Technology, Engineering & Agriculture
August 2016
A Practical Guide
This practical research text provides an invaluable resource for all animal and veterinary scientists designing, analysing and interpreting results from nutrition and feed experiments in pigs and poultry. The emphasis throughout is on practical aspects of designing nutrition experiments. The book builds on the basics and proceeds to describe the limitations of experiment design involving different ingredients. It goes on to describe the characterization of experimental diets including ingredient selection, composition and the minimum proximate analysis required. The text details measurements and the tools available for understanding diverse data sets, data analysis and eventual publication of the research. This fully balanced and extensively referenced, yet practical, text is an invaluable resource to all animal, veterinary and biomedical scientists involved in the designing of nutrition experiments in pigs and poultry, and the publication of their research. ; This text describes the limitations of experiment design involving different ingredients, and the characterization of experimental diets including ingredient selection, composition and the minimum proximate analysis required. It details measurements and the tools available for understanding data sets, data analysis and publication of research. ; -: Foreword1: General Principles of Designing a Nutrition Experiment1.1: Introduction1.2: Nutrient Requirements Research1.2.1: Environment1.2.2: Cage versus pen and stocking density1.2.3: Feed and water form and quality1.2.4: Energy – amino acids, carbohydrates and fat1.2.5: Fibre1.2.6: Other nutrients1.2.7: Age1.2.8: Breed and sex1.2.9: Disease status1.3: Ingredient Nutrient Contents Research1.3.1: Cereals1.3.2: Oilseed meals1.3.3: Fats1.3.4: Vitamins and minerals1.3.5: Additives1.3.6: Digestibility studies1.4: Summary2: Most Common Designs and Understanding Their Limits2.1: Introduction2.2: What is the Goal of Simple Research Trials?2.3: Typical Interpretations of Response Data2.4: Choosing an Adequate (or the Best) Model to Use2.5: How Much of a Good Thing is Too Much?2.6: Variation in Bird Growth and Morphology2.7: The Choice of an Experimental Unit2.8: Experimental Power2.9: More Complex Designs for More Complex Questions2.10: Summary3: Practical Relevance of Test Diets3.1: Introduction3.2: Commercially Relevant Animal Performance3.2.1: Indices for measuring animal performance3.2.2: Presentation of animal performance results3.3: Feed Formulation3.3.1: Nutritional considerations for feed formulation3.3.2: Health considerations for feed formulation3.3.3: Processing considerations for feed formulation3.4: Summary4: Characterization of the Experimental Diets4.1: Introduction4.2: Designing Diets: the Semi-synthetic Conundrum?4.2.1: Sugars and starch4.2.2: Fibres4.2.3: Non-feed ingredients and phytate4.3: Designing Diets: Describing Test Ingredients and an Appropriate Basal Diet4.3.1: Trial design to compare one additive with a control4.3.2: Trial design to compare two different additive products4.4: Summary5: Measurements of Nutrients and Nutritive Value5.1: Introduction5.2: In Vitro Measurements5.2.1: Proximate analyses5.2.2: Fibre and carbohydrates in feed5.2.3: Summary5.3: Determining Nutritive Value of Ingredients5.3.1: In vivo experiments5.3.2: Determining the digestibility of speci?c nutrients5.3.3: Indirect measurements of digestibility5.3.4: Summary6: Designing, Conducting and Reporting Swine and Poultry Nutrition Research6.1: Introduction6.2: Planning the Experiment6.2.1: De?ning objectives6.2.2: Written protocol6.2.3: Review of facility capabilities6.2.4: Statistical plan6.2.5: Animal care standards and pig management6.2.6: Data integrity6.3: Interpreting Experimental Outcomes6.4: The Experiment Report6.4.1: Introduction6.4.2: Materials and methods6.4.3: Results6.4.4: Discussion6.4.5: Conclusions6.4.6: Literature cited6.5: Summary7: Extending the Value of the Literature: Data Requirements for Holo-analysis and Interpretation of the Outputs7.1: Introduction7.2: Holo-analysis – Minimum Requirements7.2.1: Considerations in use of data for holo-analysis7.2.2: What makes a good model?7.2.3: Model types7.2.4: Modelling considerations7.2.5: Outputs and interpretation8: Presentation and Publication of Your Data8.1: Publication Is Not the End of Your Research8.2: Scienti?c Style – a Myth Laid Bare8.3: Telling a Scienti?c Story8.4: Structuring the Scienti?c Story8.4.1: The Title8.4.2: The Introduction8.4.3: The Materials and Methods8.4.4: The Results8.4.5: The Discussion8.4.6: The Summary8.5: Scienti?c and Political Correctness8.6: Which Journal Is Best for My Article?8.7: Scienti?c Publication in the Future8.8: Will New Forms of Publication Change the Way We Write?
