利用热效率评估去皮挤压豆粕相对于去皮溶剂浸出豆粕的净能值及其对保育猪生长性能的影响。
Using caloric efficiency to estimate the net energy value of expelled, extruded soybean meal relative to dehulled, solvent-extracted soybean meal and its effects on growth performance of nursery pigs.
作者信息
Blomme Allison K, Wecker Haley K, Tokach Mike D, Woodworth Jason C, Stark Charles R, Paulk Chad B
机构信息
Department of Grain Science and Industry, College of Agriculture, Kansas State University, Manhattan, KS 66506, USA.
Department of Animal Science and Industry, College of Agriculture, Kansas State University, Manhattan, KS 66506, USA.
出版信息
Transl Anim Sci. 2022 Jan 15;6(1):txac003. doi: 10.1093/tas/txac003. eCollection 2022 Jan.
This study aimed to estimate the net energy (NE) value of expelled, extruded soybean meal (MSBM) relative to dehulled, solvent-extracted soybean meal (SSBM) and determine its effects on growth performance of late nursery pigs. A total of 297 pigs (DNA 241 × 600) were weaned (BW 5.10 kg) and placed into 60 pens (2 rooms of 30 pens) with 5 pigs per pen balanced by gender and weaning weight. Pigs were fed a common diet for 21 d. Then, pens of pigs (BW 9.3 kg) were randomly assigned to one of five treatments to provide 12 replications per treatment. Treatments consisted of increasing amounts of MSBM replacing SSBM in the diet (0%, 25%, 50%, 75%, and 100%). All diets were fed for 28 d and were formulated to 1.30% standardized ileal digestible lysine and met or exceeded requirements for amino acids, calcium, and phosphorus. The SSBM diet was formulated to 2,421 kcal/kg and NE was not balanced between diets. Analyzed values for CP, EE, CF, and total lysine for the SSBM were 47.28%, 0.47%, 3.80%, and 3.00%, whereas the MSBM contained 47.41%, 6.88%, 5.32%, and 2.99%, respectively. The MSBM had increased values for KOH solubility and trypsin inhibitor (83.62% and 7,026 TIU/g) compared to the SSBM (73.05% and 3,011 TIU/g), whereas urease activity was similar between the two (0.03 and 0.02 Δ pH, respectively). Data were analyzed using Proc GLIMMIX (SAS 9.4; Cary, NC) with pen as the experimental unit and room as the blocking factor. There was no evidence of differences in ADG and ADFI in pigs fed diets with increasing concentrations of MSBM. Pigs fed diets with increasing concentrations of MSBM had improved (linear, < 0.001) G:F and caloric efficiency on an NE basis. Using caloric efficiency to estimate NE of the MSBM relative to SSBM, MSBM was estimated to have a value of 2,566 kcal/kg. In conclusion, MSBM contains approximately 123% of the energy of SSBM, which improved feed efficiency when fed to nursery pigs.
本研究旨在评估膨化大豆粕（MSBM）相对于去皮溶剂浸出大豆粕（SSBM）的净能（NE）值，并确定其对保育后期仔猪生长性能的影响。总共297头猪（DNA 241×600）断奶（体重5.10千克）后，放入60个猪栏（2个房间，每个房间30个猪栏），每个猪栏5头猪，按性别和断奶体重进行平衡。猪先饲喂普通日粮21天。然后，将猪栏中的猪（体重9.3千克）随机分配到五种处理之一，每个处理设12个重复。处理包括在日粮中用逐渐增加的MSBM替代SSBM（0%、25%、50%、75%和100%）。所有日粮饲喂28天，日粮配方设定为含1.30%的标准回肠可消化赖氨酸，满足或超过氨基酸、钙和磷的需求。SSBM日粮配方设定为2421千卡/千克，日粮间NE未平衡。SSBM的粗蛋白（CP）、粗脂肪（EE）、粗纤维（CF）和总赖氨酸的分析值分别为47.28%、0.47%、3.80%和3.00%，而MSBM分别为47.41%、6.88%、5.32%和2.99%。与SSBM（73.05%和3011抗胰蛋白酶单位/克）相比，MSBM的氢氧化钾溶解度和胰蛋白酶抑制剂值增加（分别为83.62%和7026抗胰蛋白酶单位/克），而两者的脲酶活性相似（分别为0.03和0.02ΔpH）。数据采用Proc GLIMMIX（SAS 9.4；北卡罗来纳州卡里）进行分析，以猪栏作为实验单位，房间作为区组因素。没有证据表明饲喂MSBM浓度增加日粮的猪在平均日增重（ADG）和平均日采食量（ADFI）上存在差异。饲喂MSBM浓度增加日粮的猪在NE基础上的料重比（G:F）和能量效率得到改善（线性，<0.001）。利用能量效率来估计MSBM相对于SSBM的NE，估计MSBM的值为2566千卡/千克。总之，MSBM所含能量约为SSBM的123%，饲喂保育仔猪时可提高饲料效率。
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