Modeling Ruminant Digestion and Metabolism

Portada
Springer Science & Business Media, 31 may 1995 - 578 páginas
Role of mminants in human food production; Whyan animal scientist would choose to model animal systems; Basic organization of this book; Modeling principIes and terminology; Classification of models; Objectives in modeling; The modeling process I objective statements, block diagrams, equation forms and parameterization; Steps in modeling; Setting the modeling objective; Block diagrams; Formulation of mathematical statements; Development of numerical inputs; The modeling process II - solution algorithms, model evaluations and parameter estimation; Model solution algorithms; Evaluation of management and research models; Evaluation and use of analytical models for parameter estimation; Decision support software; Animal energetic models; Thermodynamic concepts in nutrition; Historical development of bases for feeding system models; Energy requirements for maintenance and production; Equations used to estimate maintenance and costs of production; Components of maintenanace; Protein and amino acid models; Current protein and amino acid systems; Analytic models of amino aicd and protein metabolism; Dynamic modeling; Biology and algebraic models of ruminant digestion; The rumen microbes and their metabolism; Balance models of ruminant digestion; An analytical model of rumen digestion; Microbial growth elements; Biology and algebraic models of growth; Classical equations for growth; Nutritional models of growth; Concepts of lhe basic biology of growth used in mechanistic models; Biology of lactation; Decent evolution of feeding systems for lactating dairy cattle; An analytical model of nutrient transactions during lactation; Dynamic models of ruminant digestion; Early dynamic models; Current dynamic models; Dynamic models of ruminant adipose tissue metabolism; Evolution of steady-state balance model; Radioisotope tracer elemets; Dynamic models of ruminant mammary metabolism; Development of model inputs and initial parameters; Descriptions of a model of mammary gland metabolism; Dynamic models of liver and viscera metabolism; Overall structure and notation; Mechanistic, dynamic models of growth; Beef growth models; Sheep growth and metabolism model; Lactation Background on MOLL Y. CSL; The program MOLL Y. CSL; Evaluation and use of a growth and lactation model; Behavioral analyses; Sensitivity analyses; Bioeconomic analyse.
 

Índice

Modeling principles and terminology
9
22 Classification of models
11
23 Objectives in modeling
18
References
25
The modeling process I objective statements block diagrams equation forms and parameterization
27
33 Setting the modeling objective
28
34 Block Diagrams
30
35 Formulation of mathematical statements
34
93 Nutritional models of growth
256
94 Concepts of the basic biology of growth used in mechanistic models
261
References
263
Biology of lactation
267
102 Recent evolution of feeding systems for lactating dairy cattle
268
103 An analytical model of nutrient transactions during lactation
278
References
297
Dynamic models of ruminant digestion
300

36 Development of numerical inputs
47
References
65
The modeling process II solution algorithms model evaluations and parameter estimation
75
42 Model solution algorithms
76
43 Evaluation of management and research models
86
44 Evaluation and use of analytical models for parameter estimation
103
45 Decision support software
113
References
115
Animal energetic models
118
53 Historical development of bases for feeding system models
124
References
146
Energy requirements for maintenance and production
148
62 Equations used to estimate maintenance and costs of production
149
63 Components of maintenance
162
References
185
Protein and amino acid models
189
72 Current protein and amino acid systems
191
73 Analytic models of amino acid and protein metabolism
195
74 Dynamic modeling
204
References
206
Biology and algebraic models of ruminant digestion
211
83 Balance models of ruminant digestion
223
84 An analytical model of rumen digestion
231
85 Microbial growth elements
242
References
244
Biology and algebraic models of growth
247
92 Classical equations for growth
248
113 Current dynamic models
313
References
317
Dynamic models of ruminant adipose tissue metabolism
319
122 Evolution of steadystate balance model
321
123 Radioisotope tracer elements
341
References
368
Dynamic models of ruminant mammary metabolism
370
132 Development of model inputs and initial parameters
373
133 Descriptions of model of mammary gland metabolism
387
References
409
Dynamic models of liver and viscera metabolism
413
142 Overall structure and notation
414
References
438
Mechanistic dynamic models of growth
441
152 Beef growth models
442
153 Sheep growth and metabolism model
455
References
465
Lactation
469
162 Background on MOLLYCSL
472
163 The program MOLLYCSL
476
References
516
Evaluation and use of a growth and lactation model
519
173 Sensitivity analyses
535
174 Bioeconomic analyses
547
References
564
Index
567
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