Fermented soybean meal as a vegetable protein source for nursery pigs: I. Effects on growth performance of nursery pigs

Abstract

Four experiments were conducted using 671 nursery pigs to evaluate fermented soybean meal (FSBM) as a new vegetable protein source for nursery pigs. In Exp. 1, a total of 192 pigs weaned at 19.2 +/- 0.3 d of age were fed 3 diets (8 pens per treatment) for 2 wk: a control diet (without FSBM) and 2 diets with 3 and 6% FSBM replacing soybean meal, followed by a common diet for the next 2 wk. In Exp. 2, a total of 160 pigs weaned at 21.6 +/- 0.2 d of age were fed 4 diets (5 pens per treatment) for 2 wk: a control diet (without FSBM but with 25% dried skim milk; DSM) and 3 diets with 3, 6, and 9% FSBM replacing DSM based on CP. Concentrations of CP, Lys, Met, Thr, and Trp were kept consistent among diets in Exp. 1 and 2. In Exp. 3, a total of 144 pigs weaned at 22.1 +/- 0.2 d of age were fed 3 diets (6 pens per treatment) for 2 wk: a control diet (without FSBM but with 40% DSM) and 2 diets with 5 and 10% FSBM replacing DSM based on CP. Concentrations of CP, Lys, Met, Thr, Trp, and lactose were kept consistent among diets. In Exp. 4, a total of 175 pigs weaned at 20.7 +/- 0.4 d of age were fed 5 diets (5 pens per treatment) for 3 wk: a basal diet [15.5% CP without plasma protein (PP) and FSBM], 2 diets (18.4% CP) with 3.7% PP or 4.9% FSBM, and 2 diets (21.2% CP) with 7.3% PP or 9.8% FSBM. Concentrations of Lys, Met, Thr, and Trp were kept consistent among diets with the same CP concentrations. Pigs had access to feed and water ad libitum and their BW and feed intake were measured weekly for all experiments. Use of up to 6% FSBM replacing soybean meal improved (P < 0.05) G:F and diarrhea scores of nursery pigs (Exp. 1). Use of up to 9% FSBM replacing DSM reduced (P < 0.05) ADG and G:F (Exp. 2). When lactose concentrations were equal, FSBM could replace up to 10% DSM without adverse effects on ADG and G:F (Exp. 3). Relative bioavailability of protein in FSBM to PP was 99.1% (Exp. 4). Collectively, FSBM can serve as an alternative protein source for nursery pigs at 3 to 7 wk of age, possibly replacing the use of DSM and PP but excluding the first week postweaning for PP when balancing for AA and lactose.

Effects of Different Levels of Fermented Oat on Growth Performance, Nutrientdigestibility, Diarrhea Incidence, Fecal Microorganisms and Emission Gas in Weaned Pigs

“…Cho et al (2007) reported that piglets fed fermented soya beans showed increased feed efficiency. The study of Kim et al (2010) also documented that during nursery pigs at 3 to 7 wk of age, a significant increase of ADG and ADFI were observed in treatments fed fermented soybean meal. Furthermore it can serve as an alternative protein source for possibly replacing the use of dried skim milk and plasma protein.…”

Energy and Ileal Digestible Amino Acid Concentrations for Growing Pigs and Performance of Weanling Pigs Fed Fermented or Conventional Soybean Meal

“…Concentrations of digestible energy (DE) and metabolizable energy (ME) may also be affected by fermentation (Rojas and Stein, 2013). Consequently, FSBM may be used to replace other high quality protein sources without adversely affecting the performance of nursery pigs (Kim et al, 2010). …”

Effect of soybean meal fermented with Bacillus subtilis BS12 on growth performance and small intestinal immune status of piglets

“…A previous study by Feng et al (2007) showed that FSBM with a low concentration of glycinin and β-conglycinin could improve feed intake and average daily weight in piglets. However, a diet containing only 9% FSBM with a 40% reduction in glycinin and β-conglycinin did not improve the growth performance of weaned pigs (Kim, Van Heugten, Ji, Lee, & Mateo, 2010). Thus, highly efficient allergen degradation strains are essential in the creation of FSBM, in order to improve animal growth performance.…”