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CAB eBooks

Ebooks on agriculture and the applied life sciences from CAB International

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CABI Book Chapter Info
Cover for Crop models.

The structure of crop models is surveyed. No attempt is made to review crop models in general: they are too numerous. However, crop models have many common features, suitable for textbook presentation. To set the scene, a generic crop/plant ecosystem model working on a daily basis is constructed....

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Crop husbandry.

This paper considers simple models for use in crop husbandry. Topics considered are a grass drying enterprise, allocating land to arable crops, harvesting Brussels sprouts, planting wheat, grazing, and grassland and fertilizer usage. Silage modelling is also considered, and a simple early model of...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Plant diseases and pests.

The value and some methods of estimating yield losses are described. Two examples of simple disease prediction are discussed: potato late blight and the sugarbeet yellow virus. Disease simulation is illustrated with examples of fungal infection of sugarbeet roots and potato late blight. The plant...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Animal processes.

This chapter considers some simple compartmental models of animal processes, with reference to ruminants. The processes described are protein synthesis in tissues and the whole body, volatile fatty acid production by rumen microbes, life-cycle dynamics of rumen fungi, leucine kinetics in the udder, ...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Animal organs.

This chapter considers compartmental models which simulate whole organ function, with reference to ruminants. The organs considered in some detail are the mammary gland and the rumen. Essentially, the models are expressions of rate:state formalism, but here they are non-linear and must be...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Mathematical programming.

This chapter focuses on linear programming and its application in agriculture, though appropriate non-linear and other variations such as separable programming, integer programming, goal programming and dynamic programming are described. The main purpose of the chapter is to explain what is meant...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Whole-animal models.

This chapter describes compartmental models which simulate whole-animal function. The animals considered are the veal calf, the lactating dairy cow, the pig and the lactating sow. Essentially, the models are expressions of the rate:state formalism, but, as in the previous chapter, they are...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Animal products.

In this chapter, equations for milk yield from dairy cows are discussed, followed by energy utilization efficiency for milk production. The next two sections focus on meat production, body composition and allometry, leading to considerations of growth efficiency. Egg production and the amino acid...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Animal husbandry.

This chapter considers simple models for use in animal husbandry. Problems considered are ration formulation, allocation to feeding groups, effects of feeding on milk production and liveweight, pattern of calving and replacement. The chapter focuses on mathematical programming applications, thus...

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter
CABI Book Chapter Info
Cover for Animal diseases.

Three simplified 'case-study' models of important animal diseases are described: bovine spongiform encephalopathy, rabbit haemorrhagic disease and foot and mouth disease. These are deterministic although how stochasticity may be applied is sometimes indicated.

Author(s)
Thornley, J. H. M.; France, J.
ISBN
2007 CABI (H ISBN 9780851990101)
Type
Book chapter

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