Garnsworthy / Haresign / Cole Recent Advances in Animal Nutrition

1. Auflage 2013
ISBN: 978-1-4831-0025-8
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 232 Seiten, Web PDF

Recent Advances in Animal Nutrition: 1992 is an annual review of the changes and updates in the field of animal nutrition, especially progresses in the study of feeds. The book is divided into four parts. Part I discusses topics related to nutrition in non-ruminant animals, while Part II covers ruminant nutrition. Part III tackles studies about general nutrition such as the use of growth promoters in animal feeds and predicting the response to variation and diet, and Part IV deals with feed compounding and its effects. The text is recommended for agriculturists, zoologists, and those involved in the development and manufacture of feeds who would like to know more about the nutrition of agriculturally important animals.

Autoren/Hrsg.

Garnsworthy, P. C.

Haresign, W.

Cole, D. J. A.

Inhaltsverzeichnis

1;Front Cover;1
2;Recent Advances in Animal Nutrition;4
3;Copyright Page;5
4;Table of Contents;8
5;PREFACE;6
6;Part I: Non-ruminant Nutrition;10
6.1;CHAPTER 1. ANTINUTRITIONAL FACTORS IN THE PLANT PROTEINS OF DIETS FOR NON-RUMINANTS;12
6.1.1;Introduction;12
6.1.2;Occurrence of ANFs in seeds;13
6.1.3;Major effects of ANFs in monogastric animals;14
6.1.4;Some nutritional aspects of ANFs in the animal;29
6.1.5;References;33
6.2;CHAPTER 2. HOCK BURN IN BROILERS;42
6.2.1;Industry background;42
6.2.2;Technical background;42
6.2.3;Effects of drinker design;43
6.2.4;Effects of nutrition;46
6.2.5;Effects of environmental factors;49
6.2.6;Effect of litter materials;52
6.2.7;Effect of stocking density;54
6.2.8;Conclusions;56
6.2.9;Acknowledgements;58
6.2.10;References;58
6.2.11;Appendix A Experimental diets. Grower diets from 18 - 49 days (kg/tonne);59
6.3;CHAPTER 3. PROTEIN QUALITY AND AMINO ACID UTILISATION IN POULTRY;60
6.3.1;Introduction;60
6.3.2;Quality and the theoretical response to protein;60
6.3.3;Response to poor-quality proteins;61
6.3.4;Utilisation of amino acids from poor-quality proteins;64
6.3.5;Responses to poor-quality proteins re-examined;69
6.3.6;Minimising dietary protein concentration;74
6.3.7;Synthetic amino acids;75
6.3.8;Non-essential nitrogen;75
6.3.9;Replacement of protein by synthetic amino acids;76
6.3.10;References;78
7;Part II: Ruminant Nutrition;80
7.1;CHAPTER 4. NUTRITION - GENOTYPE INTERACTIONS IN DAIRY CATTLE;82
7.1.1;Introduction;82
7.1.2;Genotype x environment interactions;84
7.1.3;Food Intake, Feed efficiency and Profitability - The Langhill Experience;88
7.1.4;Performance of different genotypes in high and low input feed systems (Langhill data);91
7.1.5;Consequences for nutrition of future genetic progress;92
7.1.6;Metabolic efficiency;94
7.1.7;Genetic differences in responses to nutrients;96
7.1.8;Prospects for gene insertion and GxN interactions;97
7.1.9;Conclusion;97
7.1.10;References;98
7.2;CHAPTER 5. THE METABOLIZABLE PROTEIN SYSTEM FOR RUMINANTS;102
7.2.1;Introduction;102
7.2.2;Development of new protein systems;103
7.2.3;The Metabolizable Protein System;105
7.2.4;Diet formulation;109
7.2.5;Attractions of metabolizable protein;109
7.2.6;Limitations of Metabolizable Protein;109
7.2.7;Testing the metabolizable protein system;113
7.2.8;Conclusions;117
7.2.9;References;118
8;Part Ill: General Nutrition;120
8.1;CHAPTER 6. IMPLICATIONS OF NUTRITION OF ANIMALS ON ENVIRONMENTAL POLLUTION;122
8.1.1;Introduction;122
8.1.2;Nature of N losses in farm animals;123
8.1.3;Losses of other gaseous components;126
8.1.4;Animal waste as a raw material;126
8.1.5;Reducing N losses in animal waste through feeding management;128
8.1.6;N losses from the rumen and ways of reducing them;128
8.1.7;N losses from the intestine and ways of reducing them;130
8.1.8;N losses in intermediary metabolism and ways of reducing them;131
8.1.9;Financial consequences;134
8.1.10;Legislation;135
8.1.11;Conclusions;135
8.1.12;References;136
8.2;CHAPTER 7. REPORT ON THE EC COMMISSION ON THE USE OF GROWTH PROMOTERS AND OTHER ADDITIVES IN ANIMAL FEEDS - SOME PERSONAL OBSERVATIONS;140
8.2.1;Introduction;140
8.2.2;Environmental impact of the use of growth promoters;141
8.2.3;Summary;142
8.2.4;References;145
8.3;CHAPTER 8. PREDICTING THE RESPONSE TO VARIATION IN DIET COMPOSITION;146
8.3.1;Introduction;146
8.3.2;Historical Perspective;147
8.3.3;Raw materials;148
8.3.4;Formulation;150
8.3.5;Formulation errors;151
8.3.6;Weighing errors;152
8.3.7;Accuracy and Precision in chemical analysis;155
8.3.8;Statistical model of product variation;156
8.3.9;Nutritional value of compound feeds;158
8.3.10;Predicting the response to variance reduction;160
8.3.11;The context of on farm feeding;163
8.3.12;Better description of nutritional value;165
8.3.13;Conclusion;166
8.3.14;References;166
9;Part IV: Feed Compounding;168
9.1;CHAPTER 9. THE IMPACT OF CAP REFORM AND GATT ON THE UK ANIMAL FEED COMPOUNDING INDUSTRY;170
9.1.1;Introduction: the general background;170
9.1.2;The origins of agricultural protectionism;172
9.1.3;The CAP versus GATT;173
9.1.4;The nub of the current dispute;173
9.1.5;The opposing positions;174
9.1.6;Implications for compounders;175
9.1.7;Compound feed supply - The raw material matrix;177
9.1.8;The debate over substitutes;178
9.1.9;Prospects for compounders' use of cereals;178
9.1.10;The effect on consumers - primary demand;180
9.1.11;The effect on consumers - secondary demand;180
9.1.12;An overall assessment;183
9.1.13;References;185
9.2;CHAPTER 10. EFFECTS OF PROCESSING ON THE STABILITY OF HEAT LABILE NUTRIENTS IN ANIMAL FEEDS;186
9.2.1;Introduction;186
9.2.2;Changes in manufacturing processes;187
9.2.3;Effect of processing on the stability of heat labile nutrients;192
9.2.4;Summary and recommendations;200
9.2.5;References;201
9.3;CHAPTER 11. LEGISLATION AND ITS EFFECTS ON THE FEED COMPOUNDER;202
9.3.1;Medicated feeds;202
9.3.2;Marketing of feeds: New UK regulations;203
9.3.3;Dietary feedingstuffs;208
9.3.4;The Food Safety Act 1990;209
9.3.5;The Environmental Protection Act;211
9.3.6;Undesirable substances: EEC proposals;212
9.3.7;Conclusion;213
10;Appendix A: New style VWD for medicated feeds;214
11;Appendix B: Environmental Protection Act 1990 - Extracts from Guidance Note;217
12;LIST OF PARTICIPANTS;220
13;Index;232