Digestibility of amino acids in pig diets containing Eurolysine bacterial protein or Pekilo protein, with special reference to a gas chromatographic method used in amino acid determination

Authors

• Matti Näsi Department of Animal Husbandry, University of Helsinki, 00710 Helsinki 71
• Lea Huida Institute of Animal Husbandry, Agricultural Research Centre, 36100 Jokioinen

DOI: https://doi.org/10.23986/afsci.72107

Abstract

The apparent faecal digestibilities of amino acids were determined in growing pigs on diets in which 50% or 100 % soybean meal supplement was replaced by Eurolysine bacterial protein or Pekilo protein. The trial was conducted as two 3X3 Latin squares with six castrated pigs. Compared with the soybean meal supplement, the Eurolysine diet had lower (P < 0.05) digestibilities of arginine, leucine, methionine, phenylalanine and tyrosine. Compared with the Pekilo diet the Eurolysine diet had lower digestibilities (P < 0.05) of alanine, aspartic acid, glutamic acid, glycine, leucine, proline and serine. Lysine digestibility was higher on the Eurolysine diet than on the Pekilo diet. A gas chromatographic method used in amino acid determination is described and evaluated.