and ADFI compared with pigs fed diets containing fermented soybean meal. Overall (d 0 to 35), pigs fed diets with increasing amounts of fermented soybean meal had improved (quadratic, P = 0.03) G:F. Feeding nursery pigs diets containing dried porcine solubles, either alone or in combination with fermented soybean meal, can improve growth performance compared with those fed high concentrations of soybean meal or fish meal.
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