Aderibigbe Ayodeji Simeon, Park Chan Sol, Adebiyi Adekunle, Olukosi Oluyinka Abiona, Adeola Olayiwola
Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA.
Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
Animals (Basel). 2020 Nov 7;10(11):2062. doi: 10.3390/ani10112062.
Standardized ileal digestibility (SID) of amino acids (AA) in alternative protein sources for growing pigs was determined in this study. Diets containing egg albumen (EA), casein, blood meal (BM), and blood plasma meal (BPM) and a nitrogen-free diet (NFD) were fed to 20 barrows in a quadruplicate 5 × 2 incomplete Latin square design with two periods in experiment 1. The SID of AA was greater in casein than other ingredients ( < 0.05), except Pro. The SID of Arg, Ile, and Met was lower ( < 0.05) in EA than BM and BPM. The SID of Trp in BM was greater ( < 0.05) than EA but not different from BPM. In experiment 2, 20 pigs were fed diets containing peanut flour (PF) or full-fat soybeans (FFSB) or NFD in a randomized complete block design with body weight as a blocking factor but providing six observations for NFD. The SID of Arg, Ileu, Leu, Met, Phe, and Val was greater ( < 0.05) in PF than FFSB. The SID of Lys was greater ( < 0.05) in FFSB than PF. In summary, the test ingredients contain readily digestible AA and could serve as alternative protein sources for growing pigs.
本研究测定了生长猪替代蛋白质来源中氨基酸（AA）的标准化回肠可消化性（SID）。在实验1中，采用重复4次的5×2不完全拉丁方设计，将含蛋清蛋白（EA）、酪蛋白、血粉（BM）和血浆蛋白粉（BPM）的日粮以及无氮日粮（NFD）饲喂给20头公猪，共两个阶段。除脯氨酸外，酪蛋白中氨基酸的SID高于其他成分（P<0.05）。EA中精氨酸、异亮氨酸和蛋氨酸的SID低于BM和BPM（P<0.05）。BM中色氨酸的SID高于EA（P<0.05），但与BPM无差异。在实验2中，采用随机完全区组设计，以体重作为区组因素，将含花生粉（PF）或全脂大豆（FFSB）或NFD的日粮饲喂给20头猪，但NFD提供6个观测值。PF中精氨酸、异亮氨酸、亮氨酸、蛋氨酸、苯丙氨酸和缬氨酸的SID高于FFSB（P<0.05）。FFSB中赖氨酸的SID高于PF（P<0.05）。总之，试验原料含有易消化的氨基酸，可作为生长猪的替代蛋白质来源。
