Optimizing seasonal grain intakes with non-linear programming: An application in the feed industry





Financial optimization, Non-linear programming, Purchase planning


In the feed sector, 95% of the input costs arise from the supply of raw materials used in feed production. The selling price is determined by competition in free market conditions. Due to the use of similar technologies and the very small share of production costs in total costs, it is unlikely that a competitive advantage will be gained through innovations in production. Between 30% and 50% of grain products are used in feed ration analysis. Cereals can only be harvested at a certain time of the year. Due to this limited time frame, feed production enterprises have to balance their financial burdens with their operational needs while making their annual stocks. The study was carried out to cover all the relevant businesses of the company, which has feed factories in four regions of Turkey. Based on the season data of the year 2020-2021, the grain purchase planning for the year 2021-2022 was tried to be optimized with non-linear programming. While creating the mathematical model, grain prices, interest rates, production needs according to production planning, sales according to sales forecasts, factory stocking capacities, licensed warehouse rental, transportation, handling and transshipment costs were taken into account.

With this unique paper, in the cattle feed production sector, storage, transportation and handling costs will be minimized. Cost advantage will be provided with optimum purchase planning in the season. According to the grain pricing forecast and market data for the 2021-2022 season, model can provide a cost advantage of 0.7%. Model will also provide insight to the managers for additional storage space investments.


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Author Biography

Alperen Ekrem Çelikdin, Planning and Logistics Manager, Tarfaş Aksaray Integrated Facilities, Aksaray, Turkey

Alperen Ekrem ÇELİKDİN currently works as a planning and logistics professional in the dairy feed industry. He received his B.S. degree from Çankaya University Industrial Engineering department. He received his MSc and Ph.D. degrees from the Business Administration Department of Aksaray University. His research interests include, supply chain planning, vehicle routing, heuristic optimization and organizational studies. 


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DOI: 10.11121/ijocta.2022.1158
Published: 2022-06-12

How to Cite

Çelikdin, A. E. (2022). Optimizing seasonal grain intakes with non-linear programming: An application in the feed industry. An International Journal of Optimization and Control: Theories & Applications (IJOCTA), 12(2), 79–89. https://doi.org/10.11121/ijocta.2022.1158



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