Haresign Recent Advances in Animal Nutrition-1983

Studies in the Agricultural and Food Sciences
1. Auflage 2013
ISBN: 978-1-4831-6431-1
Verlag: Elsevier Science & Techn.
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 250 Seiten, Web PDF

Recent Advances in Animal Nutrition-1983 is a collection of papers that tackles the nutritional concerns of raising livestock. The text presents 14 studies that are organized into four parts. The first part covers the evaluation of nutritional data. This part discusses the interpretation of response data from animal feeding trials and errors in measurement and their importance in animal nutrition. Next, the book deals with topics relevant to pig nutrition, such as predicting the energy content of pig feeds and the use of fat in sow diets. Part III discusses the systems of calf rearing and milk replacers of calves. The remaining chapters tackle the concerns in ruminant nutrition, including nutritional aspects of high yielding dairy herds and copper in animal feeds. The text will be most useful to both researchers and practitioners of animal related disciplines, such agriculture and veterinary medicine.

Autoren/Hrsg.

Haresign, W.

Inhaltsverzeichnis

1;Front Cover;1
2;Recent Advances in Animal Nutrition—1983;4
3;Copyright Page;5
4;PREFACE;6
5;Table of Contents;8
6;Part I: Evaluation of Nutritional Data;10
6.1;CHAPTER 1. THE NUMBER OF REPLICATES AND OTHER CONSIDERATIONS IN THE DESIGN OF FIELD TRIALS;12
6.1.1;Introduction;12
6.1.2;Control;12
6.1.3;Replication;13
6.1.4;Randomization;13
6.1.5;Number of replicates;15
6.1.6;Magnitude of experimental errors;18
6.1.7;Number of animals per experimental unit;18
6.1.8;Number of pens per house;19
6.1.9;Conclusions;19
6.1.10;References;20
6.2;CHAPTER 2. THE INTERPRETATION OF RESPONSE DATA FROM ANIMAL FEEDING TRIALS;22
6.2.1;Duncan's multiple range test;23
6.2.2;The bent stick;24
6.2.3;The parabola;26
6.2.4;The hyperbola (exponential and inverse polynomial models);28
6.2.5;The Reading model;29
6.2.6;Conclusions;32
6.2.7;References;32
6.3;CHAPTER 3. ERRORS IN MEASUREMENT AND THEIR IMPORTANCE IN ANIMAL NUTRITION;34
6.3.1;References;48
7;Part II: Pig Nutrition;50
7.1;CHAPTER 4. CEREAL REPLACERS AS ALTERNATIVE SOURCES OF ENERGY FOR PIGS;52
7.1.1;Cereal replacers in Northern Ireland;52
7.1.2;Cassava;53
7.1.3;Molasses;61
7.1.4;Silage effluent;62
7.1.5;Comparison of control diet with manufactured compounds;63
7.1.6;Conclusions;63
7.1.7;References;64
7.2;CHAPTER 5. PREDICTING THE ENERGY CONTENT OF PIG FEEDS;68
7.2.1;Predictors;68
7.2.2;Prediction of individual feedingstuffs;70
7.2.3;Prediction of mixed diets;72
7.2.4;References;78
7.3;CHAPTER 6. THE USE OF FAT IN SOW DIETS;80
7.3.1;Why is piglet mortality so high and what changes occur?;80
7.3.2;Does added fat improve piglet survival?;82
7.3.3;What factors are important?;85
7.3.4;Is adding fat economically advantageous?;87
7.3.5;Conclusion;87
7.3.6;References;88
7.4;CHAPTER 7. VITAMIN RESPONSIVE CONDITIONS IN BREEDING PIGS;90
7.4.1;Introduction;90
7.4.2;A model for the derivation of vitamin allowances;90
7.4.3;Vitamin requirements of breeding female pigs;96
7.4.4;Vitamin responses in breeding pigs;99
7.4.5;The response of the breeding female to additional biotin;103
7.4.6;Selection of parameters for measurement of a vitamin response;105
7.4.7;Possibility of responses to other vitamins;106
7.4.8;Conclusions;109
7.4.9;References;109
8;Part Ill: Calf Nutrition;112
8.1;CHAPTER 8. SYSTEMS OF CALF REARING;114
8.1.1;References;120
8.2;CHAPTER 9. MILK REPLACERS FOR CALVES;122
8.2.1;The digestive system of the newborn calf;123
8.2.2;Clotting and the digestion of milk;124
8.2.3;Nutrient requirements of the neonatal calf;127
8.2.4;Specification of a milk replacer diet;131
8.2.5;Alternatives to skim milk;131
8.2.6;Choice of ingredients in formulating a milk replacer;141
8.2.7;Acidified milk replacers;143
8.2.8;Conclusion;145
8.2.9;References;146
9;Part IV: Ruminant Nutrition;150
9.1;CHAPTER 10. NUTRIENT REQUIREMENT OF THE BREEDING EWE;152
9.1.1;Introduction;152
9.1.2;Targets for body condition;152
9.1.3;Nutrient requirement for early pregnancy;154
9.1.4;Nutrient requirement in mid pregnancy;156
9.1.5;Nutrient requirement in late pregnancy;158
9.1.6;Lactation;163
9.1.7;References;168
9.2;CHAPTER 11. GROWTH PROMOTERS AND THEIR IMPORTANCE IN RUMINANT LIVESTOCK PRODUCTION;172
9.2.1;Introduction;172
9.2.2;Efficiency of digestion in the rumen;174
9.2.3;The efficacy of antimicrobial feed additives with particular reference to beef production;174
9.2.4;Mode of action of growth promoting feed additives in ruminants;177
9.2.5;Conclusions;184
9.2.6;References;184
9.3;CHAPTER 12. SOME NUTRITIONAL ASPECTS OF HIGH YIELDING DAIRY HERDS;188
9.3.1;Introduction;188
9.3.2;3000 Gallon Club high yield survey (HY survey);191
9.3.3;Nutrient requirements;199
9.3.4;Conclusions;202
9.3.5;Acknowledgements;203
9.3.6;References;203
9.4;CHAPTER 13. FEEDING FOR HIGH MARGINS IN DAIRY COWS;208
9.4.1;Introduction;208
9.4.2;Which margin is important?;208
9.4.3;Use of feed resources;209
9.4.4;Grass and forage;211
9.4.5;Purchased feeds;212
9.4.6;Relationship between MOPF/ha and feed inputs;212
9.4.7;The management necessary to produce high margins;214
9.4.8;Conclusions;215
9.4.9;References;216
9.5;CHAPTER 14. COPPER IN ANIMAL FEEDS;218
9.5.1;Introduction;218
9.5.2;The effect of copper in sewage sludge and pig manure on plant copper content;220
9.5.3;Copper deficiency in sheep and cattle;222
9.5.4;The economic effect of the use of copper in pig feeds;230
9.5.5;References;234
10;LIST OF PARTICIPANTS;236
11;INDEX;248
12;Erratum slip Recent Advances in Animal Nutrition - 1983;252