A BRIEF INTRODUCTION TO THE WUFFDA PROGRAM LECTURE AND TURORIAL FOR CHAPTER 23 FEED FORMULATION : SPECIFYING PROPORTIONS POULTRY NUTRITION FUNDAMENTALS

Chapter 23 Section I. INTRODUCTION

FORMULATION PROGRAM ADVANCED CAPABILITIES RATIOS BETWEEN NUTRIENTS & RATIOS BETWEEN INGREDIENTS HOW TO SPECIFY AMINO ACIDS AS A PERCENTAGE OF PROTEIN, THE ENERGY TO PROTEIN RATIO, OR THE CALCIUM TO PHOSPHORUS RATIO? HOW TO SPECIFY INGREDIENT RATIOS, LIKE OYSTER SHELL TO LIMESTONE, OR CONCENTRATE TO FORAGE?

PROPORTIONS BETWEEN NUTRIENT MINIMUMS Chapter 23 Section I I. PROPORTIONS BETWEEN NUTRIENT MINIMUMS

OPEN THE WUFFDA ENGLISH OPEN THE WUFFDA ENGLISH.XLS WORKBOOK OR THE LAST WORKBOOK FROM CHAPTER 22

ADD FISH MEAL, FEATHER MEAL, OYSTER SHELL, METHIONINE, THREONINE AND TRYPTOPHAN TO THE LAST PROBLEM IN CHAPTER 22.

SPECIFY AMINO ACIDS AS A % OF DIET

REMEMBER TO ENTER MAXIMUMS SO THE PROGRAM DOESN’T ASSUME ZERO’S

SOLVE, & PRINT YOUR ANSWERS

ENERGY, PROTEIN, CA, P, LYS AND TSAA ARE ALL AT THEIR REQUIREMENT LEVELS

SPECIFY AMINO ACIDS AS A % PROTEIN

SOLVE, & PRINT YOUR ANSWERS

NUTRIENT LEVELS APPEAR THE SAME, INGREDIENT LEVELS ARE CHANGED SLIGHTLY

CHANGE THE PROTEIN MINIMUM TO 20% WITHOUT CHANGING AMINO ACID REQUIREMENTS

SOLVE, & PRINT YOUR ANSWERS

AMINO ACID REQUIREMENTS AND AMOUNTS SUPPLIED SHOULD CHANGE AUTOMATICALLY WITH PROTEIN LEVEL

EXACT PROPORTIONS BETWEEN NUTRIENTS Chapter 23 Section III. EXACT PROPORTIONS BETWEEN NUTRIENTS

TYPE IN: “Ca:P” IN CELL P2, “2” IN CELL P3 (FOR A 2:1 RATIO), “=I5-($P$3*J5)” IN CELL P5. COPY CELL P5 DOWN COLUMN P

INGREDIENTS WITH MORE CA THAN P SHOULD HAVE A POSITIVE NUMBER, LESS A NEGATIVE NUMBER IN COLUMN P

SET THE MINIMUM AND MAXIMUM FOR Ca:P BOTH TO 0 (ZERO), AND REMOVE THE MINIMUM ON AVAIL. PHOS.

SOLVE, & PRINT YOUR ANSWERS

AVAIL. PHOS. SHOULD STILL BE AT 0 AVAIL. PHOS. SHOULD STILL BE AT 0.45 % DESPITE THERE BEING NO REQUIREMENT SPECIFIED EXCEPT ON THE INGREDIENTS WORKSHEET

CHANGE THE CALCIUM MINIMUM, SOLVE THE PROBLEM AND OBSERVE WHAT HAPPENS TO THE AVAIL. PHOS. LEVEL IN THE SOLUTION

Ca AND AVAIL. PHOS. SHOULD REMAIN IN A 2:1 RATIO

SPECIFYING INGREDIENT CLASS MINIMUMS Chapter 23 Section IV. SPECIFYING INGREDIENT CLASS MINIMUMS

ADD A COLUMN FOR “ANIMAL PRODUCTS” GIVE EACH ONE A VALUE OF 100 (EXCEPT POULTRY GREASE AND OYSTER SHELL)

RESTRICT THE USE OF FEATHER MEAL TO 2 % OF THE FEED

RESTRICT THE USE OF ANIMAL PRODUCTS TO 3 % OF THE FEED

SOLVE, & PRINT YOUR ANSWERS

SOLVE THE PROBLEM WITH 3, 5 AND 7 % ANIMAL PRODUCTS AND NOTE THE INFLUENCE ON FORMULA COST

SPECIFYING INGREDIENT CLASS MINIMUMS Chapter 23 Section IV. SPECIFYING INGREDIENT CLASS MINIMUMS

CHANGE THE NUTRIENT REQUIREMENTS TO A LAYER FEED

SOLVE, & PRINT YOUR ANSWERS

THE SOLUTION HAS ALL LIMESTONE & NO OYSTER SHELL BASED ON COST

ADD COLUMNS FOR PULVERIZED AND COURSE Ca SOURCES ADD “=R5-($T$3*S5)” IN CELL T5. COPY CELL T5 DOWN COLUMN T

SOLVE, & PRINT YOUR ANSWERS

THE SOLUTION HAS HALF LIMESTONE & HALF OYSTER SHELL

FEED FORMULATION : PROPORTIONS PROGRAMMING ANSWER THE QUESTIONS ON PAGE 23-7 TURN IN YOUR PRINTOUTS ANSWERS ON PAGE 23-7