261 Effects of soy Protein Concentrate Replacing Animal Protein Supplements on Modulation of Mucosa-Associated Microbiota in Relation to Intestinal Health of Nursery Pigs

Abstract This study aimed to investigate the effects of soy protein concentrate (SPC) replacing animal supplements on modulation mucosa-associated microbiota in relation intestinal health nursery pigs. Weaned pigs (n = 56; 6.4 ± 0.6 kg BW) were allotted 5 treatments a randomized complete block design (RCBD) with initial BW and sex as blocks fed for 35 d 3 phases (P1/2/3 10/12/13 d, respectively). Dietary NC 12): diet fish meal 4/2/1%, poultry 10/8/4%, blood plasma 4/2/1% P1/2/3, respectively; RFM SPC meal; RPM RBP plasma, PC 8): all supplements. All diets formulated meet nutrient requirements by NRC (2012). On 35, euthanized collect jejunal mucosa evaluate microbiota. increased (P < 0.05) Lactobacillaceae (1.04 8.15%), tended increase 0.073) Prevotellaceae (7.48 18.94%), whereas it decreased Chao1 index (81.3 15.8), Helicobacteraceae (27.95 3.02), reduce 0.099) Campylobacteraceae (2.95 0.13). 0.090) 17.16%) reduced 11.02%) without affecting Chao 1. Decreased 1 was correlated feed intake therefore, weight gain In conclusion, use proteins benefited composition microbiota, reduced. The only meal, however, benefitted