An experiment was performed to evaluate the energy contents of extruded-expelled soybean meal (EESBM) and the effects of thermal treatment on energy utilization in growing pigs. Eighteen growing barrows (18.03 ± 0.61 kg initial body weight) were individually housed in metabolism crates and randomly allotted to one of three dietary treatments to give six replicates per treatment. The three experimental diets were: a corn-soybean meal-based basal diet and two test diets with simple substitution of a basal diet with intact EESBM or heat-treated EESBM in a 70:30 ratio. Intact EESBM was autoclaved at 120°C for 60 mins to make heat-treated EESBM (heat-EESBM). Pigs were fed the experimental diets for 16 d, including 10 d for adaptation and 6 d for total collection of feces and urine. Pigs were then moved into indirect calorimetry chambers to determine 24-h heat production and 12-h fasting heat production. The energy contents of the tested DESBM were calculated by using the difference method. All data were analyzed using the Mixed procedure of SAS with the individual pig as the experimental unit. Pigs fed heat-EESBM diets showed lower (P < 0.05) apparent total tract digestibility of dry matter (DM), gross energy, and nitrogen than those fed intact EESBM. A trend (P < 0.10) was observed for greater heat increments in pigs fed intact EESBM than those fed heat-EESBM. This resulted in intact EESBM having greater (P < 0.05) digestible energy (DE) and metabolizable energy (ME) contents than heat-EESBM but comparable net energy contents between intact and heat-EESBM. In conclusion, respective values of DE, ME, and net energy are 4,591 kcal/kg, 4,099 kcal/kg, and 3,242 kcal/kg on a DM basis. However, thermal damage during EESBM production should be considered in terms of DE and ME content of EESBM fed to growing pigs.

中文翻译：

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PSII-20 用于生长猪的热处理和完整挤压挤压豆粕的能量评估

进行了一项实验，以评估挤压膨化豆粕 (EESBM) 的能量含量以及热处理对生长猪能量利用的影响。将 18 只生长中的手推车（初始体重 18.03 ± 0.61 千克）单独饲养在新陈代谢板条箱中，并随机分配到三种饮食治疗中的一种，每次治疗重复 6 次。三种实验日粮是：以玉米-豆粕为基础的基础日粮和两种试验日粮，以 70:30 的比例简单地用完整 EESBM 或热处理 EESBM 替代基础日粮。完整的 EESBM 在 120°C 下高压灭菌 60 分钟以制备热处理 EESBM (heat-EESBM)。给猪喂食实验日粮16 d，其中10 d适应期，6 d收集粪便和尿液。然后将猪移入间接量热室以确定 24 小时产热和 12 小时禁食产热。使用差分法计算测试DESBM的能量含量。使用SAS的混合程序分析所有数据，以个体猪为实验单位。与饲喂完整 EESBM 日粮相比，饲喂热 EESBM 日粮的猪表现出较低的（P < 0.05）干物质（DM）、总能量和氮的表观全消化道消化率。观察到喂食完整 EESBM 的猪比喂食加热 EESBM 的猪的热量增量更大的趋势 (P < 0.10)。这导致完整 EESBM 的消化能 (DE) 和代谢能 (ME) 含量高于 (P < 0.05) 热量 - EESBM，但完整和热量 - EESBM 之间的净能量含量相当。总之，DE、ME、在干物质的基础上，净能量分别为 4,591 kcal/kg、4,099 kcal/kg 和 3,242 kcal/kg。然而，EESBM 生产过程中的热损伤应根据饲喂生长猪的 EESBM 的 DE 和 ME 含量来考虑。