Indigestible fiber–protein–phytate complexes reduce the feeding value of soy products. We investigated the effects of multienzyme supplement (MES, Victus) on standardized ileal digestibility (SID) of amino acids (AA) and apparent total tract digestibility (ATTD) of energy and minerals in roasted full-fat soybean (FFSB) seeds and expelled-extruded soybean meal (SBM) fed to growing pigs. The crude protein (CP) was 33.4% and 42.8% dry matter (DM) in FFSB seeds and SBM, respectively and corresponding values for crude fat were 17.4% and 11.8% DM. Semi-purified diets with 50% of either FFSB seeds or SBM as the sole source of AA were prepared without or with MES supplying phytase, protease, xylanase, and β-glucanase at 2,200, 8,300, 400, and 100 U/kg of feed, respectively. Diets had TiO₂ as an indigestible marker and the ratio of cornstarch to sucrose and corn oil was identical to calculate DE by the difference method. Eight ileal-cannulated barrows (22.1 ± 0.61 kg) were fed diets in a replicated 4 × 4 Latin square design to give eight replicates per diet. The period lasted for 9 d: 5 d for acclimation, 2 d for fecal, and 2 d for ileal digesta samples. There was no (P > 0.05) interaction between soy type and MES or MES effect on SID of AA; SBM had higher (P < 0.05) SID of CP, His, Leu, and Lys. There was no (P > 0.05) interaction between soy type and MES on energy digestibility. The FFSB seeds had higher ATTD of gross energy (GE, 80.2% vs. 76.6%; P < 0.01) than SBM. Pigs fed MES had higher (P < 0.05) ATTD of DM (91.3% vs. 87.7 %), GE (87.5% vs. 82.4%), CP (86.4% vs. 82.9%), crude fat (70.6% vs. 54.9%), Ca (63.2% vs. 60.2%), and P (67.5% vs. 63.2%). In conclusions, differences on AA and energy digestibility in soy products could be linked to processing and compositional differences. Although MES had no effect on SID of AA, the effects on the utilization of minerals and energy demonstrated the value of fiber-degrading enzymes, protease, and phytase in improving the nutritive value of soy products independent of processing.

中文翻译：

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饲喂生长或不饲喂含有纤维降解酶，蛋白酶和植酸酶的多酶补充饲料的成年猪的全脂烤大豆和膨化膨化豆粕中氨基酸，能量和矿物质的消化率。

难消化的纤维-蛋白质-肌醇六磷酸复合物降低了大豆产品的摄食价值。我们研究了多酶的补充（的影响MES，标准化回肠消化率（Victus）SID氨基酸（中）AA）和表观总消化率（ATTD能源）和矿物质，烤全脂大豆（全脂大豆），种子和expelled-膨化的豆粕（SBM）喂给成长中的猪。粗蛋白（CP）为33.4％和42.8％干物质（DM）分别在FFSB种子和SBM中得到，粗脂肪的相应值分别为17.4％和11.8％DM。半精制日粮以FFSB种子或SBM的50％作为AA的唯一来源，在不添加或添加MES分别以2,200、8,300、400和100 U / kg饲料提供植酸酶，蛋白酶，木聚糖酶和β-葡聚糖酶的情况下进行制备， 分别。日粮中以TiO ₂为难消化的指标，玉米淀粉与蔗糖和玉米油的比例相同，可以通过差值法计算出DE。用重复的4×4拉丁方形设计喂养八只回肠空心公猪（22.1±0.61 kg），每份日粮重复八次。持续时间为9天：驯化5天，粪便2天，回肠消化物样品2天。没有（P> 0.05）大豆类型与MES之间的相互作用或MES对AA的SID的影响; SBM的CP，His，Leu和Lys的SID较高（P <0.05）。大豆类型和MES在能量消化率上没有（P > 0.05）相互作用。FFSB种子的总能量ATTD高于SBM（GE分别为80.2％和76.6％；P <0.01）。MES饲喂的猪较高（P<0.05）DM的ATTD（91.3％对87.7％），GE（87.5％对82.4％），CP（86.4％对82.9％），粗脂肪（70.6％对54.9％），Ca（63.2％ vs. 60.2％）和P（67.5％vs. 63.2％）。总之，豆制品中AA和能量消化率的差异可能与加工和成分差异有关。尽管MES对AA的SID没有影响，但是对矿物质和能量利用的影响证明了纤维降解酶，蛋白酶和植酸酶在提高大豆产品营养价值方面的价值，而与加工无关。