About Book

The dramatic gains in poultry meat and egg production from individual birds in commercial flocks over the past decades are largely due to genetic selection in the nucleus breeding flocks of large global poultry breeding companies and the rapid transfer of these gains to the commercial cross-bred progeny. This has been facilitated by high reproductive rates, short generation intervals, reduced environmental variation, large population sizes to minimize the detrimental effects of inbreeding, and the use of several differentially selected sire and dam lines. The use of molecular markers can provide quantified criteria for assessing genetic diversity, either within or between populations. However, although they can be used to study relatedness between populations, provide information on past history of populations, detect introgressions and contribute to the genetic definition of a breed’s entity, molecular markers do not provide information on phenotypes and special adaptive traits. This book provides a comprehensive review of all aspects of broiler breeder production and management. It focuses on aflatoxin detoxification, physiological syndrome, broiler carcasses, managing dietary, immune modulation, nutritional rehabilitation and experimental heat stress. The topics covered in this extensive book deals with the core subjects of poultry science. The various sub-fields of poultry science along with technological progress that have future implications are glanced at in this book. It should be of valuable for poultry industry, students, researchers, as well as practitioners.

Preface............................................................................................................v

Chapter 1 Investigation of the Effects of Some Herbal Extracts Used in Different Ratios on Meat Fatty Acid Profile Level in Experimental Heat Stress Created in Broilers...............................................................1

Abstract...................................................................................................1

1. Introduction............................................................................................2

2. Materials and methods........................................................................3

3. Results.....................................................................................................5

4. Discussion...............................................................................................8

Acknowledgements...............................................................................9

Chapter 2 Assessment of a Nutritional Rehabilitation Model in Two Modern Broilers and Their Jungle Fowl Ancestor .......................................14

Abstract.................................................................................................14

1. Introduction..........................................................................................14

2. Etiology of stunting............................................................................16

3. Compensatory gain.............................................................................20

4. Chickens as a model for research in humans .............................21

5. Chicken and rye..................................................................................21

6. Conclusion............................................................................................29

Conflict of interest..............................................................................30

Chapter 3 Plant Extracts, Energy, and Immune Modulation in Broilers........39

Abstract.................................................................................................39

1. Introduction..........................................................................................40

2. Effects of dietary plant extracts when fed to poultry.................40

3. Poultry experiments (methodology)................................................43

4. Effect of PE on bird growth performance and dietary

available energy...................................................................................49

5. Effect of PE on hepatic antioxidant content..................................51

6. Effect of PE on the immune status of birds..................................51

7. Conclusions..........................................................................................52

Acknowledgements.............................................................................52

Conflict of interest..............................................................................52

Notes......................................................................................................52

Chapter 4 Managing Dietary Energy Intake by Broiler Chickens to Reduce

Production Costs and Improve Product Quality...............................59

Abstract.................................................................................................59

1. Introduction..........................................................................................60

2. Dietary energy sources for poultry.................................................62

3. Nutritive value of energy sources in poultry...............................67

4. Cost implications of energy sources...............................................69

5. Recent advances in understanding energy requirements of

poultry...................................................................................................71

6. Regulation of dietary energy and feed intake in poultry

nutrition................................................................................................72

7. Effect and implication of imbalance in energy intake in

poultry...................................................................................................76

8. Various strategies employed to manage dietary energy

intake.....................................................................................................77

9. Conclusion............................................................................................84

Chapter 5 Evaluation of Soybean Straw as Litter Material in Poultry

Production and Substrate in Composting of Broiler Carcasses....98

1. Introduction..........................................................................................98

2. The study..............................................................................................99

3. Conclusion..........................................................................................123

Acknowledgements...........................................................................123

Chapter 6 Ascites Syndrome in Broiler Chickens – A Physiological Syndrome

Affected by Red Blood Cells...............................................................130

1. Introduction........................................................................................130

2. The Ascites syndrome: Its causes and etiology in broiler

chickens .............................................................................................136

3. Cardiovascular functioning and responsiveness in ascitic

broilers ...............................................................................................140

4. Genetic and physiological aspects of coping with the

syndrome .........................................................................................144

5. Overall conclusions .........................................................................148

Chapter 7 Comparative Evaluation of Different Techniques for Aflatoxin Detoxification in Poultry Feed and Its Effect on Broiler Performance..............................................................................................166

1. Introduction........................................................................................166

2. Materials and methods ..............................................................168

3. Statistical analysis ............................................................................171

4. Results and discussion ...................................................................171

5. Conclusion .........................................................................................176

Citation......................................................................................................187

Index...........................................................................................................189

About Author

Klaus Jonsson obtained his Ph.D. in Animal Science from Public Research University, Alberta. He has more than a decade of experience in this field. He has served as a Guest Lecturer at various universities across America and Europe. He has written numerous research papers on animal production and animal nutrition. Her areas of researches are poultry production, animal biotechnology, livestock and environment. He has attended numerous agricultural conferences and symposiums and has presented 5 papers on poultry production.