ABSTRACT

As a means of shedding light on the influence of exogenous enzymes on the utilization of agro- industrial by products in poultry ration, palm kernel meal and breweries dried grain based diets were supplemented with Roxazyme- G enzyme and subsequently fed to male turkey poultry for 8 weeks. Roxazyme- G• significantly (P<O.05) influenced the mean daily weight gain and feed — to- gain ratio but not mean daily feed intake .The edible parts expressed as percent live weight and cut parts were not significantly (p>O.05) influenced except the drumstick. Enzyme supplem mentation also significantly(P<O.05) brought a decrease in the Erythocyte sedimentation rate (ESR) and the percent packed cell volume (pcv) of the poults. Congestion of central veins and degeneration of the hepatocytes were also noted in poults fed diets 2,3 and 4. There were no significant differences (p>O.05) in the percentage of the calcium and phosphorus elements in the bones of the experimental birds. Data from the study also showed that bone length was significantly (P<O.05) shorter in poultry fed diet I than in those fed diets 2,3 and 4. Economic data revealed that cost kg feed (N) was cheapest in diets 1 followedby diet 3 which gave the best weight gain (44.67g) and feed- to-gain ration (1.72). Poultry feed diet 3 also showed a significant (p<O.05) high gross margin than the. other feed diets. Since farmers always aim at maximizing profit at reduced cost of production diet 3 could be the best option for raising male turkey poults, followed by diet 2.ln other words, supplementing these diets with roxazyme G enzyme may not convey any tangible economic benefit to a producer. For now more research work may thus be required.

TABLOF CONTENTS

TITLE PAGE

CERTIFICATE

DEDICATION

ACKNOWLEDGEMENT

ABSTRACT

TABLE OF CONTENT

LIST OF TABLES

CHAPTER ONE

1.0 INTRODUCTION

CHAPTER TWO *

2.0 LITERATURE REVIEW 3

2.1 POULTRY FEED (CONVENTIONAL AND UNCONVENTIONAL) 3

2.2 FEED ENZYMES 3

2.3 TURKEY PRODUCTION 4

2.4 THE PROBLEM WITH CEREALS IN POULTRY FEEDS 7

2.5 THE PROBLEM OF VEGETABLE PROTEIN IN POULTRY FEED 8

2.6 ROLES OF FEED ENZYMES 10

2.7 CHARACTERISTICS OF FEED ENZYMES 11

2.8 THE ADVANTAGES OF FEED ENZYMES TO THE FEED

PRODUCER 12

2.9 THE ADVANTAGES OF FEED ENZYMES TO THE POULTRY

PRODUCER 12

2.91 THE ADVANTAGES OF FEED ENZYMES TO THE ENVIRONMENt13

2.92 ENZYME ACTIVITIES, APPLICATION AND SAFETY 13

2.93 FEED ENZYMES AND NUTRIENT DIGESTION 13

2.94 ROXAZYME, G: A PROMISING FEED ENZYME 13

CHAPTER THREE

3.0 MATERIALS AND METHODS 14

3.1 DIET FORMULATION AND ENZYME SUPPLEMENT 14

3.2 MANAGEMENT OF MALE TURKEY POULT AND DATA

COLLECTION 14

3.3 ORGAN PROPORTION AND CARCASS COMPOSITION 14

3.4 ECONOMIC ANALYSIS 15

3.5 STATISTICAL ANALYSIS 15

CHAPTER FOUR

4.0 RESULTS AND DISCUSSION 16

CHAPTER FIVE

CONCLUSION AND RECOMMENDATION 19

REFERENCES

APPENDIX