Assessing and optimizing the performance of a mechanistic mathematical model of the sheep mammary gland

C. Dimauro; A.S. Atzori; G. Pulina

Assessing and optimizing the performance of a mechanistic mathematical model of the sheep mammary gland

In: Modelling nutrient digestion and utilisation in farm animals

Authors:

C. Dimauro

C. Dimauro Dipartimento di Scienze Zootecniche, Università di Sassari, Via Enrico De Nicola 9, 07100 Sassari, Italy; dimauro@uniss.it

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A.S. Atzori

A.S. Atzori Dipartimento di Scienze Zootecniche, Università di Sassari, Via Enrico De Nicola 9, 07100 Sassari, Italy; dimauro@uniss.it

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, and

G. Pulina

G. Pulina Dipartimento di Scienze Zootecniche, Università di Sassari, Via Enrico De Nicola 9, 07100 Sassari, Italy; dimauro@uniss.it

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Type:: Chapter

Pages:: 72–82

DOI:: https://doi.org/10.3920/9789086867127_009

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A mechanistic mathematical model of the mammary gland was constructed by using a computeraided simulation via object-oriented modelling. The model was able to simulate the milk production process in dairy sheep taking into account the alveolar dynamics and the energy available for lactation. The overall modelling procedure was developed thorough three steps named understanding, assessment, and optimization. In the first step, physiological and biochemical processes regulating the phenomenon of milk secretion were translated into a differential equation system and theoretical solutions were found. In the assessment step, the ability of the model to reproduce realistic results was tested using real data. Finally, in the optimization step different scenarios were tested using data from an independent experiment. The main outputs of the model were: the actual and potential milk production, the alveolar dynamics and the animal energy balance during lactation Moreover, the model was able to simulate the effects on milk production of external stresses represented by the variation in milking frequency and a reduction in the energy supplied to the animal with the diet.

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Modelling nutrient digestion and utilisation in farm animals

E-Book ISBN:: 9789086867127

Publisher:: Wageningen Academic

Print Publication Date:: 30 Oct 2010

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- Life Sciences

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Assessing and optimizing the performance of a mechanistic mathematical model of the sheep mammary gland

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Modelling nutrient digestion and utilisation in farm animals

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