1. A BRIEF INTRODUCTION TO THE WUFFDA PROGRAM
LECTURE AND TURORIAL
FOR CHAPTER 25
FEED FORMULATION : MULTIBLENDING
POULTRY NUTRITION FUNDAMENTALS

2. Chapter 25
Section I.
INTRODUCTION

3. FORMULATION PROBLEM: HOW TO USE A LIMITED AMOUNT OF ONE INGREDIENT?
FORMULATE ALL POSSIBLE DIETS WITH THE INGREDIENT AND COMPARE COSTS?
MULTI-BLEND, ONE PROBLEM WITH ALL THE FEEDS, SOLVING FOR THE LEAST-COST SOLUTION?

4. CHOOSE THE FEEDS AND COSTS TO WORK WITH
Chapter 25
Section I I.
CHOOSE THE FEEDS AND COSTS TO WORK WITH

5. CHOOSE TWO DIETS, PREFERABLY ONES NOT SIMILAR IN PROTEIN AND ENEGRYX X

6. CHOOSE A COST SERIES TO USEX

7. ENTER THE INGREDIENT COMPOSITION FOR YOUR FEEDS

8. ENTER THE NUTRIENT MINIMUMS AND MAXIMUMS FOR THE FEED

9. SOLVE THE PROBLEM

10. CHOOSE THE SENSITIVITY REPORT BEFORE CHOOSING “OK”

11. CALCULATE THE SHADOW PRICE OF POULTRY MEAL AS IN CHAPTER 24
=F10-H10

12. PRINT THE “FEED SPEC” SPREADSHEET & WRITE DOWN THE SHADOW PRICE OF POULTRY MEAL

13. ENTER THE RESULTS IN THE C25 GRAPHING.XLS SPREADSHEET

14. CONTINUE THE PARAMETRIC ANALYSIS AS IN CHAPTER 24, ENTERING DATA IN THE GRAPHING SPREADSHEET AS YOU GO

15. REPEAT THE ANALYSIS FOR THE OTHER FEED, WHEN FINISHED, YOUR CHART SHOULD BE SIMILAR TO THIS. PRINT IT.

16. MULTI-BLENDING: ONE INGRERDIENT INTO TWO FEEDS
Chapter 25
Section III.
MULTI-BLENDING: ONE INGRERDIENT INTO TWO FEEDS

17. BROILER FEED LAYER FEED
FOR THE MULTI-BLENDING PROBLEM, START WITH THE INGREDIENT MATRIX FROM ONE OF YOUR FEEDS & ADD ROWS AND COLUMNS FOR THE OTHER FEED
BROILER FEED
LAYER FEED

18. USE TABLE 25-5 AS A GUIDE
BROILER FEED
LAYER FEED

19. GIVE DIFFERENT SUBSCRIPTS FOR EACH DIET
GIVE DIFFERENT SUBSCRIPTS FOR EACH DIET. IN THIS EXAMPLE (B) WAS USED FOR THE BROILER DIET AND (L) FOR THE LAYER DIET

20. IN THE ‘WEIGHT COLUMN’ (FOR THE ENTIRE MIXTURE) ENTER ‘0
IN THE ‘WEIGHT COLUMN’ (FOR THE ENTIRE MIXTURE) ENTER ‘0.5’ FOR EACH NUTRIENT

21. THE VALUE FOR WEIGHT (A) SHOULD BE ‘1’IN FEED (A) INGREDIENTS AND WEIGHT (B) SHOULD BE ‘1’IN FEED (B) INGREDIENTS

22. ADD A COLUMN NAMED ‘POULTRY MEAL ACTIVITY’ WITH VALUES OF ‘1’ FOR THE POULTRY MEALS, BUT ‘0’ FOR THE OTHER INGREDIENTS

23. ADD THE NUTRIENT RESTRICIONS FOR EACH FEED
ADD THE NUTRIENT RESTRICIONS FOR EACH FEED. ENTERING THESE LIMITS FOR POULTRY MEAL ACTIVITY FIXES IT AT A TOTAL OF 5% IN THE FEEDS

24. SOLVE THE PROBLEM & PRINT YOUR RESULTS

25. ALL THE POULTRY MEAL SHOULD APPEAR IN THE FEEDS, AND ADD UP TO 5%

26. =SUMPRODUCT(C8:C14,E8:E14)/100 =SUMPRODUCT(C15:C21,E15:E21)/100
ADD CALCULATIONS TO TOTAL THE COST OF EACH FEED IN ADDITION TO THE TOTAL FORMULA COST.
=SUMPRODUCT(C8:C14,E8:E14)/100
=SUMPRODUCT(C15:C21,E15:E21)/100

27. NEXT, FORCE 5% POULTRY MEAL INTO THE FEED IT WAS NOT USED IN BEFORE, AND RESOLVE THE PROBLEM.

28. SOLVE THE PROBLEM
PRINT YOUR RESULTS
WRITE A SHORT EXPLAINATION OF YOUR RESULTS
ANSWER THE QUESTIONS IN THE LABORATORY EXERCISES SECTION

29. FEED FORMULATION : PARAMETRIC PROGRAMMING
WRITE A SHORT EXPLAINATION OF YOUR RESULTS AND TURN IT IN WITH YOUR PRINT OUTS.
ANSWER THE QUESTIONS IN THE LABORATORY EXERCISES SECTION.