声明
ABBREVIATIONS
CHAPTER 1. REVIEW LITERATURE INTRODUCTION
1.1Biological functions of phosphorus
1.1.1 Bone formation
1.1.2 Cell metabolism
1.1.3 Genetic message transportation
1.2 Phosphorus utilization
1.3 Digestive system of chickens
1.4 Phosphorus sources
1.4.1 Plant-based sources
1.4.2 Animal-based sources
1.4.3 Inorganic sources
1.5 Phosphorus digestion and absorption
1.6 Apparent and true ileal digestibility of phosphorus
1.6.1 Apparent ileal digestibility
1.6.2 True ileal digestibility
1.7 The methods used to conclude the true ileal digestibility of phosphorus
1.7.1 The phosphorus-free diet
1.7.2 Isotope dilution method
1.7.3 The difference and direct method
1.7.4 The linear regression method
1.8 Dietary factors affect the phosphorus digestibility
1.8.1 Calcium to phosphorus ratio
1.8.2 Vitamin D
1.8.3 Phytate-phosphorus content
1.8.4 Phytase
1.9Objective of the current study
CHAPTER 2. EFFECTS OF DIETARY CALCIUM-TO-PHOSPHORUS RATIOS ON THE DETERMINATION OF TRUE PHOSPHORUS DIGESTIBILITY FOR BROILER CHICKENS
2.1 Abstract
2.2 Introduction
2.3 Methodology
2.3.1 Birds management and experimental diets
2.3.2 Sample collection
2.3.3 Chemical analyses
2.3.4 Calculations and statistical analyses
2.4 Results
2.5 Discussion
CHAPTER 3. DIETARY TOTAL PHOSPHORUS CONCENTRATION AFFECTS THE ESTIMATES OF TRUE PHOSPHORUS DIGESTIBILITY FOR BROILER CHICKENS
3.1 Abstract
3.2 Introduction
3.3 Methodology
3.3.1 Birds management and experimental diets
3.3.2 Sample collection
3.3.3 Chemical analyses
3.3.4 Calculations and statistical analyses
3.4 Results
3.5 Discussion
CHAPTER 4. EFFECTS OF DIETARY TOTAL PHOSPHORUS CONCENTRATION AND CASEIN SUPPLEMENTATION ON THE DETERMINATION OF TRUE PHOSPHORUS DIGESTIBILITY FOR BROILER CHICKENS
4.1 Abstract
4.2 Introduction
4.3 Methodology
4.3.1 Birds management and experimental diets
4.3.2 Sample collection
4.3.3Chemical analyses
4.3.4 Calculations and statistical analyses
4.4 Results
4.5 Discussion
CHAPTER 5. TRUE PHOSPHORUS DIGESTIBILITY RESPONSE OF BROILER CHICKENS TO DIETARY CRUDE PROTEIN LEVELS
5.1 Abstract
5.2 Introduction
5.3 Methodology
5.3.1Birds management and experimental diets
5.3.2 Sample collection
5.3.3 Chemical analyses
5.3.4 Calculations and statistical analyses
5.4 Results
5.5 Discussion
CONCLUSION
致谢
参考文献
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