Metabolizable energy soybean meal

2,172 views

Published on

Metabolizable energy soybean meal

Published in: Education, Technology
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,172
On SlideShare
0
From Embeds
0
Number of Embeds
9
Actions
Shares
0
Downloads
28
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

Metabolizable energy soybean meal

  1. 1. Metabolizable Energy of Soybean Meal Nick Dale and Amy Batal University of Georgia Department of Poultry Science
  2. 2. Solvent-extracted dehulled soybean meal
  3. 3. Solvent-extracted soybean meal with hulls
  4. 4. Soybean meal contaminated with foreign material
  5. 5. Classical ME Studies Apparent metabolizable energy of soybean meals (SBM) from 1960 to 1962 <ul><li>SBM </li></ul><ul><li>Laboratory 44% Protein 50% Protein Difference </li></ul><ul><ul><ul><ul><ul><li> kcal/kg, 88% DM </li></ul></ul></ul></ul></ul><ul><li>Cornell 2,195 2,474 11.8 </li></ul><ul><li>Connecticut 2,200 2,356 6.9 </li></ul><ul><li>Guelph 2,352 2,542 8.8 </li></ul><ul><li>Average 2,249 2,457 9.2 </li></ul>
  6. 6. True metabolizable energy with nitrogen correction (TME n ) of dehulled soybean meal from 1987 to 1988 <ul><li>TME n </li></ul><ul><li>____________________ </li></ul><ul><li>Laboratory Samples High Low Mean </li></ul><ul><li>________________________________________________________ </li></ul><ul><li>no. -----kcal/kg, 88% DM--- </li></ul><ul><li>Agriculture Canada 29 2,692 2,187 2,421 </li></ul><ul><li>Georgia 10 2,541 2,339 2,438 </li></ul><ul><li>________________________________________________________ </li></ul>
  7. 7. Design of present study <ul><li>23 samples of Soybean meal </li></ul><ul><li>Proximate composition </li></ul><ul><li>TME n with 10 SCWL Roosters </li></ul>
  8. 8. Variation in crude fat between samples is too low to be useful in prediction equation.
  9. 9. Metabolizable energy is negatively correlated with crude fiber.
  10. 10. Prediction Equation: Calculating ME of soybean meal from crude fiber <ul><li>TME n = 3157 – 75 (crude fiber) </li></ul><ul><li>(Dry matter basis), r 2 = 0.61 </li></ul><ul><li>Example: 88% Dry matter </li></ul><ul><li>TME n = 2778 – 66 (crude fiber) </li></ul><ul><li>TME n = 2778 – 66 (4.8) </li></ul><ul><li>TME n = 2461 kcal/kg (1119 kcal/lb) </li></ul>
  11. 11. Overprocessed soybean meal
  12. 12. Effect of overprocessing on the metabolizable energy of SBM Overprocessing has little effect on the ME of soybean meal 3045 b Overprocessed SBM, 39% PS 3171 a Overprocessed SBM, 53% PS 3140 a Overprocessed SBM, 74% PS 3190 a Overprocessed SBM, 83% PS 3123 a Control SBM, 86% PS TME n (kcal/kg) SBM

×