Multicriteria fractional model for feed formulation: economic, nutritional and environmental criteria

RADU BURLACU, COSMIN CONSTANTIN NITU

Abstract


The traditionally used linear programming model for feed formulation  has sought the least- cost combination of ingredients that satisfies a specific level of nutritional  requirements. Together with the search for the lowest possible cost, other aspects such as maximising  diet efficiency in relation to proposed production  objectives and minimising  any excess that may lead to unacceptable damage to the environment, are other factors that are gaining in impor- tance in the world of animal nutrition. Taking into account all these factors forces us not only to bear in mind the individual concentrations of each of the nutrients in the feed but also the ratios of these with other nutrients.

In this work we show  how a multi-objective fractional  programming model is better adapted to current needs in feed design than the traditionally  used least cost linear model.

We also show how the model can be solved using the interactive multi-goal programming method with existing linear optimisation software.


Keywords


Multi-objective fractional programming; Diet formulation; Pig-nutrition; Environment

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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

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PUBLISHER: AGROPRINT Timisoara, Romania
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Bioengineering Faculty of Animal Resources
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