A Mathematical Model for Optimizing Organic Feed Mix Problem

In Thailand, demand for organic pork has emerged in recent years because of consumer concerns for health and the environment. Consequently, this creates a demand for organic feed for swine. This paper provides a linear programming model for an organic feed mix problem. The model considers a set of non-organic and organic raw materials (RMs) with their supply availabilities and organic RMs percentage in dry weight. An optimal feed formulation is determined to satisfy nutrient requirements and organic proportion of the feed, as well as to minimize their total RMs purchase and pre-processing costs. A numerical example is given to demonstrate the model use.