Digestibility of Amino Acids in Protein-Rich Feed Ingredients Originating from Animals, Peanut Flour, and Full-Fat Soybeans Fed to Pigs

Ayodeji Simeon Aderibigbe; Chan Sol Park; Adekunle Adebiyi; Oluyinka Abiona Olukosi; Olayiwola Adeola

doi:10.3390/ani10112062

Digestibility of Amino Acids in Protein-Rich Feed Ingredients Originating from Animals, Peanut Flour, and Full-Fat Soybeans Fed to Pigs

Animals (Basel). 2020 Nov 7;10(11):2062. doi: 10.3390/ani10112062.

Authors

Ayodeji Simeon Aderibigbe¹, Chan Sol Park¹, Adekunle Adebiyi¹, Oluyinka Abiona Olukosi², Olayiwola Adeola¹

Affiliations

¹ Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA.
² Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.

Abstract

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 (p < 0.05), except Pro. The SID of Arg, Ile, and Met was lower (p < 0.05) in EA than BM and BPM. The SID of Trp in BM was greater (p < 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 (p < 0.05) in PF than FFSB. The SID of Lys was greater (p < 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.

Keywords: alternative feedstuff; amino acids; growing pigs; ingredients; protein.