title: [The prececal and total intestinal nutrient digestibility and amino acid absorption of food yeasts in swine].
abstract: In a difference experiment the apparent precaecal (pc) and total intestinal (tot) nutrient digestibility and amino acid (AA) absorption of 5 yeasts (n-alkane yeasts Fermosin and Paprin, molasses/molasses distillers residue yeast, two sulfite waste liquor yeasts) were studied. The two n-alkane yeasts were very highly digested pc, the difference to tot digestibility is only small in most cases. In contrast to this, the pc and tot digestibility values of molasses/molasses distillers residue yeast differed considerably more. The probable reason for this is too hot drying due to which pc digestibility, particularly of the crude protein, and pc AA absorption are considerably reduced. In the two sulfite waste liquor yeasts, sulfite waste liquor residues containing lignin impair especially the crude carbohydrate digestibility and the energetic feed value; the better processing conditions of origin A, however, reduced considerably the negative effects. The results confirm that each yeast origin has its specific particularities, which have to be taken into consideration when they are used in feeding.
authors.affiliation: Akademie der Landwirtschaftswissenschaften der DDR Forschungszentrum für Tierproduktion Dummerstorf-Rostock Bereich Tierernährung Oskar Kellner.
authors.forename: T
authors.initials: T
authors.lastname: Heinz
authors.forename: U
authors.initials: U
authors.lastname: Hennig
authors.forename: J
authors.initials: J
authors.lastname: Wünsche
authors.forename: G
authors.initials: G
authors.lastname: Henk
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D000821:Animal Feed; D000818:Animals; D004040:Dietary Carbohydrates / Q000378:metabolism; D004041:Dietary Fats / Q000378:metabolism; D004044:Dietary Proteins / Q000378:metabolism; D004063:Digestion; D004734:Energy Metabolism; D005260:Female; D007408:Intestinal Absorption; D008297:Male; D008965:Molasses; D013552:Swine / Q000378:metabolism*; D015002:Yeast, Dried / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D004040:Dietary Carbohydrates; D004041:Dietary Fats; D004044:Dietary Proteins; C059788:paprin; C027536:fermosin
vernacular_title: Untersuchungen zur präzäkalen und gesamtintestinalen Nährstoffverdaulichkeit und Aminosäurenresorption von Futterhefen beim Schwein.