Effect of torula yeast on weanling pigs
Animal protein sources such as fish meal and plasma protein are commonly used in diets for weanling pigs to improve feed intake and intestinal health. However, due to increased cost and reduced availability, use of animal proteins has decreased and single cell protein is a potential alternative source of amino acids.
Figure 1 - Standardised ileal digestibility (SID) of indispensable
Torula yeast* 100 80
20 40 60
0 Arg His Ile
*Torula yeast (Arbiom Inc., Durham, NC) **Fish meal (Omega Protein, Houston, TX)
Leu Lys Met Trp Val 99 83 74 75 76 76 76 74 96 94 95 95 95 95 86 73 97 84 74 92
BY L. VANESSA LAGOS, CHARMAINE D. ESPINOSA, AND HANS H. STEIN, UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN
Y 16 ▶ WEANING | JUNE 2020
easts and yeast derivatives contain amino acids, mannans, β-glucans, and nucleotides, and may be used as feed additives in pig diets to improve intestinal health and growth performance.
However, yeast can also be used as a feed ingredient because it has a high concentration of digestible amino acids. Torula yeast is a yeast strain that may be grown on wood biomass because it uses xylose and glucose as substrates, which makes it a sustainable alternative protein source for pigs. Torula yeast derived from forestry by-products have been recently developed and is considered a potential sustainable feed ingredient for swine diets because it has lower carbon- footprint than other yeast products. This single-cell protein has an enhanced amino acid profile and recently, three
%
PHOTO: RONALD HISSINK
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40
