Modeling of Technology Implementation and Dairy
Farm Foundation in Hot Climates
M. Samer1, H. Grimm1, M. Hatem 2, R. Doluschitz1, and T. Jungbluth1
1 University of Hohenheim (440), 70593 Stuttgart, Germany
2 Agricultural Engineering Department, Faculty of Agriculture, Cairo
University, Giza, Egypt
Keywords: modeling, precision dairy farming, technology
Open housing system is used in hot climates, and it is usually a shade
structure covering yard(s) or corral(s) (Lindley and Whitaker, 1996).
Linear programming (LP) involves the planning of activities to obtain
optimal solution (Hillier and Lieberman, 2005). The objective is to
develop a model to help in designing dairy farms in hot climates, to
assist in implementing technology, and to calculate the costs.
Material and Methods
A computer-based management information system (CBMIS) was
made to collect the necessary technical data of the new technologies
on an ongoing basis. The LP is used to optimize the technology
selection, and then the Excel-Solver is used to solve the mathematical
model of the LP. The MS-Excel is used to develop the model, and to
show the results of the input settings automatically by calculating not
only the dimensions of the dairy cow building and its components, but
also the fixed, variable, and total costs.
Results and Discussion
The dairy farm foundation model (DFFM) is divided to 3 sub-models
(Fig. 1): (1) design model (DM) which assists in designing the corrals
and the cowsheds and in planning the dairy farm, (2) technology
model (TM) which is a mathematical model using the LP in making
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decisions to implement new technologies in the designed dairy cow
buildings by the DM and using the Excel-Solver to derive solutions
from the model, (3) costs calculation model (CM) which is a
programmed Excel worksheet that shows the results of the input
settings automatically by calculating the fixed, variable, and total
costs. The sub-models have mutual effects, (e.g.) after making a
building design by the DM; the technologies will be implemented by
the TM, and therefore it may be necessary to return to the DM to fit
the building dimensions to the implemented technology.
Figure 1. Dairy Farm Foundation Model.
The operations research (OR), especially the LP, can be used
successfully in implementing new technologies in dairy cow farms as
a new pattern for the precision dairy farming.
Hillier, F. S. and G. J. Lieberman. 2005. Introduction to Operations
Research. 8th Edition. The McGraw-Hill Companies, Inc., New York,
USA. 1061 p.
Lindley, J.A. and J.H. Whitaker. 1996. Agricultural Buildings and
Structures: Dairy Cattle Housing, p. 529-564. ASAE, St. Joseph,